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2017 Fall Technical Meeting (FTM)

October 22-24, 2017 | Greater Columbus Convention Center, Columbus, OH

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ABOUT THE FTM

The FTM is the best opportunity to learn about the latest research in the gear industry.

Come see why the Fall Technical Meeting (FTM) is the best opportunity to learn and share with some of the foremost experts in the gear industry. Speaking on design, analysis, manufacturing, application and gear drives, you will hear directly from the researchers about the results of their work.

If that isn’t enough, you will be able to have intriguing discussions with some of the most knowledgeable gear industry professionals from all over the world that have gathered to hear these impressive papers and special presentations.

Each speaker will present the content of his or her technical paper which has undergone a double-blind peer review of three industry topic experts. So, you know they will be good! All papers presented at FTM will be indexed in Scopus, the international database of peer-reviewed literature.

Sessions include the following topic areas:

  • Session I – Efficiency, Lubrication, Noise, and Vibration
  • Session II – Manufacturing, Inspection, and Quality Control
  • Session III – Application, Design, and Rating
  • Session IV – Materials and Heat Treatment
  • Session V – Gear Wear and Failure

This meeting immediately precedes Gear Expo, The Drive Technology Show. All registrants for the FTM will receive a pass to the show floor included with registration. All registration takes place through the Gear Expo website.

 

2017 PRESENTATIONS

Hotel Info

Greater Columbus Convention Center
400 North High Street
Columbus, OH 43215

Driving Directions

Room Rate

Hotel information for this event will be available through the Gear Expo website.

Pricing

Event Sponsors

Event Schedule

Sunday10-22-2017

Monday10-23-2017

Tuesday10-24-2017

Event Sessions

1 Efficiency, Lubrication, Noise, and Vibration

CFD Simulation of Power Losses and Lubricant Flows in Gearboxes

Dr. Franco Concli, University of Bozen

This paper describes the application of Computational Fluid Dynamics simulation of power losses and lubricant flows in gearboxes based on an original global re-meshing technique. This enables accurate predictions in relatively short simulation times, compatible with the industrial design practice. The results of the practical applications used for the validation are also included and discussed in the paper.

Understanding the Dynamic Influences of Gear Oils and Radial Shaft Seals

Mr. Joseph Walker, Freudenberg-NOK Sealing Technologies Mr. Craig Desrochers, P.E., Klüber Lubrication

Approximately 40 percent of long-term gearbox leakages can be traced back to poor interaction between the Radial Shaft Seal (RSS) and the lubricant. This paper highlights the most critical interactions between the industry’s most commonly used gear oil formulations, with emphasis on synthetic oils with Nitrile- and Fluoroelastomers. Through an ideal combination of base oil and additives, the demand of life expectancy on the radial shaft seals can be met.

Gear Tooth Strength Analysis of High Pressure Angle Cylindrical Gears

Dr. Alfonso Fuentes, Rochester Institute of Technology

In this paper, the gear tooth strength of high pressure angle gears is studied and compared with that of conventional pressure angle gears. The comparison will be performed regarding contact pressure, contact and bending stresses, loaded function of transmission errors, and comparison of errors of alignment and shift of contact pattern when mounted in similar shafts.

The Effectiveness of Shrouding on Reducing Meshed Spur Gear Power Loss – Test Results

Mr. Irebert Delgado, NASA

Reducing power losses to rotorcraft gearboxes, due to windage drag and viscous effects on rotating, meshed gear components would allow gains in areas such as vehicle payload, range, mission type, and fuel consumption. One method used in rotorcraft gearbox design attempts to reduce losses is to use close clearance walls to enclose the gears in both the axial and radial directions.This paper examines using meshed spur gears at four shroud configurations and compares the data to available data.

2 Manufacturing, Inspection, and Quality Control

Complete Measurement of Gearbox Components

Dr. Christof Gorgels, Klingelnberg

In today’s production environment, a variety of different measurement devices, such as CMMs, gear checkers, form testers, and roughness testers, are used to assess the quality and accuracy of workpieces, many of which require specialized training and environments.This paper describes how a Circular CMM (CCMM) can be integrated into a production environment. The benefits and challenges of the use of a CCMM will be discussed.

The Effect of Asymmetric Cutter Tip Radii on Gear Tooth Root Bending Stress

Dr. Nihat Yildirim, Gaziantep University

The tooth root fillet is where the maximum bending stress concentration region is located during torque transmission via gear pairs. An increase in gear root fillet radius provides a smooth transition from involute to trochoid, increases root critical section thickness, and the moment of inertia against bending of tooth. A 10-11% reduction in bending stress is obtained by using asymmetric cutter tip radii coefficients for two sides of the gear tooth profile with standard center distance and no tooth interference.

Magnetic Barkhausen Noise as an Alternative to Nital Etch for the Detection of Grind Temper on Gears

Mr. Stephen Kendrish, American Stress Technologies, Inc.

Magnetic Barkhausen Noise (MBN), is quantitative, repeatable, and non-destructive. Further, the MBN method is easily automated thus removing operator influence, as seen with Nital Etch, as a variable. Using a sample set of carburized spur gears ground to varying conditions of grinding burn, the MBN method is demonstrated to match or exceed the detection effectiveness of traditional Nital Etch. Residual stress depth distributions measured with x-ray diffraction and electrochemical layer removal are utilized as a quantitative verification method.

Areal Evaluation of Involute Gear Flanks with Three-Dimensional Surface Data

Yue Peng, University of North Carolina at Charlotte

This paper presents the benefits of areal evaluation of gear flanks, mathematical approaches for areal description of involute surface, deviations and modifications, and the characterization of areal data with “3D gear deviation parameters”. Approximation and orthogonal polynomial decomposition methods are applied for surface reconstruction and parameter calculation. Both simulated and measured gear data are analyzed, and comparisons with conventional evaluation results are presented.

Standard Samples for Grinder Burn Etch Testing

Mr. Michael Pershing, Caterpillar, Inc.

This paper discusses a unique method for producing a standard sample of an acid etch system that has a consistent amount of thermal damage. Multiple degrees of burn are applied to the sample to ensure that the etch inspection can detect all levels of potential burn on the piece parts. The sample can then be reliably used to test an acid etch system and its method to ensure the proper amount of contrast for threshold levels of thermal damage.

Psychoacoustic Methodology for the Noise Reduction of Bevel Gears

Dr. Hermann Stadtfeld, Gleason Corporation

A rather exciting conclusion from the psychoacoustic research is the proposal of a gear transmission graph which is a hybrid that connects different mathematical functions within the one pitch long contact area and the outside of this area. The results show that the hybrid transmission function dramatically changes the way bevel and hypoid gearsets will be optimized in the future for silent operation.

3 Application, Design, and Rating

FE-Based Method for Design of Robust Tooth Flank Modifications for Cylindrical and Planetary Gear Stages in Consideration of Manufacturing Tolerances

Julian Theling M.Sc., Laboratory of Machine Tools and Production Engineering (WZL) of RWTH Aachen, Chair of Machine Tools

The authors present a method to evaluate the quality and stability of flank modifications regarding manufacturing tolerances during the design process, using an FE-based tooth contact analysis. The presented design process provides a method to examine and simulate characteristics of the excitation behavior and durability of a gear pair. This enables the engineer to choose the most robust micro-geometry in terms of quality and stability already in the design process.

Reliability, Lifetime and Safety Factors

Dr. Stefan Beermann, KISSsoft AG

This paper uses several examples to show the practical differences in using safety factors versus reliabilities. The failure probability of all components for a specific lifetime is calculated to provide the reliability of the whole gearbox as a system of components. This provides the engineer an easier method to compare designs and identify the critical components.

A Comparison of Current AGMA, ISO and API Gear Rating Methods

Mr. John M. Rinaldo, Atlas Copco Comptec, LLC

There are many different gear rating methods in use today, and they can give substantially different results for any given gear set. This paper will make it easy to understand the choices and the impact the choices have on gearbox design. The eight standards examined are AGMA 2001, AGMA 6011, AGMA 6013, ISO 6336, API 613, API 617, API 672, and API 677. This paper will provide a useful aid to customers who are unsure of the differences between the standards.

Prediction of Dynamic Factors for Helical Gears in a High-Speed Multi-Body Gearbox System

Mr. Niranjan Raghuraman, Romax Mr. Chad Glinsky, Romax Technology

This paper will analyze the influence of operating speed, torque, system dynamics, and gear micro-geometry on the dynamic factors of a high-speed gearbox. It will show that the dependence of dynamic factor on torque is significant and must not be ignored, and that the presence of system resonance modes increases dynamic factors. The dynamic factors calculated in this study are compared with the dynamic factor values suggested by ISO and AGMA standards.

Special Presentation

Indexing Error and Dynamic Factors of Spur Gears
Dr. David Talbot, The Ohio State University

According to ANSI/AGMA 2001-D04, dynamic factor is directly related to gear quality and pitch line velocity. This study uses a dynamic load distribution model in order to assess the validity of this relationship and investigate its physical source. Predictions of both gear root stress and contact stress dynamic factor are considered in the study.

4 Materials and Heat Treatment

Fatigue Performance and Cleanliness of Carburizing Steels for Gears

Ms. Lily Kamjou, MSc, Ovako

The cleanliness of steels used for gears is of great importance when looking to improve life of gears or increase loads. In this paper, carburizing steels with the same basic chemical composition, but with a varying cleanliness level, are compared. The investigation showed a good qualitative correlation between the fatigue performance and the inclusion assessment made by ultrasonic evaluation and SEM. The results also show that traditional micro-inclusion rating methods are not sensitive enough to give a good indication of material performance.

Predicting Life on Through Hardened Steel Rack and Pinion for Jacking Applications in the Offshore Industry

Dipl. Ing. (FH) Adrian Nowoisky, Oerlikon Fairfield

It is well known in the industry that, according to AGMA and ISO gear calculation methods, the contact stresses in rack and pinion systems for jack up applications exceed the permissible limits by a factor of 3 to 6. However, these applications have been in service without any failures for more than 20 years. This paper will outline the process of the analytical evaluation of a specific design and validate it with systems currently in service.

Four Ways Polyketone Polymers Can Improve Gear Performance

Mr. Tim Morefield, Esprix Technologies

Historically, the most commonly specified resins for plastic gears have been acetal (POM), nylon (PA 66) and polyester (PBT), with or without modifiers (PTFE, carbon fiber, glass fiber, silicone or combinations thereof) to reduce friction and wear. Polyketone offers engineers four distinct advantages relative to other materials in meeting design challenges: 1) superior wear properties, 2) better dimensional control / stability, 3) superior creep rupture performance, and 4) quieter operation.

Effect of Non-Metallic Inclusions on Bending Fatigue Performance in High Strength 4140 Steel

Mr. Michael Burnett, TimkenSteel

This paper studies the fatigue performance of three sets of quench and tempered 4140 steel samples, representing three distinctly different inclusion populations. The inclusion populations for each of the ample sets were characterized using both an SEM-based image analysis system, primarily for the micro-inclusions, and a high resolution UT system for the macro-inclusions. The sample sets were also evaluated using both longitudinal and transverse specimens in all the bending fatigue tests. The results of these tests will be presented.

Sensitivity Study of Press Quench Process and Concept of Tooling Design for Reduced Distortion by Modeling

Dr. Zhichao (Charlie) Li, DANTE Solutions, Inc.

The press quench process includes parameters such as heating rate, austenitization temperature, applied load type, load amount, load locations from the tooling, friction between the tooling and the gear, and the quench rate. All these factors can lead to inconsistent distortion, especially for the radial size of thin-wall gears. In this paper, the effects of several critical factors on the dimensional inconsistency and tooling design are analyzed by heat treatment modeling software.

Special Presentation

The Link Between Steel Cleanness Measurement and Gear Life Performance
Dr. Peter C. Glaws, TimkenSteel

Several current industry material (cleanness) standards were reviewed and found to have poor correlation to gear fatigue performance. Possible reasons for the lack of correlation are discussed. Selected advanced cleanness measurement methods and appropriate resulting metrics are offered as alternatives, providing quantitative data in a format that may be used as tools for gear designers to improve gear reliability and highlight potential for light weighting and increased power.

5 Gear Wear & Failure

Influences of the Residual Stress Condition on the Load Carrying Capacity of Case Hardened Gears

Dipl.-Ing. Christian Güntner, Gear Research Center (FZG) – Technical University of Munich

Compressive residual stresses, such as those generated by shot peening, result in an increased tooth root bending strength. The author’s investigations show that shot peening can increase the load carrying capacity of case hardened gears significantly. Correlations between the residual stress state and the load carrying capacity limits were determined. This paper will give an overview of the main results of different investigations and discuss influences of the residual stress condition on different failure modes of case hardened gears.

Calculation of Tooth Flank Fracture Load Capacity – Practical Applicability and Main Influence Parameters

Dipl.-Ing. Michael Hein, Gear Research Centre (FZG) - Technical University of Munich

Due to improved material qualities, new surface finishing methods, and increased heat treatment process reliability, flank surface damages, such as pitting or micropitting, can increasingly be prevented in a reliable manner. At the same time, this may result in an increase of unexpected flank damages such as tooth flank fracture. A computer-aided calculation of the risk of tooth flank fracture damages will be presented.

Full Contact Analysis Versus Standard Load Capacity Calculation for Cylindrical Gears

Dr.-Ing. Michael Otto, Gear Research Center (FZG) – Technical University of Munich

In this paper local tooth contact analysis and standard calculation are used to determine the load capacity for the failure modes pitting, tooth root breakage, micropitting and tooth flank breakage. Analogies and differences between both the local and the standard approaches are shown. The example presented demonstrates a valid possibility to optimize the gear design by using local tooth contact analysis while satisfying the requirement of documenting the load carrying capacity by standard calculations.

The Influence of a Grinding Notch on the Gear Bending Strength Rating

Dr. Ulrich Kissling, KISSsoft AG

To achieve the requested quality, most gears today are ground. If the gear is premanufactured with a tool without protuberance, then at the position where the grinding tool retracts from the flank, a grinding notch in the tooth root area is produced. A review of the formulas to calculate the effects of the grinding notch is necessary. A 3D-FEM analysis that was used to deduce an improved formula will be presented.

Special Presentation

Gear Failure Analysis and Lessons Learned Under Unanticipated Loading Conditions
Dr. Anngwo Wang, MOOG Inc. Aircraft Group

Lessons about gear failure can be learned in the development phases under unanticipated design or manufacturing errors or unaccounted loading and operating conditions. This paper will study ten such failure cases. Lessons learned are presented and act as reminders not to overlook lightly loaded gears, gears with deflection, or mounting problems and unexpected issues from manufacturing errors.

Special Presentation

Reverse Gear System Engineering − Why, When & How − (Avoiding Pitfalls…and Litigation!)
Raymond J. Drago, P. E., Drive Systems Technology, Inc. Mechanical Power Transmission Consultants

Reverse engineering a gear system is a not too unusual task, thus it is easy to become complacent. Failure to fully follow best practices can result in, in the worst cases, very expensive, time consuming, and reputation damaging litigation. This presentation will rely on the experience of being an Expert Witness to provide information to aid the reverse engineering of a project as completely as possible.

Speakers

Dr. Franco Concli

University of Bozen

Session 1: Efficiency, Lubrication, Noise, and Vibration

Franco Concli is currently an Assistant Professor in the field of Machine Design at the University of Bozen (Italy). He received his Master's degree in Mechanical Engineering at Politecnico di Milano and a PhD from the same university, his PhD thesis on the application of CFD to gear transmissions. During his PhD studies, he spent six months as a visiting researcher at FZG (Germany). After receiving his PhD, he spent one year as a contract researcher at the Department of Mechanical Engineering of Politecnico di Milano, and three years at the research center of Bonfiglioli Mechatronic Research.

Mr. Joseph Walker

Freudenberg-NOK Sealing Technologies

Session 1: Efficiency, Lubrication, Noise, and Vibration

Joseph Walker is the global technology director for materials and laboratories for Freudenberg Sealing Technologies and Freudenberg-NOK Sealing Technologies (FNST). In this position, he is globally responsible for overseeing all advanced materials technology development and management of the FNST/FST laboratories. He is also the regional NAFTA leader for Chemical Regulatory Compliance for FNST. He is located in the Plymouth, MI Corporate R&D headquarters of Freudenberg-NOK Sealing Technologies.

A graduate of Lawrence Technological University, he holds more than 20 patents in the fields of materials applications and compositional chemistries and has authored and edited various chapters in text and industry publications.

Mr. Craig Desrochers, P.E.

Klüber Lubrication

Session 1: Efficiency, Lubrication, Noise, and Vibration

Craig Desrochers, P.E. graduated from Western New England University with a bachelor’s degree in mechanical engineering and obtained his professional engineering license in 2013. He has been an application and service engineer at Klüber Lubrication for four years and has recently assumed the Tribologist role, in charge of the mechanical testing lab at Klüber Lubrication’s North American headquarters in Londonderry, New Hampshire. As an application engineer at Klüber, Craig’s primary focus was on the gear oil and gear grease product lines with a focus on OEM relations. Prior to joining Klüber Lubrication, Craig worked as a mechanical engineer on nuclear powered submarines at Portsmouth Naval Shipyard. There, his primary focus was on the maintenance, testing, and modernization of the steam propulsion turbines, lubrication systems, and main reduction gearing systems. He is an active AGMA member and will continue to focus on the gear oil industry.

Dr. Alfonso Fuentes

Rochester Institute of Technology

Session 1: Efficiency, Lubrication, Noise, and Vibration

Dr. Alfonso Fuentes is affiliated with the Department of Mechanical Engineering of the Rochester Institute of Technology (RIT). Dr. Fuentes’ research focuses on the development of improved gear transmissions applied in helicopters, marine, and the automotive industry, development of enhanced design technologies for all types of gear drives, and development of IGD – Integrated Gear Design computer program. Dr. Fuentes is the author of more than eighty publications, including journal articles, conference papers, and technical reports. He is the subject editor for gears and cams for the Journal Mechanism and Machine Theory.

Mr. Irebert Delgado

NASA

Session 1: Efficiency, Lubrication, Noise, and Vibration

Irebert Delgado is a member of the Rotating and Drive Systems Branch at the NASA Glenn Research Center in Cleveland, Ohio, performing fundamental experimental work on gearbox windage power losses for rotorcraft drive systems. This work follows previous research by Dr. Robert Handschuh and Mr. Michael Hurrell, also from the NASA Glenn Research Center. Irebert has a Bachelors and Masters Degree in Mechanical Engineering. The breadth of his 20+ years of professional experience has encompassed experimental work in split-torque transmissions, airbreathing seals, seals for space applications, and HUMS for spiral bevel gears.

Dr. Christof Gorgels

Klingelnberg

Session 2: Manufacturing, Inspection, and Quality Control

Dr. Christof Gorgels is currently director of the precision measurement division at Klingelnberg. He has a university diploma and a Ph.D. from Aachen University (Germany) in mechanical engineering, specializing in gear manufacturing. Dr. Gorgels also served as head of the gear group at WZL at Aachen University and has previously presented a paper at an AGMA Fall Technical Meeting.

Dr. Nihat Yildirim

Gaziantep University

Session 2: Manufacturing, Inspection, and Quality Control

Dr. Nihat Yildirim is currently a lecturer at Gaziantep University in the Faculty of Engineering Department of Mechanical Engineering. He graduated with a mechanical engineering degree in 1986 and later completed his MSc on bolted connections in 1988. He completed his PhD in 1994 on “Design and Testing of High Contact Ratio (HCR) Spur Gears.” Dr. Yildirim then continued to work on the design of gears and other machineries (in particular food processing machineries) and worked for AgustaWestland on the design of helicopter transmission gears, filing a patent on micro geometry design of spur gears. His current research includes development of design and testing of asymmetric spur gears for high performance transmissions.

Mr. Stephen Kendrish

American Stress Technologies, Inc.

Session 2: Manufacturing, Inspection, and Quality Control

Stephen Kendrish has been employed at American Stress Technologies, Inc. since 2001 and is currently a sales and applications engineer specializing in the implementation of commercial instruments using Barkhausen noise analysis.  He received a B.S. in Physics from Carnegie Mellon University and has always been focused in the fields of destructive and non-destructive testing and characterization of materials.  Mr. Kendrish has contributed to various publications, including AGMA’s.

Yue Peng

University of North Carolina at Charlotte

Session 2: Manufacturing, Inspection, and Quality Control

Yue Peng is currently a doctoral student at the University of North Carolina at Charlotte. She has been a research assistant in the Center of Precision Metrology at UNC Charlotte and is dedicated to research on advanced gear metrology. She manages the Siemens Large Manufacturing Solutions Lab and arranges measurements with a coordinate measurement machine. Her research interests are in gear metrology, precision engineering, metrology technologies, uncertainty and GD&T. She earned a Master’s Degree at UNC Charlotte and a Bachelor’s Degree at Tianjin University in China. She received the AGMA scholarship award in 2016.

Mr. Michael Pershing

Caterpillar, Inc.

Session 2: Manufacturing, Inspection, and Quality Control

Michael Pershing received his B.S. in Metallurgical Engineering in 1990 from the University of Illinois, Urbana-Champaign and his M.S. in Metallurgical Engineering in 1997 from the University of Alabama, Tuscaloosa. Mike has held positions at Caterpillar in heat treat engineering, casting simulation development, and gear materials, before becoming Team Leader for Heat Treat R&D. Mike worked at Oak Ridge National Lab’s Materials Processing Group before returning to Caterpillar’s Engine Materials Technology group in 2006. He is now serving as Senior Technical Steward for Heat Treat.

Dr. Hermann Stadtfeld

Gleason Corporation

Session 2: Manufacturing, Inspection, and Quality Control

Hermann Stadtfeld received his bachelor’s and M.S. degrees in Mechanical Engineering from Technical University of Aachen (Germany). After receiving his doctorate in 1987, he worked as a scientist for Professor Manfred Weck at the Technical University of Aachen. He later worked at Oerlikon Buehrle AG in Zurich, Switzerland. Dr. Stadtfeld became a Visiting Professor at the Rochester Institute of Technology in 1992, then began working for The Gleason Works as Director of R&D. Between 2002 to 2005, Dr. Stadtfeld established a gear research company in Germany and taught at the University of Ilmenau. He then returned to Gleason, where today he is Vice President – Bevel Gear Technology and R&D. Dr. Stadtfeld has published more than 300 technical papers and ten books on bevel gear technology and holds more than 50 international patents on gear design, process, tools, and machines.

Julian Theling M.Sc.

Laboratory of Machine Tools and Production Engineering (WZL) of RWTH Aachen, Chair of Machine Tools

Session 3: Application, Design, and Rating

Julian Theling M.Sc. is a gear research assistant at the Laboratory of Machine Tools of the RWTH Aachen in Germany. His current research topics are the simulation of planetary gear stages regarding the excitation behavior, as well as the duration and the design process. Furthermore, Mr. Theling is part of the research group of the CWD (Center for Wind Power Drives), where he investigates the gear box of a 2.7 MW wind turbine. From 2011 to 2015, Mr. Theling studied mechanical engineering at the RWTH Aachen and achieved his bachelor's degree. Afterwards, he specialized in "Design and Development" during his master studies and earned his degree at the RWTH Aachen in 2016.

Dr. Stefan Beermann

KISSsoft AG

Session 3: Application, Design, and Rating

Dr. Stefan Beermann was born in Hannover, Germany. He studied Mathematics and Computer Science in Karlsruhe. His doctorate thesis, “Simulation of Vibrations in Gearboxes Applying Spectral Simulation,” was in collaboration with the FZG of the Technical University of Munich. In 1996, Stefan Beermann went to Zurich to join the gearbox company L. Kissling & Co. AG as product manager for the calculation software KISSsoft. In 1998, he switched to the KISSsoft AG as one of its first employees. Today, he is CEO of KISSsoft AG, together with the company’s founder Dr. Kissling.

Mr. John M. Rinaldo

Atlas Copco Comptec, LLC

Session 3: Application, Design, and Rating

John Rinaldo is retired after 39 years with Atlas Copco Comptec LLC, where he designed gears for high speed integrally geared centrifugal compressors. He has been designing gears for 25 years, is the official US delegate to two ISO working groups (ISO TC60/WG2 “Accuracy of gears” and is also convener of ISO TC60/SC1/WG4 “Terminology and notation of gears”), currently serves as the vice chair of two AGMA committees (Gear Accuracy Committee and the Nomenclature Committee), and is a member of the API 613 task force. He has been licensed as a Professional Engineer in both Wisconsin and New York, has been granted four patents, and has received both the AGMA Technical Division Executive Committee Award and the AGMA Distinguished Service Award.

Mr. Niranjan Raghuraman

Romax

Session 3: Application, Design, and Rating

Niranjan Raghuraman is an engineering analyst at Romax Technology in Boulder, Colorado. His background includes powertrain dynamics, parallel and cross axes gearing, plastic gearing, heat transfer, and thermodynamics. Niranjan earned his master’s degree from The Ohio State University. As part of his master's, he worked on plastic gear design and effects of temperature on plastic gears at The Gear and Power Transmission Laboratory with Dr. Don Houser. Prior to joining Romax, Niranjan worked at a major automotive OEM where he conducted durability studies for automotive rear axle drive unit and development of energy management models for vehicle powertrain.

Mr. Chad Glinsky

Romax Technology

Session 3: Application, Design, and Rating

Chad Glinsky joined Romax Technology in 2012 as a drivetrain engineering analyst and is now the Engineering Manager for the US. He manages a team of analysts and application engineers responsible for delivery of drivetrain consultancy, technical support of our software clients, training courses, CAE partnerships, and liaising with R&D and product development regarding software development roadmap requirements. Chad has a Master of Science degree in Mechanical Engineering from Michigan State University, with research experience in drivetrain dynamics and controls of continuously variable transmissions. Prior industry experience includes automotive quality engineering, electromechanical design, and noise and vibration testing.

Dr. David Talbot

The Ohio State University

Dr. David Talbot is an assistant research professor with the Mechanical and Aerospace Engineering Department of The Ohio State University. His research focuses on multi-disciplinary power transmission problems within the aerospace, transportation, wind energy, and industrial gear box industries. His specific research investigations include load distribution modeling of power transmission components, gear, bearing and power transmission system efficiency modeling and measurement, gear dynamics and vibrations, and gear manufacturing process simulation.

Ms. Lily Kamjou, MSc

Ovako

Session 4: Materials and Heat Treatment

Lily Kamjou is a Senior Specialist in Ovako’s Industry Solutions Development department. In her current role, she focuses on application development specializing in the powertrain area. Kamjou joined Ovako in 2008 and is based at the company’s headquarters in Stockholm, Sweden. She has held a variety of positions in the automotive sector, including working in the highly demanding market for diesel injection systems. Kamjou has a master’s degree in materials engineering from the Royal Institute of Technology (KTH, Stockholm) and a bachelor’s degree in social science from Stockholm University.

Dipl. Ing. (FH) Adrian Nowoisky

Oerlikon Fairfield

Session 4: Materials and Heat Treatment

Adrian Nowoisky is currently a Senior Product Engineer at Oerlikon Fairfield. He designs custom gearboxes and also analyzes and optimizes detailed gear geometry for spur and helical gear sets. In 2005, he earned his degree of Dipl. Ing. (FH) in mechanical engineering from the Anhalt University of Applied Sciences (Germany). During his professional experience of more than 12 years, he developed transmissions for ZF Getriebe GmbH, Rolls-Royce Deutschland, and Oerlikon Fairfield. He also has experience as a design engineer for submarine outfitting at the ThyssenKrupp Marine Systems in Kiel, Germany. He has participated in three approved patents in Germany and the European Union and has seven patent applications pending. This is his first presentation at the AGMA FTM.

Dipl.-Ing. Michael Hein

Gear Research Centre (FZG) - Technical University of Munich

Session 5: Gear Wear & Failure

Dipl.-Ing. Michael Hein is currently working as team leader at the Gear Research Centre (FZG) in Munich and specializes in flank load carrying capacity of gears. After finishing his diploma degree in mechanical engineering at Technical University of Munich (TUM), he began working at FZG in 2012 as a research associate specializing in load capacity of gears under variable loads. He is member of the German delegation of ISO Working Group 6 and Working Group 15, dealing with gear load carrying capacity of spur and helical gears.

Mr. Tim Morefield

Esprix Technologies

Session 4: Materials and Heat Treatment

Tim has worked in the thermoplastic resins industry for over thirty years, beginning at G.E. Plastics, where he held positions in the Technical Services & Application Development section of the LEXAN™ product group, which performed finite element structural and CAE mold filling (“MoldFlow”) analyses. Tim also worked with G.E. Corporate R&D, managing a technology demonstration project focused on integration of CAD and CAM technologies. Subsequently, Tim moved to the Advanced Process Development group where he had the responsibility of developing the part and tooling design technologies. Tim also held technical managerial and market development positions in the specialty resin compounding and resin distribution segments of the plastics industry. Tim operated an independent consultancy providing technical services for resin compounders, distributors, molders, and OEMs. Tim holds a Bachelor’s degree in Mechanical Engineering and a Master’s degree in Polymer Science.

Dr. Zhichao (Charlie) Li

DANTE Solutions, Inc.

Session 4: Materials and Heat Treatment

Zhichao (Charlie) Li is the Vice President and co-owner of DANTE Solutions, Inc., located in Cleveland, Ohio. Dr. Li received his bachelor's and master's degrees in materials engineering from Harbin Institute of Technology in China and his doctoral degree from Wright State University. He continued his studies and received his MBA from Baldwin Wallace University in 2012. Dr. Li’s area of expertise is design, innovation and optimization for heat treatment processes, materials characterization, and finite element modeling, etc. Dr. Li’s responsibilities at DANTE are project management, heat treatment software development, technical support, and new market development.

Dr. Peter C. Glaws

TimkenSteel

Dr. Peter C. Glaws is a senior scientist for materials at TimkenSteel Corporation. He began his career in the steel industry in 1977 and since joining the company in 1987, has held numerous senior technical positions focused on improving steel cleanness and performance. Glaws earned a B.S. in Metallurgical Engineering from Lafayette College and a Ph.D. in Materials Engineering from Carnegie Mellon University. He held a post-doctoral fellowship at the University of Newcastle, NSW, Australia. Glaws can be reached at peter.glaws@timkensteel.com.

Dipl.-Ing. Christian Güntner

Gear Research Center (FZG) – Technical University of Munich

Session 5: Gear Wear & Failure

Dipl.-Ing. Christian Güntner is currently working as a research associate at the Gear Research Center (FZG) in Munich and specializes in material and load carrying capacity of gears. He began working at FZG in 2013 as a research associate after finishing his diploma degree in mechanical engineering at Technical University of Munich (TUM).

Dr.-Ing. Michael Otto

Gear Research Center (FZG) – Technical University of Munich

Session 5: Gear Wear & Failure

Dr.-Ing. Michael Otto is currently Head of Department "Calculation and verification of transmission systems" at the Gear Research Center (FZG), Prof. K. Stahl, TU München. He joined FZG in 2000 as a research assistant and gained his position as Head of Department in 2006. He holds a PhD in mechanical engineering; his research topics include gear load distribution and tooth root carrying capacity. Current research activities include research on gear geometry, tooth contact analysis, and gearbox-related NVH. Another main topic is deformation and stress analysis of supporting shafts and bearings in the gearbox. He drives the development of various scientific programs at FZG that are available for the companies that are members of FVA.

Dr. Ulrich Kissling

KISSsoft AG

Session 5: Gear Wear & Failure

Dr. Ulrich Kissling was born in Zurich. He studied Machine Engineering at the Swiss Technical University (ETH). In 1981, he started his professional career as calculation engineer in a gearbox manufacturing company in Zurich.

As calculation engineer for gearbox design, Ulrich Kissling started to develop software for gear, bearing and shaft layout. In 1985, he decided to name this software ‘KISSsoft’ and started to market it. In 1986, the first license was sold. Today, the software is the leading drive train design software, used by more than 3000 companies on all continents.

As a gear expert, Dr. Kissling is actively participating in several ISO Working Groups for the development of international standards.

Dr. Anngwo Wang

MOOG Inc. Aircraft Group

Anngwo Wang is working as an Engineering Specialist at MOOG Inc. Aircraft Group. He is responsible for gear design and analysis of the transmission in the aircraft flight control system. Recent major projects he has worked on included F35 Leading Edge Flap Actuation System and Wingfold System, Boeing 787 Leading Edge Slat Actuation, Airbus A350XWB Trailing Edge Flap Actuation System, KC46 Tanker Boom and Hoist Actuators, and Comac C919 Leading Edge Slat Actuators.

Raymond J. Drago, P. E.

Drive Systems Technology, Inc. Mechanical Power Transmission Consultants

Raymond J. Drago, P. E. is Chief Engineer – Gear Technologist of Drive Systems Technology, Inc. (DST), a mechanical power transmission consulting organization that he founded in 1976. Prior to this, Mr. Drago worked for the Boeing Company – Helicopters Division until his retirement after 37 years of service. Currently, Mr. Drago is involved in the analysis, design, manufacture, assembly, and testing of many gear systems. In his role with DST, Mr. Drago is active in all areas of mechanical power transmission, including the design and analysis of drive systems in a very diverse field of application from heart pumps to very large mining & mill gears. He has also prepared and delivered more than 150 Advanced Gear System Engineering courses dealing with various aspects of gear design and analysis. He has also presented more than 125 technical papers through various technical societies including AGMA, ASME, STLE and AIST.

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