AsiaBrake 2020 - Brake Conference in Asia

Invited Guest Speakers

5 Lectures from the most renowned names in friction industry

Key Role of Thermomechanics on the Friction Brakes Performance

Prof. Philippe Dufrenoy - University of Lille, France

He is Professor of Mechanics and Engineering at the University of Lille in France. He manages a research team of 15 people dedicated to tribology at the Laboratory of Multiscale and Multiphysics Mechanics (LaMcube – FRE CNRS 2016) and he is Director of a common lab with the MG-Valdunes company called SWIT’lab (Science for Wheelset Innovative Technology) dealing with the fatigue strength of railway rolling components. He has published more than 50 research papers in the field of fatigue of materials and structures and in the field of tribology, dedicated to frictional braking, wheel-rail contact and blade-casing interactions in turbojet. He performed more than 20 research contracts with manufacturers in transportation. He was co-founder of the EUROBRAKE conference in 2012 starting from the JEF conference in France and associating with other countries.

On Formulation of Brake Friction Materials and Their Performance

Prof. Peter Filip - University of Southern Illinois, USA

Professor Filip works and teaches in the areas of friction science, nanotechnology, materials engineering, and biomaterials at several institutions in the US, Europe and Asia. He co-authored more than 500 scientific publications, graduated over 100 students, and performed research sponsored by 89 industrial partners and seven governmental agencies in US, Europe and Asia. He serves on numerous committees such as the ASTM and SAE International Standardization Committees, Eurobrake and SAE Brake Colloquium. Dr. Filip delivered 29 invited/keynote lectures and received numerous international awards. Currently he co-organizes and chairs materials sessions at SAE and Eurobrake meetings, International Forum on Sliding Friction and Vibration, and serves as the Immediate Past Chair of the Wear of Materials Congress.

Physics of Stick-Slip: Impact of Friction Vector Rotation

Prof. Ken Nakano - Yokohama National University, Japan

Stick-slip is the typical self-exited vibration appearing in sliding systems, which is caused by the negative dependence of frictional force on slip velocity. Recently, it has been found that in an extended single-degree-of-freedom sliding system, the in-plane angular misalignment (referred to as the Yaw Angle Misalignment (YAM)) produces a considerable positive damping, and therefore provides a practical method to suppress stick-slip [see: https://youtu.be/Swwa3dO3MuE]. This YAM effect, which needs no additional mechanical devices and no viscoelastic materials, has been confirmed experimentally and numerically. Besides, the YAM effect has been also confirmed in various types of sliding systems (e.g., an extended two-degree-of-freedom sliding system with in-plane anisotropy and in-plane asymmetry [see: K. Nakano et al., Facta Univ Ser Mech Eng, 17, 113-124 (2019)]), and some applications to mechanical devices have been examined. In this presentation, with experimental evidence obtained by a novel apparatus, it is shown that the YAM effect is originated from the friction vector rotation, which is invisible from the conventional point of view.

Prof. Ken Nakano is a full professor at Faculty of Environment and Information Sciences of Yokohama National University. He studied aeronautics and astronautics at University of Tokyo (1988-1997) and obtained his doctorate from University of Tokyo (1997). He worked at Department of Mechanical Engineering of Saitama University as an assistant professor (1997-2000). After working at Department of Mechanical Engineering of Yokohama National University as an associate professor (2000-2015), he obtained a full professorship at Yokohama National University (2015). His areas of interest include tribo-physics (e.g., multiscale and multiphysics of friction), tribo-dynamics (e.g., stabilization of tribosystems by breaking structural symmetry), and tribo-informatics (e.g., objective evaluation of tactile sensations). In 2015, from Japan Society of Mechanical Engineers (JSME), he was awarded with the JSME Medal for Outstanding Paper on the friction-induced vibration.

Brake Emissions

Prof. Georg Ostermeyer - Technical University of Braunschweig, Germany

Prof. Georg Ostermeyer is professor and head of the Institute of Dynamics and Vibrations (IDS) at University of Braunschweig. He has about 30 years of experience in industry and University on friction and brakes and published more than 250 papers. He got several Awards, f.i. the Lloyd L. Withrow Award and the Dan Mahanna Achievement Award. He is member of the Steering Committee of eurobrake and of the Advisory Board of the SAE Brake Colloquium.

The Triggering Mechanism of Brake Squeal and Vibration Focusing on the Effect of Surface Topography

Prof. Ho Jang - Korea University, Korea

A systematic approach to reduce the brake noise and vibration is introduced based on the fundamental understanding of the stick-slip produced at the sliding interface during brake applications. Various material properties, including stiffness and interfacial strength of the brake friction material, are considered to assess the noise propensity of brake friction materials. Particular attention is given to the topography of the sliding surface and its influence on the triggering energy of the brake noise and vibrations. The experimental evidence of the root cause for the brake pads with high noise propensity is substantiated by molecular dynamics simulations

He is a Professor of Materials Science and Engineering at Korea University and a Director of the TriboMaterials Research Center (TMRC).

He has published more than 70 research papers on the friction and wear of brake friction materials and discs and performed more than 40 research contracts to improve brake performance of the vehicle for automotive manufacturers around the world, based on the fundamental understanding of the sliding friction and vibration.

In 2018, he was awarded the Dan Mahannah Achievement Award from SAE International for distinction and significant contributions to the brake and friction material industries.