讲座主题：Driveline System Modeling for Noise and Vibration
主讲人：Yawen Wang
讲座时间：2016年11月4日（星期五）下午 15:00
讲座地点：牵引动力实验室红楼202室
主讲人简介：
Yawen Wang is currently a PhD candidate in the Mechanical Engineering Department at the University of Cincinnati (UC). He received his B.S. degree in Mechanical Engineering in 2010 from Chongqing University, and obtained his M.S. degree in Mechanical Engineering in 2013 from University of Cincinnati. He has been working as a graduate research assistant at Prof. Teik Lim’s Vibro-acoustic and Sound Quality Research Laboratory since 2010, and has been leading the research team for Hypoid and Bevel Gear Mesh and Dynamic Modeling Consortium since 2012. His current research interests include gear noise/vibration, vehicle NVH (noise, vibration and harshness) and vibro-acoustic modeling. Yawen is an active student member in SAE (Society of Automotive Engineers), ASME (American Society of Mechanical Engineers), and INCE-USA (The Institute of Noise Control Engineering of the USA).
讲座内容简介：
Gear whine is one of the major noise sources for automotive powertrain, especially when the noise control methods are targeted to reduce the engine noise and road noise. Hypoid and spiral bevel gear drives are widely used in the automotive rear axle, and are often subject to harmful dynamic responses which cause gear whine and structural fatigue problems. To design a more silent, efficient and durable driveline, a system-level model for the hypoid/bevel geared rotor system is needed.
In the first part of this presentation, some of the automotive NVH research activities in the Vibro-acoustic and Sound Quality Research Laboratory will be briefly introduced. In particular, the implementation on drivetrain vibration and noise control will be emphasized. In the second part of this presentation, a further-step study on the development of axle system dynamic modeling will be presented. The modeling approach includes tooth and bearing contact analysis, gear mesh and dynamic modeling, finite element (FE) and boundary element (BE) modeling. The effect of the flexible components, such as shafts, bearings and housing, assembly errors, sliding friction and torque load will be discussed.
主办：西南交通大学牵引动力国家重点实验室
