• CN：11-2187/TH
• ISSN：0577-6686

• 运载工程 •

基于解决变速箱怠速敲齿的摩擦离合器传动系统的建模与分析方法*

1. 1. 华南理工大学机械与汽车工程学院 广州 510641；
2. 宁波宏协离合器有限公司 宁波 315807
• 出版日期:2017-02-20 发布日期:2017-02-20
• 作者简介:刘雪莱，男，1988年出生，博士研究生。主要研究方向为汽车传动系统振动分析方法与控制，汽车设计理论方法。E-mail：liuxuelaiaaa@126.com上官文斌(通信作者)，男，1963年出生，博士，教授，博士研究生导师。主要研究方向为汽车振动分析方法与控制，汽车设计理论与方法;超弹性、黏弹性、弹塑性建模和复杂耦合系统动力学特性计算分析。E-mail：sgwb@163.com
• 基金资助:
* 国家自然科学基金(11472107)和广东省自然科学基金(2014A030313254) 资助项目; 20160226收到初稿，20161008收到修改稿;

Modeling and Analysis Method of Automotive Driveline Transmission System for Reducing Gear Rattle

LIU Xuelai1, SHANGGUAN Wenbin1, HOU Qiufeng2, WANG Shannan2, AHMED Waizuddin1

1. 1. School of Mechanical and Automotive Engineering， South China University of Technology，Guangzhou 510641；
2. Ningbo Hongxie Clutch Co.， Ltd.， Ningbo 315807
• Online:2017-02-20 Published:2017-02-20

Abstract:

A nonlinear torsional model with 4 degrees of freedom for automotive driveline transmission systems at idle is presented and method for calculating dynamic response of the model is proposed. A rattle index is defined for evaluating rattle of a meshed gear pair. For trouble shouting of gear rattle of a car at idle, the influence of nonlinear stiffness and damping of the clutch on rattle index of the car is investigated using the developed model and calculation method. Stiffness and angle limits of the first stage damper of a clutch are improved for reducing gear rattle of a car based on the calculated results of rattle index, meshing force and meshing displacement of the meshed gear pair in the gearbox at idle. Noise at the engine compartment and vibration at one point at the transmission are measured for the baseline clutch and the improved clutches of a car. Comparisons of the measured noise and vibration show that there are corrections between rattle index and the noise at engine compartment and vibration at one point of transmission. It is also concluded that the stiffness and damping can be improved to reduce gear rattle at idle using the modeling and calculating methods presented.