Journal of South China University of Technology(Natural Science Edition) ›› 2012, Vol. 40 ›› Issue (11): 71-77.

• Mechanical Engineering • Previous Articles     Next Articles

Test Method for 3-Axis Rotational Inertia of Bogie

Wang Xiu-gang1  Su Jian1  Cao Xiao-ning1  Xu Guan1  Wang Xing2   

  1. 1. College of Traffic，Jilin University,Changchun 130022,Jilin,China; 2. United Automotive Electronic Systems Co. Ltd,Chongqing 401120
  • Received:2012-05-08 Revised:2012-06-20 Online:2012-11-25 Published:2012-10-01
  • Contact: 王秀刚(1986-) ，男，博士生，主要从事轨道车辆工程、车辆智能检测与诊断、车辆性能监测与虚拟测试技术研究． E-mail:wangxiugang0504@163.com
  • About author:王秀刚(1986-) ，男，博士生，主要从事轨道车辆工程、车辆智能检测与诊断、车辆性能监测与虚拟测试技术研究．
  • Supported by:

    吉林省科技厅重点资助项目( 20080356) ; 长春市科技支撑计划项目( 2010018) ; 吉林大学研究生创新基金资助项目( 20121091， 20121076) ; 吉林大学中央高校基本科研业务费专项资金资助项目( 450060487415)

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Abstract:

This paper deals with the 3-axis rotational inertia of bogie,an important parameter evaluating the running performance of vehicles. In the investigation,first,according to the structure characteristics of the test bench of bogie parameters,a vibration theory-based method to test the 3-axis rotational inertia is put forward,and the corresponding test models are constructed. Next,in order to well control the actuators during the test of rotational inertia,an inverse displacement analysis model of the simulation platform is established based on the Euler angle and the vector norm. Then,in the Simulink environment,the inverse displacement of the platform during the test of rotational inertia around the X axis is resolved in real time. Finally,the relation curve of actuator’expansion amount versus time is obtained. Simulation results indicate that the proposed computing model of inverse displacement is correct.

Key words: bogie, 3-axis rotational inertia, test method, inverse displacement analysis