Journal of South China University of Technology (Natural Science Edition) ›› 2009, Vol. 37 ›› Issue (4): 70-74.

• Mechanical Engineering • Previous Articles     Next Articles

Modeling and Analysis of Rotor Dynamics of Flywheel Battery for Vehicles

Fu Xiong-xin  Xie Xiao-peng   

  1. School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 51640, Guangdong, China
  • Received:2008-04-11 Revised:2008-08-13 Online:2009-04-25 Published:2009-04-25
  • Contact: 付雄新（1978-），男，博士生，主要从事机电一体化研究． E-mail:xiongx．fu@mail．scut．edu．cn
  • About author:付雄新（1978-），男，博士生，主要从事机电一体化研究．
  • Supported by:

    广东省电动汽车重点实验室资助项目（20060008）

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Abstract:

The pose change of a vehicle may result in the base motion of flywheel battery. In order to solve this problem, a 7-DOF （ Degree of Freedom） dynamic model of the vehicle and a 5-DOF dynamic model of the flywheel battery rotor are established via the substructure analysis method, and a method to transform the base motion into the dynamics of rotor excitation is proposed. Moreover, the vibration amplitude of the rotor which varies with the base vibration due to the pose change of vehicle, is analyzed. The results show that the base vibration due to the pose change results in the variation of the force which is exerted on the flywheel rotor and which excites the 5-DOF vibration of the rotor.

Key words: flywheel battery, electric vehicle, vehicle dynamics, rotor dynamics, substructure analysis method