Simulation Analysis of the Vibration Characteristics of the Parallel Hybrid Shaft System

摘要：

　　The multi-body dynamics simulation model of the hybrid system with a flexible shaft was established through rationally simplifying the system structure of a parallel hybrid system, assembling the flexible shaft, pulley, piston assembly, rod assembly and the rotor shaft according to the actual constraints, and adding the appropriate connections.The engine cylinder pressure reconstruction model and the motor vector control model were established in MATLAB as system shafting incentives.The simulation analysis of the dynamic characteristics of the system shafting was carried out in the boost mode of the hybrid system.The results show that: the shaft torsional vibration and bending vibration have happened when the hybrid system is running, and the engine cylinder pressure change was the main factor which caused the shatt vibration.Torsional vibration occurs mainly near the even multiple of the frequency of the shaft rotational frequency, and the torsional amplitude decreases gradually with the increase of resonance frequency; radial vibration occurs mainly in the range of 0 to 3 times the rotational frequency.

关键词： Hybrid Power system Shaft Dynamics Vibration

作者: ZUO Jin-yu LIU Shao-jun HUANG Zhong-hua HU Qiong

作者单位: College of Mechanical and Electrical Engineering,Central South University,Hunan,China College of Mechanical Engineering,Hunan Institute of Engineering,Hunan,China

会议类型: 国际会议

会议名称: the 3nd International Conference on Digital Manufacturing & Automation (第三届数字制造与自动化国际会议(ICDMA 2012))

会议地点: 桂林

会议语种:英文

页码: 825-831

在线出版日期: 2012-08-01（万方平台首次上网日期，不代表论文的发表时间）