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

Author:

Zuo Jin Yu1,Liu Shao Jun1,Huang Zhong Hua2,Hu Qiong1

Affiliation:

1. Central South University

2. Hunan Institute of Engineering

Abstract

Abstract. 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 shaft 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.

Publisher

Trans Tech Publications, Ltd.

Cited by 2 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Determination Methodology for Stability Domain of Hybrid Electric Power System with Multiple Excitation Sources;IOP Conference Series: Materials Science and Engineering;2019-03-13

2. Hybrid Excavator Shafting Torsional Vibration Analysis;Applied Mechanics and Materials;2012-12

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