The inherent characteristic analysis of the electrical wheel based on the flexible ring model
ZUO Shuguang1, MAO Yu1, WU Xudong1, DUAN Xianglei2
1. Clean Energy Automotive Engineering Center, Tongji University, Shanghai 201804, China;
2. Technical Center of SAIC Motor Passenger Vehicle Co, Shanghai 201804, China
To analyze the inherent characteristic of the electrical wheel applied in the distributed driven electric vehicles, the flexible ring tire model is established to get the derivation of the equations of the natural frequency and modal shape. The in-plane modal characteristic of the electrical wheel is explained theoretically. And the parameters of the tire model are identified according to the free modal test of the electrical wheel. The analysis of the inherent characteristic shows the modal distribution. The 0th order modal is concerned with the circumferential rotation of tire resulted from the tangential deformation of the tire ring. The 1st modal shows that the deformation of the tire ring and the movement of the tire are coupled with each other. And the other higher modal is only related to the deformation of the tire ring, which indicates that the mass of the drive motor has no influence on the higher modal of tire. It is presented by the analysis of influencing factors that the frequencies of the 0th and 1st order modal reduce gradually with the increase of the moment of inertia and mass of the drive motor separately. And the free modal frequency is higher than the constraint modal as well. At last, the conclusions above are verified by the modal test of the electrical wheel. The conclusions presented in this paper provide the references for the dynamic analysis, selection and using of the electrical wheel.
左曙光1, 毛钰1, 吴旭东1, 段向雷2. 基于柔性环轮胎模型的电动轮固有特性分析[J]. 振动与冲击, 2016, 35(3): 41-47.
ZUO Shuguang1, MAO Yu1, WU Xudong1, DUAN Xianglei2. The inherent characteristic analysis of the electrical wheel based on the flexible ring model. JOURNAL OF VIBRATION AND SHOCK, 2016, 35(3): 41-47.
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