Dynamic Response Analysis for NW Planetary Gear Transmission Used in Electric Wheel Hub
| Autor: | Chaosheng Song, Zhuxiang Ou, Caichao Zhu, Xingyu Yang |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
dynamic characteristics
Offset (computer science) General Computer Science 02 engineering and technology load analysis 01 natural sciences Vehicle dynamics offsets 0203 mechanical engineering 0103 physical sciences medicine Waveform Torque General Materials Science 010301 acoustics Physics Response analysis General Engineering Stiffness Mechanics Transmission system Gear transmission NW planetary transmission 020303 mechanical engineering & transports Electric wheel hub lcsh:Electrical engineering. Electronics. Nuclear engineering medicine.symptom lcsh:TK1-9971 |
| Zdroj: | IEEE Access, Vol 7, Pp 111879-111889 (2019) |
| ISSN: | 2169-3536 |
| Popis: | Taking the NW planetary gear transmission of an electric wheel hub as the research object, the mesh model was developed to calculate the mesh parameters using Masta. Then the lump parameter method was used to establish the dynamic model of the NW planetary transmission system considering the time-varying mesh stiffness, transmission error and bearing stiffness. The impacts of the torque load on the dynamic characteristics including the dynamic mesh force, center trajectory, offsets and load sharing coefficients were investigated. Results show that the dynamic mesh force waveform and spectral characteristics of each planetary gear at high and low speeds under the rated and maximum torque load are almost identical. Compared to the peak response at speed 485 rpm and 1770 rpm, both the magnitude and location of the third response at relative high speed about 4300 rpm are increased due to the load increasing. The mean and fluctuation range of the offsets in the radial direction are both larger than the tangential direction. As the load increases, the mean value of the radial offset increases and the magnitude decreases significantly. The mean value of the tangential offset decreases significantly, but the magnitude increases first and then decreases. The load sharing characteristics of the low-speed stage of the NW planetary gear is better than the first stage. With the increase of the load, the load sharing performance of a two-stage planetary transmission gets better and the difference in load sharing between the high-speed and low-speed stages also decreases. |
| Databáze: | OpenAIRE |
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