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Optimization of Electric Vacuum Pump Mount to Improve Sound Quality of Electric Vehicle Tongji University
- Format:
- Book
- Conference/Event
- Author/Creator:
- Guo, Rong, author.
- Conference Name:
- WCX SAE World Congress Experience (2020-04-21 : Detroit, Michigan, United States)
- Language:
- English
- Physical Description:
- 1 online resource cm
- Place of Publication:
- Warrendale, PA SAE International 2020
- Summary:
- The noise and vibration of electronic vacuum pump (EVP) become a major problem for electric vehicles when the vehicle is stationary. This paper aims at the EVP's abnormal noise of an electric vehicle when stationary. Driver's right ear (DRE) noise was tested and spectrogram analysis was carried out to identify the noise sources. In order to attenuate this kind of abnormal noise, a new EVP rubber mount with a two-part structure was introduced, which optimized the transmission path of vibration. Then dynamic stiffness and fatigue life of the EVP mount with different rubber hardness were calculated through finite element analysis (FEA) approach. Bench tests of dynamic stiffness and fatigue life were performed to validate the FEA results. Test data of the sample mount shows that sound pressure level of DRE was dramatically attenuated and thus passengers' ride comfort was enhanced
- Notes:
- Vendor supplied data
- Publisher Number:
- 2020-01-1259
- Access Restriction:
- Restricted for use by site license
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