吉林大学学报(工学版) ›› 2016, Vol. 46 ›› Issue (3): 725-731.doi: 10.13229/j.cnki.jdxbgxb201603007

• Orginal Article • Previous Articles     Next Articles

Noise diagnosis of in idle automotive air conditioning compressor and topology optimization

SHI Wen-ku1, ZU Qing-hua1, CHEN Zhi-yong1, MAO Yang1, HE Bang-ying1, FU Ji-yun1, LI Xiao-yan2   

  1. 1.State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130022, China;
    2.Department of Product Engineering, Mudanjiang Futong Automotive Air Conditioning Co., Ltd.,Mudanjiang 157000, China
  • Received:2015-01-09 Online:2016-06-20 Published:2016-06-20

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Abstract: Test diagnosis, analysis and improvement of a SUV and its air conditioning system are carried out to solve the inner noise problem, which is generated while the air conditioning is turned in idle. The test frequency spectrum analysis of inner noise and compressor vibration, modal analysis and test validation show that the working frequency of the compressor is close to the system's first order frequency. This causes resonance, which leads to obvious noise difference between turning on and turning off the air conditioning in idle. To solve this problem, the shape of the compressor support is improved by topology optimization. Modal analysis indicates that the first order modal frequency of the improved support keeps away from the working frequency of the compressor. The improved support is test and the results indicate that the inner noise is reduced by 2.3 dB(A), and the noise decreases obviously when the engine speed is from 900 r/min to 3000 r/min in run up condition.

Key words: vehicle engineering, automotive air conditioning compressor, noise diagnosis, topology optimization

CLC Number: 

  • U463.8
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