Research on the Vibration Measurement Approach to the On-Line Noise Evaluation for Vehicle Transmissions

Abstract:

At present, the common method of testing noise generated by vehicle transmission before delivery is to measure the noise sound pressure level by means of sound level meter. Since the measurement result is susceptible to background noise, the method can only be operated in anechoic chamber. In this paper, in order to measure sound pressure level directly on production-line, a new vibration measurement method and its relevant formula are presented. The proposed method can effectively avoid being affected by background noise and obtain the sound pressure level of transmission noise on production-line by testing the vibration acceleration signals of transmission box. It’s proved that the new method makes the delivery test of transmission noise more convenient and effective. Moreover, it can improve the delivery quality of transmission as well as the performance of whole vehicle.

• Periodical: Advanced Materials Research (Volumes 562-564)
• Pages: 1163-1167
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.562-564.1163
• Online since: August 2012
• Authors: Feng Qiang Zhao, Guang Qiang Li, Hong Ying Hu, Jia Lu Du, Chen Guo
• Keywords: Noise, On-Line Testing, Sound Pressure Levels, Transmission, Vibration Measurement

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