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Design and Appraisal of Acoustics Laboratory for NVH Performance Test of Vehicle’s Alternators
XIN Yang;DONG Da-wei;YAN Bing;ZHANG Sheng-jie
2012, 32 (3):
147-151.
DOI: 10.3969/j.issn.1006-1355.2012.03.034
Aiming at the requirement of NVH performance test of vehicle alternators, a special acoustics laboratory was built. This laboratory was divided into test room and control room by an acoustic wall. It was designed in the light of GB/T 3767-1996 “Acoustics-Determination of sound power levels of noise sources using sound pressure-Engineering method in an essentially free field over a reflecting plane” and the test requirements of relevant enterprises. After the completion of the laboratory, it passed the appraisal of National Institute of Measurement and Testing Technology, and its respective indicators met the design requirements.
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