噪声与振动控制

›› 2012, Vol. 32 ›› Issue (3): 147-151.DOI: 10.3969/j.issn.1006-1355.2012.03.034

• 3.运载工具振动与噪声 • 上一篇    下一篇

汽车用发电机NVH性能测试声学实验室设计及鉴定

辛阳1,董大伟1,闫兵1,张胜杰2   

  1. （ 1. 西南交通大学 机械工程学院， 成都 610031；2. 成都华川电装有限责任公司， 成都 610106 ）
  • 收稿日期:2011-08-31 修回日期:2011-11-01 出版日期:2012-06-18 发布日期:2012-06-18
  • 通讯作者: 辛阳

Design and Appraisal of Acoustics Laboratory for NVH Performance Test of Vehicle’s Alternators

XIN Yang1,DONG Da-wei1,YAN Bing1,ZHANG Sheng-jie2   

  1. ( 1. School of Mechanical Engineering， Southwest Jiaotong University， Chengdu 610031， China；2. Chengdu Huachuan Electric Pans CO.，LTD., Chengdu 610031， China ）
  • Received:2011-08-31 Revised:2011-11-01 Online:2012-06-18 Published:2012-06-18
  • Contact: XIN Yang

摘要： 针对汽车用发电机NVH性能测试要求，建立专用的声学实验室，该实验室由声学测试间和控制间组成，由声学隔墙隔开。参照GB/T 3767-1996 《声学 声压法测定噪声源声功率级 反射面上方近似自由场的工程法》及相关企业测试要求进行设计，建成后通过中国测试技术研究院鉴定，各项指标达到设计要求。介绍该实验室的设计方法及鉴定结果。

关键词: 声学, 声学实验室, 汽车用发电机, 环境修正量, 背景噪声

Abstract: 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.

Key words: acoustics, acoustic laboratory, vehicle alternator, environmental correction value, background noise

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