基于整车声传函的声学包评价及应用
彭程，徐峰，孙敏，潘威，王小龙
（广州汽车集团股份有限公司 汽车工程研究院，广东 广州 511434）
摘要：利用整车状态下噪声传递的线性和互异性原理建立整车声传函的测试方法，通过该方法判定某试验样车前围隔声性能不达标。按照泄漏排查-薄弱位置优先改善-整体优化的改善顺序，首先通过气密性试验排查泄漏，然后利用声强扫描法找出隔声薄弱位置进行改善，优化后的整车隔声性能和车内噪声均改善明显，此方法可以为整车声学包调校和评价提供思路和参考。
关键词：整车声传函；声强扫描；评价方法；互异性
中图分类号：TB52 文献标志码：A doi：10.3969/j.issn.1006-0316.2016.06.010
文章编号：1006－0316 (2016) 06－0042－05
The sound package evaluation method and application base on noise reduction in vehicle
PENG Cheng，XU Feng，SUN Min，PAN Wei，WANG Xiaolong
( Auto Engineering Research institute, Guangzhou Automobile Group Co., Ltd., Guangzhou 511434, China )
Abstract：According to the linear and mutual principle of noise transmission in the whole vehicle, the test method of the sound transmission function of the whole vehicle is established. According to improve sequence of the leak investigation-weak position priority improvement-total optimization, first through the air tightness test invest leakage, and then using sound intensity scanning method find out the weak position and improve it，the sound insulation performance and noise are improved obviously after optimization. This method can conveniently judge if the acoustic performance of sound package is up to grade or not.
Key words：sound transmission function；sound intensity scanning；evaluation method；reciprocal
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收稿日期：2016－02－24
作者简介：彭程（1986－），男，湖南邵阳人，硕士，工程师，主要研究方向为整车声学包开发。
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