汽车车外噪声测试场地声学特性的模拟计算A Simulating Calculation of Acoustic Characteristics on Testing Site for Measuring External Vehicle Noise
陈朝阳,D·Anderton
摘要(Abstract):
将汽车车外噪声测试场地的声反射和声吸收的综合影响用一个单参数——有效流阻(Effective Flow Resistivity)σ表示。通过现场试验、分析传递特性,用曲线拟合的方法得到了表征地面声学特性的有效流阻σ。
关键词(KeyWords): 噪声;声性质;测试;模拟;计算
基金项目(Foundation):
作者(Author): 陈朝阳,D·Anderton
参考文献(References):
- 1 T. F. W. Embleton, etc. Effective flow resistivity of ground surfaces determined by acoustical measurements. J. Acoust. Soc. Am. 1983, (74) .
- 2 M. E. Delany and E. N. Bazley. Acoustical properties of fibrous absorbent materials. Appl. Acoust. 1970, (3) :105~116.
- 3 M. Abramovitz and I. A. Stegun. Handbook of Mathematical Functions. New York. 1970.