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中文摘要：
基于管道声学理论,提出了发动机进气系统噪声仿真方法——噪声仿真简易法。首先,应用噪声仿真简易法,进行发动机进气系统声学性能的试验设计分析;其次,通过多项式拟合,获得主要阶次噪声的响应面表达式;最后,经过设计参数优化,确定最优设计参数。通过发动机进气系统声学性能动态优化设计,能够迅速准确地获得进气系统声学性能优化信息,可为进气系统声学性能设计提供定量依据。
英文摘要：
Based on the theory of pipeline acoustics,a method of noise simulation of engine＇s intake system——simple method of acoustic simulation was brought forward.Firstly,applying ＂simple method of acoustic simulation＂,the design of experiments（DOE）of acoustic performance of engine＇s intake system was carried through;besides,the response-surface expression of mostly order noise was gotten through polynomial regress.Finally,the optimization design parameters was confirmed through optimizing.Through dynamic optimization design of acoustics property of intake systems of an engine,the exact information of acoustic property optimization of intake systems can be obtained rapidly,which provides a quantitative reference for the acoustic property design of intake systems.
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