发动机, 进气系统, 声学性能, 优化, 噪声仿真简易法

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.