《机电工程》杂志社科技期刊核心期刊论文投稿机电一体化机械、仪表电工自动化、计算机浙江大学主办

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Complicated reactive muffler design on wheel excavator

Published:2015-04-07 author:WANG Wen-wu1，HOU Liang1，CAI Hui-kun1，2，LI Sheng-yu3，LI Cheng3 Browse: 5711 Check PDF documents

Complicated reactive muffler design on wheel excavator

WANG Wen-wu1，HOU Liang1，CAI Hui-kun1，2，LI Sheng-yu3，LI Cheng3

（1. Department of Mechanical and Electrical Engineering，Xiamen University，Xiamen 361005，China；

2. Shenzhen Institute，Xiamen University，Shenzhen 518057，China；

3. Xiamen Machinery Co.，Ltd.，Xiamen 361023，China）

Abstract： Aiming at the analysis of wheel excavator engine exhaust noise that has a wide frequency，based on the structural

characteristics of resonant cavity muffler and expansion chamber muffler，appropriately combine these two basic anechoic unit structure to

design complex structure muffler，ensure the muffler has a good silencing effect in all frequency. GT-power simulation software was used

to realize the coupling simulation of engine and muffler，and predict the performance of complex structure muffler. Orthogonal experiment

was used to optimize the structure parameters of muffler. In the end，achieve expected results through vehicle tests. The results indicate

that the muffler has a great acoustic performance and aerodynamic performance with the insertion loss 18 dB（A）in average.

Key words：exhaust muffler；GT-Power；excavator

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