Evaluation of Diesel Engine Noise Reduction Measures Based on Hierarchy Diagnosis

作     者：梁兴雨 舒歌群 卫海桥 陈达亮 LIANG Xingyu, SHU Gequn, WEI Haiqiao, CHEN Daliang(State Key Laboratory of Engines, Tianjin University, Tianjin 300072,China)

作者机构：State Key Laboratory of Engines Tianjin University 

出 版 物：《Transactions of Tianjin University》 (天津大学学报（英文版）)

年 卷 期：2007年第13卷第3期

页      面：205-210页

核心收录：

学科分类：080703[工学-动力机械及工程] 08[工学] 0807[工学-动力工程及工程热物理] 

基　　金：Supported by China Postdoctoral Science Foundation (No.20060400193) Yunnan Foundation for Science and Technology Cooperation between Government and University(No.2003HBBAA02A049) 

主　　题：diesel engine hierarchy diagnosis noise reduction power spectrum 

摘      要：Effect of different noise reduction measures for diesel engines was evaluated based on hierarchy diagnosis. The hierarchy diagnosis chart and hierarchy judgment matrix were given. Through evaluation of noise reduction measures, the main strategies of noise reduction were found. The result shows that the noise reduction level of different frequency belts varies from measure to measure. The reduction capacity of different measures could not add simply, which relates to the problem of parameter matching.