消声器优化设计及其性能分析方法的研究  

Research on Optimization Design of Muffler and Its Performance Simulation Method

作　　者：钟绍华[1] 金国栋[1] 张选国 章鸿 

机构地区：[1]华中科技大学,武汉430074 [2]湖北通达公司

出　　处：《内燃机工程》2005年第1期55-58,67,共5页Chinese Internal Combustion Engine Engineering

摘　　要：本文介绍了一种消声器设计及其性能分析方法。该方法用传统的传递矩阵法形成初步设计方案,然后借助于CFD软件进行性能分析,从而达到消声器的结构优化设计。GT Power是一种新的发动机性能仿真软件,该软件基于一维流体动力学的原理对包括消声器在内的发动机系统进行性能模拟和仿真。本文讨论了应用该软件对消声器的流体动力特性和声学性能进行分析的方法。实例模型的模拟结果显示,该方法具有良好的预测性能。This paper introduces a muffler design method and its performance simulation. This method gives the preliminary sketch of the muffler with transfer matrix method at first, and then attains the optimized design of the muffler by means of performance simulation with the CFD software. This software GT-Power is a new simulation tool based on one-dimensional fluid dynamics developed for the performance simulation of engine system including exhaust system parts such as muffler. This paper discusses the software application to the fluid dynamics and acoustics the performance of muffler. The results of the simulation example show the good prediction ability of the method.

关 键 词：内燃机 消声器 性能仿真 设计方法 

分 类 号：TK413[动力工程及工程热物理—动力机械及工程] U464[机械工程—车辆工程]