东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2010, Vol. 31 ›› Issue (3): 418-421.DOI: -

• 论著 • 上一篇    下一篇

柴油发动机进气系统噪声计算机模拟技术

岳贵平;张义民;   

  1. 东北大学机械工程与自动化学院;
  • 收稿日期:2013-06-20 修回日期:2013-06-20 发布日期:2013-06-20
  • 通讯作者: -
  • 作者简介:-
  • 基金资助:
    国家自然科学基金资助项目(50875039);;

Computer simulation of noise from intake system of diesel engine

Yue, Gui-Ping (1); Zhang, Yi-Min (1)   

  1. (1) School of Mechanical Engineering and Automation, Northeastern University, Shenyang 110004, China
  • Received:2013-06-20 Revised:2013-06-20 Published:2013-06-20
  • Contact: Yue, G.-P.
  • About author:-
  • Supported by:
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摘要： 柴油发动机进气系统噪声是高档商用车最主要的噪声源之一,对车内噪声影响尤其显著.基于管道声学理论和流阻分析技术,提出了柴油发动机进气系统噪声模拟方法——无源法.解决了常常困扰发动机进气系统声学仿真的难题——无法获得发动机仿真模型所需的几何参数和物理参数.应用"无源法",在不具备柴油发动机仿真模型的情况下,仍然能进行进气系统噪声的计算机模拟,获得进气系统管口噪声和发动机功率损失的预测结果,快速准确地为进气系统声学性能优化提供依据.

关键词: 柴油发动机, 进气系统, 噪声, 计算机模拟, 无源法

Abstract: The noise from intake system of diesel engine is the most important noise source of a top-grade commercial vehicle, especially its interference inside the vehicle. Based on the theory of pipeline acoustics and flow resistance analysis, an approach named non-source method was proposed to simulate the noise from diesel engine so as to solve the problem that the acoustic simulation of intake system is so hard to carry out, i.e. no way will the geometrical/physical parameters be obtained though they are necessary to the simulation model of an engine. With the non-source method applied to the solution of such a problem, the computer simulation can be done without a relevant simulation model of noise from intake system. Then, both the noise and power loss of the engine can be predicted to provide a reference for the rapid and accurate acoustic optimization of engine's intake system.

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