噪声与振动控制2018，Vol.38Issue(z1)：151-155,5.DOI:10.3969/j.issn.1006-1355.2018.Z1.033
活塞与缸套间隙对敲击噪声的影响
Effect of Piston and Cylinder Clearance to Piston Slap Noise
马一鸣 1杨国栋 1曹贻鹏1
作者信息
- 1. 哈尔滨工程大学 动力装置工程技术研究所,哈尔滨 150001
- 折叠
摘要
Abstract
The piston slap noise is one of the mechanical noise of diesel engine. The noise control of diesel engine can generally be considered from three aspects, including source, transmission path and receiving part, in which the effect of controlling noise source is the best. Base on the theory of piston secondary motion, the piston motion dynamics model is established. The load of four contact points between piston and cylinder are calculated when the gap between the piston and the cylinder is 0.5mm, 1.0mm and 1.5mm separately. A finite element model of diesel engine was established. Based on the time domain method, the vibration and noise characteristics of the diesel engine are calculated. Based on the acoustic boundary element method, the surface radiation pressure of the body is calculated. The effects of the clearance between piston and cylinder liner on diesel engine piston slap noise are studied. The results show that, by adopting the method of reducing the piston and cylinder clearance , The piston slap noise of diesel engine can be effectively reduced .关键词
振动与波/柴油机/活塞敲击/有限元分析Key words
vibration and wave/diesel engine/piston knocking/finite element analysis分类
通用工业技术引用本文复制引用
马一鸣,杨国栋,曹贻鹏..活塞与缸套间隙对敲击噪声的影响[J].噪声与振动控制,2018,38(z1):151-155,5.
