活塞是一种噪声源在内燃机中,燃烧过程所产生的噪声及机械噪声在整个发动机噪声中占主要地位。在产生机械噪声的运动件中,最重要的是承受燃气力和惯性力的活塞。活塞在气缸中的往复和横向运动,以及由此而施加在缸壁主 Pistons are a source of noise in internal combustion engines. The noise generated during the combustion process and mechanical noise dominate the overall engine noise. Among the moving parts that produce mechanical noise, the most important are pistons that withstand both gas and inertial forces. Reciprocating and lateral movement of the piston in the cylinder, and thus to the cylinder wall main