Based on the dynamical impingement force on the liner, the vibration response of cylinder block resulted from piston slap force was obtained by using finite element method. 二阶运动对缸套的动态敲击力作为载荷边界条件施加在有限元模型上,计算出气缸体在活塞敲击下的振动响应;
Piston slap will be more noticeable when the engine is cold. 当发动机是冷的时侯,活塞敲击声将更加明显。
Piston Sway Motion and Slap on Cylinder Liner in a Four Stroke Diesel Engine 四冲程柴油机活塞摇摆及其对缸套的冲击
In the separation of actually measured IC engine vibration signals, three separated signals are respectively generated by exhaust valve, piston slap and inlet valve by analysis. 在实测内燃机振动信号分离中,所得到的3个分离信号经过分析后确认为排气门落座、活塞撞击和进气阀落座产生的信号。
Frequency analysis for response of piston slap. 活塞换向撞击激励的频谱分析。
The certainty of piston slap in reciprocating dynamic machinery and the influencing factors of piston slap are analyzed in this thesis. 分析了往复式动力机械活塞换向撞击产生的必然性,并对活塞换向撞击过程的影响因素进行分析。
The piston slap is the major source of the engine vibration, and induced noise is the biggest mechanical noise that is only smaller than combustion noise. 内燃机活塞拍击作为内燃机振动的主要激励源之一,其引起的噪声是内燃机仅次于燃烧噪声的最大的机械噪声。