四缸柴油机减振分析及平衡机构设计  

Four-cylinder Diesel Engine Vibration Analysis and Balancing Mechanism Design

作　　者：张娜[1] 曾帅[1] 徐兆坤[1] 

机构地区：[1]上海工程技术大学汽车工程学院,上海201620

出　　处：《柴油机设计与制造》2010年第3期18-21,56,共5页Design and Manufacture of Diesel Engine

摘　　要：对某直列四缸柴油机振动平衡分析,得出不平衡的二阶往复惯性力及其力矩是其主要振动激励源之一。原机型中没有平衡机构,受到空间的限制,所设计的双平衡轴机构,只是平衡二阶往复惯性力。通过振动测量对比试验,表明所设计的双平衡轴机构能达到显著地降低发动机整机振动烈度的效果,从而也证实了二阶往复惯性力才是最主要的振动激振源。An analysis of balance and vibration of some inline four-cylinder diesel engine shows that the second-order unbalanced reciprocating inertia force and torque are one of the main vibration excitation sources. Since the base engine has no balancing mechanism and there is a space limitation, a double-shaft balancer is designed and it can only balance the second-order reciprocating inertia force. Vibration comparison test shows that the double-shaft balancer can achieve the effect of lowering significantly engine vibration intensity, confirming the second-order reciprocating inertia force is the main vibration excitation source.

关 键 词：柴油机 二阶往复惯性力 平衡机构 振动烈度 

分 类 号：TK421[动力工程及工程热物理—动力机械及工程]