某国产发动机曲轴扭转振动实验研究  

Experimental Study of Crankshaft Torsional Vibration Based on Domestic Engine

作　　者：廖中文[1] 王海林[2] Liao Zhongwen;Wang Hailin(Department of Mechanical and Electrical Engineering,Guangdong AIB Polytechnic College,Guangzhou City,Guangdong Province 510507, China;School of Engineering, South China Agriculture University,Guangzhou City, Guangdong Province 510642, China)

机构地区：[1]广东农工商职业技术学院机电系,广东省广州市510507 [2]华南农业大学工程学院,广东省广州市510642

出　　处：《农业装备与车辆工程》2017年第11期77-79,共3页Agricultural Equipment & Vehicle Engineering

摘　　要：针对曲轴扭转振动计算时激励力矩和阻尼系数难以确定从而导致计算精度受到影响的问题,采用PAK噪声振动分析软件PAK 5.3、美国EPC260型光电扭转振动传感器等对某国产发动机曲轴扭转振动情况进行实验测试,根据测试结果可以对扭转减振器的设计进行评估和修正。通过在不同条件下进行曲轴振动情况的实际测试,结果表明:该国产发动机安装固有频率为416 Hz及428 Hz的皮带轮时,曲轴扭转振动能得到较好控制。Aiming at the problem that during crankshaft torsional vibration calculation,excitation torque and damping coefficient are difficult to determine,and so the calculation precision is affected,this article uses PAK noise vibration analysis software PAK5.3and torsional vibration EPC260type photoelectric sensor from the United States to test torsional vibration of a domestic engine crankshaft.According to the test result,the design of the torsional vibration damper can be evaluated and corrected.The actual vibration test of crankshaft under different conditions shows that the crankshaft torsional vibration can be well controlled when the natural frequency of the belt pulley is416Hz and428Hz.

关 键 词：发动机曲轴 扭转振动 实验研究 

分 类 号：TK417[动力工程及工程热物理—动力机械及工程]