【作者】 曹贻鹏； 郑大远； 张文平；

【Author】 Cao Yipeng;Zheng Dayuan;Zhang Wenping;

【机构】 哈尔滨工程大学动力与能源工程学院；

【摘要】 基于动力学方法得出传递到内燃机缸盖、缸套和主轴承上的激励力,通过瞬态分析获得整机在一个工作周期下其表面振动动态响应结果并进行分析。结果表明,内燃机表面不同位置处节点的振动反映了多缸机的发火顺序和各缸发火的影响程度。利用振动烈度评价经由汽缸盖、汽缸套和主轴承三条路径传递内部激励的能力:汽缸盖是传递能量最主要的途径,主轴承次之,汽缸套最小。更多还原

【Abstract】 The excitation forces load on cylinder heads,cylinder liners and main bearings are calculated base on dynamics.The result of surface vibration in one working cycle is gained to analyze different node’s vibration,from which it can be concluded that the node displacements reflect the cylinder pressure and the influence of different cylinder.The transfer path of energy is evaluated by vibration intensity level.The results show that cylinder heads transfer the most energy,while main bearings transfer the less and cylinder liners transfer the least.更多还原