基于虚拟样机的柴油机主轴径轴承动力学特性研究  

A Study of the Dynamics of a Diesel Engine′s Journal Bearings Based on Virtual Prototype

作　　者：李明海[1] 王鹏[1] 牟恕宽[2] 李昂[3] 

机构地区：[1]大连交通大学,大连116028 [2]大连机车车辆有限公司,大连116021 [3]清华大学,北京100084

出　　处：《机械科学与技术》2008年第7期959-962,共4页Mechanical Science and Technology for Aerospace Engineering

摘　　要：主要以建立柴油机动力学虚拟样机为目的,使用内燃机动力学模拟软件GT-CRANK对铁路机车16V240ZJ型柴油机进行动力学建模,对比在不同的边界条件下,其各主轴径轴承的油膜厚度、轴心轨迹等特性的变化规律,进而确定相对较好的设计参数,为机车柴油机的改进设计提供依据。Abstract： Our purpose is to establish a virtual prototype model of the 16V240ZJ diesel engine. We first build its dynamics model by software GT-CRANK. Then, we analyze its dynamic performances, such as minimum film thickness, journal orbit and power loss under different eases, without considering the influence of air-pressure force, friction resistance, and the load acting on the cranktrain. Finally, comparisons are made to choose the most suitable parameters for improving the performances of the diesel engine.

关 键 词：柴油机 虚拟样机 动力学 GT-CRANK 

分 类 号：U262.11[机械工程—车辆工程]