某直列四缸柴油机振动仿真分析与试验验证  

Vibration Simulation and Test Verification of In-line Four-cylinder Diesel Engine

作　　者：李贵[1] 朱敬安[1] 陈洪涛[1] 王志鹏[1] 

机构地区：[1]洛阳拖拉机研究所有限公司,拖拉机动力系统国家重点实验室,河南洛阳471039

出　　处：《拖拉机与农用运输车》2016年第6期54-57,共4页Tractor & Farm Transporter

摘　　要：以某四缸柴油机为研究对象,建立整机有限元模型并通过模态试验校正曲轴和缸体有限元模型,运用AVL-Excite Power Unit多体动力学软件对该柴油机进行振动响应分析。振动和噪声预测结果与试验结果对比表明,该方法具有较高的精度,可以满足工程应用的需要,为柴油机结构辐射噪声的声学优化奠定了基础。With a 4-cylinder diesel engine as the research object,the vibration response of an engine was analyzed by muhi-body dynamics software of AVL Excite PowerUnit. In order to verify the correctness of FE （Finite Element） model, modal test analysis of the crankshaft and engine cylinder block was carried out. And then vibration simulation result was acquired and compared with the experimental result. The results show that this simulation method has the advantage of high precision, meets the requirements of engineering application, and which can establish a good foundation for acoustic optimization of diesel engine.

关 键 词：柴油机 多体动力学 振动仿真 

分 类 号：TK421[动力工程及工程热物理—动力机械及工程]