摘要
对某发动机气门机构建立了混合刚体-弹性体的参数化非线性有限元模型,进行了弹性动力学计算。通过回归方程对模型进行了优化,降低了摇臂的质量,在保证摇臂强度的同时改善了凸轮-滚子的接触性能,从而降低了磨损,提高了耐久性。
An elastic-dynamic analysis of a valve train is carried with parametric nonlinear rigid-flexible FEM mode, and then the mode is optimized by regression equation. As a result, the mass of the lever is reduced, and the contact performance between cam and roller is improved when the strength of the lever is safe at the same time, so the fatigue durability is improved and the wear of cam and roller decreased.
出处
《柴油机设计与制造》
2012年第4期7-14,共8页
Design and Manufacture of Diesel Engine
关键词
气门机构
有限元法
弹性动力
回归优化
valve train, FEM, elastic-dynamic, regression optimization
