噪声与振动控制2019，Vol.39Issue(1)：56-59,109,5.DOI:10.3969/j.issn.1006-1355.2019.01.011
发动机气门弹簧工艺参数调整
Process Parameter Adjustment of Engine Valve Springs
摘要
Abstract
During the manufacturing process of valve springs, the spring pitch can greatly affect the free length of the spring and thus the performance of the valve spring. In this paper, according to the actual valve spring pitch and coil number, a mathematical model of the valve spring is established by means of CATIA to determine the relationship among the spring free length, pitch and the number of coils. Based on the ABAQUS platform, the static spring finite element simulation analysis and pre-stressing modal analysis of the valve spring model with different amount of tolerance are carried out with a standard spring as the mechanics foundation. It is shown from the simulation results that the increase of absolute value of free length deviation will cause the change of Mises stress, maximum shear stress and the first order modal of the valve spring. Compared with standard model, the deviation limitation should be below 2.5 mm, to ensure that the stress difference between the standard model and the deviation model is lower than 10 ％. Thus, the preset 2.0 mm manufacture deviation is sound for manufacturing quality control.关键词
振动与波/气门弹簧/节距/自由长度偏差/有限单元Key words
vibration and wave/valve spring/pitch length/free length deviation/FEM分类
交通工程引用本文复制引用
黄伟松,陈浩,蔡丽红,杨书伟,王以鹏..发动机气门弹簧工艺参数调整[J].噪声与振动控制,2019,39(1):56-59,109,5.基金项目
上海市自然基金资助项目(18ZR1416500) （18ZR1416500）
