阀门执行器端盖设计及有限元分析  

Design and Finite Element Analysis of the Valve Actuator Cover

作　　者：王敏[1] 万长东[1] 田玉祥 苏振驰 WANG Min;WAN Chang-dong;TIAN Yu-xiang;SU Zhen-chi(School of Mechanical Engineering/Suzhou Vocational University,Suzhou 215104,China)

机构地区：[1]苏州市职业大学机电工程学院,江苏苏州215104

出　　处：《山东农业大学学报（自然科学版）》2020年第4期749-752,共4页Journal of Shandong Agricultural University：Natural Science Edition

基　　金：国家自然科学基金:结构周期性布局优化理论与方法研究(51605046);苏州市职业大学青年基金:基于ANSYS的齿轮啮合数值分析建模方法及其应用研究(SVU2018QN18);苏州市职业大学研究性课题:应用于阀门器的行星齿轮机构设计与分析(SZDYKC-190511)。

摘　　要：阀门执行器是工业控制中大量使用的用于阀门启闭的自动化器件,当其在爆炸极限工况下使用时,容器内产生的压力会使端盖产生变形,造成端盖的结构应力和变形分布不均,其中端盖厚度参数对其变形的影响尤为显著。本文通过公式计算和经验数据的数值缩比,对端盖厚度取2个极限值,利用有限元软件ANSYS对极限值区间内的不同端盖厚度进行静态受力分析,选取3 mm作为设计厚度。为更好地验证设计的合理性,对整个端盖进行建模和爆炸数值模拟,结果显示最大应力值小于端盖材料的抗拉强度255 MPa,端盖最大位移量小于1 mm,变化范围较小。结果表明,设计具有一定的可行性。Valve actuator is an automatic device which are widely used for valve opening and closing in the mine.When the valve actuator is used in the explosion limit condition,the pressure generated in the container will cause the cover to deform,resulting in uneven distribution of structural stress and deformation of the cover,and the influence of the cover thickness parameter on its deformation is more significant.Through the formula calculation and the numerical reduction of empirical data,the thickness of the end cover is taken as two limit values.The static stress analysis of the different cover thickness within the limit value range is carried out by using ANSYS finite element software,and 3mm is selected as the design thickness.In order to better verify the rationality of the design,modeling and numerical simulation of the whole cover are carried out.The numerical calculation results show that the maximum stress value is less than the tensile strength of the cover material of 255mpa,the maximum displacement of the end cover is less than 1mm,and the range of change is small.The results show that the design is feasible.

关 键 词：阀门执行器 端盖设计 有限元分析 

分 类 号：TS737.3[轻工技术与工程—制浆造纸工程] TH122[机械工程—机械设计及理论]