摘要
介绍了往复式压缩机气缸板式支撑的结构特点,总结了气缸支撑压杆稳定性的公式计算方法。对于公式计算方法中存在的偏差,应用有限元分析方法模拟计算,得出了支撑宽度修正系数和自由约束修正系数,经过修正的临界载荷计算公式更为准确。对采用有限元方法计算整列气缸刚度系数的方法也有所介绍,用以设置屈曲计算中的约束参数。采用ANSYS进行了气缸支撑的谐响应分析计算,用以模拟气缸支撑的稳定支撑作用。
The structural characteristics of compressor cylinder plate-type support are introduced.The formula calculating method for the stability of cylinder support is studied.The finite element method is also used.There is a deviation in the formula calculation method.Finite element analysis is used to obtain the support width correction coefficient and free constraint correction coefficient.The modified critical load calculation formula is more accurate.The method of calculating the stiffness coefficient of whole column cylinder by finite element analysis is studied.This coefficient is used to set the constraint parameters in the buckling calculation.ANSYS software is used to calculate the harmonic response analysis of cylinder support.
出处
《石油化工设备》
CAS
2018年第1期25-31,共7页
Petro-Chemical Equipment
关键词
往复式压缩机
板式支撑
压杆稳定
修正系数
有限元分析
reciprocating compressor
plate-type support
stability of columns
correction coefficient
finite element analysis
