U型波纹管的扭转刚度计算  

Calculation of Torsional Stiffness of U-shaped Bellows

作　　者：吕晨亮[1] 于建国[1] 叶庆泰[1] 

机构地区：[1]上海交通大学机械与动力工程学院,上海200030

出　　处：《机械科学与技术》2003年第S2期121-122,125,共3页Mechanical Science and Technology for Aerospace Engineering

摘　　要：就EJMA标准关于U型波纹管扭转刚度的计算公式进行探讨。用钱伟长关于旋转壳扭转刚度的积分公式给出了U型波纹管扭转刚度妁计算公式,分析了EJMA标准计算出的扭转刚度较小的原因,并就其公式建议提出修改,用新的等效半径来代替EJMA的等效半径可以得到满足工程计算精度要求的简化公式。所有结果都通过有限元分析来验证。EJMA formula for torsional stiffness of U-shaped bellows is discussed. A new formula for torsional stiffness of U-shaped bellows is deduced based on Chien's integration method for revolutional shell. It is analyzed why the results from the EJMA standards are a little low, and suggested to revise EJMA formula by using a new equivalent radius to substitute the old one. Such a revision is very simple, but it can satisfy engineering computing. All the results are validated by finite element analysis (FEA).

关 键 词：波纹管 扭转刚度 

分 类 号：TH703.2[机械工程—仪器科学与技术]