【摘要】 对工程实际中所遇到的典型单平面Ｚ型管段及两平面空间Ｚ型管段中所布置的波纹管膨胀节的变形状态进行了分析，并通过代数和几何方法求出了各波纹管膨胀节的变形精确解。通过实例，将精确解的计算结果与近似解的计算结果进行了比较。更多还原

【Abstract】 This thesis,analyxes the movement of bellows expansion joints in a typical single-plane“Z”bend and a multi-plane system often used in practice. The accurate movement in edch case is calculated through al- gebraic and geometric method.The calculating results of the accurate solution are compared with those of ap-proximative solution through examples.更多还原