The assembly pressure of circular tubes with different lengths was calculated with finite element method,the diagram of assembly pressure was drawn,and the variation of assembly pressure of structure for different parameters was studied.

• 利用有限元法对非等长度组合厚壁圆筒装配压力进行了计算，得到了装配压力的分布曲线，找出了装配压力随各参数的变化规律。