shell of pipe

The main parts bearing the loads, such as shell body, rotary assembly shell, center pipe and bearing pressing cover, have been carried through with finite element intension check using the structure module of the Pro/ E software.

采用Pro／E软件的有限元分析模块，对XK35-17型旋转控制头的主要受力部件壳体、旋转总成外壳、中心管和轴承压盖进行了有限元强度校核。

By analyzed interactions of combined limit pipe load components, simplified check formula for pipe load strength are put forward and the calculation method of relevant allowable pipe load values based on shell finite element analysis is presented as well.

通过对组合极限接管载荷分量相互关系的分析，提出了接管载荷强度验算简化公式和以壳结构有限元应力分析为基础的许用接管载荷计算方法。

Based on the line-spring shell model, J integral of circumferential and axial cracks in pipe elbows is calculated by EPRI method. Then by following the procedure of EPRI, F 1 function and h 1 function are given.

采用线弹簧壳体模型进行有限元计算求解含裂纹弯管的J积分，而后仿照EPRI方法的思路，给出了J估算式及其相关系数F1和h1。

YWH Filter is a high efficiency filter of new type, mainly made up of tank shell, liquor pump, valve box, pipe joint and the control system. The requirements to its manufacture process and quality control are very strict.

YWH型过滤器是一种高效率的新型过滤设备，主要由罐体、液化泵、阀体、管汇及其控制系统组成，制造工艺和质量控制要求严格。

Calculations of pipe end thrust ( moment) applied by tower top effluent pipe, the loads caused by temperature difference between axial and radial of tower shell, and between the connecting pipe and adjacent portion of tower shell are carried out.

对焦炭塔堵焦阀接管部位分别进行了在塔顶馏出管线所作用的管端推力（矩）以及塔体轴、径向温差和接管与塔体连接区域温差载荷下的应力计算。