CAJ | 학술논문

建立了A P1000立式循环泵机组的整机有限元模型，采用响应谱法针对循环泵在设计地震载荷工况下的强度及其动、静部件的变形位移进行了分析，并对该泵在设计地震载荷工况下的结构完整性和可运行性进行了评估。分析结果显示，该泵的1阶横向弯曲振动频率为14.4 Hz ，在单位水平激励载荷下，其前4阶振型在模型中的有效质量分数达0.94。在设计地震载荷工况下，作为主承压部件的泵体最大组合应力为203 M Pa ，叶轮室段壳体最大变形位移不超过1.5mm，转子部件最大组合应力为1.7MPa，最大变形位移为0.8mm，该系列响应值均在循环泵设计允许范围内，分析结果显示该泵能满足结构完整性和可运行性的要求。
건립료A P1000입식순배빙궤조적정궤유한원모형，채용향응보법침대순배빙재설계지진재하공황하적강도급기동、정부건적변형위이진행료분석，병대해빙재설계지진재하공황하적결구완정성화가운행성진행료평고。분석결과현시，해빙적1계횡향만곡진동빈솔위14.4 Hz ，재단위수평격려재하하，기전4계진형재모형중적유효질량분수체0.94。재설계지진재하공황하，작위주승압부건적빙체최대조합응력위203 M Pa ，협륜실단각체최대변형위이불초과1.5mm，전자부건최대조합응력위1.7MPa，최대변형위이위0.8mm，해계렬향응치균재순배빙설계윤허범위내，분석결과현시해빙능만족결구완정성화가운행성적요구。
The integrated definite element model of vertical circulation pump assembles in AP1000 was built .The static analysis and response spectrum analysis were used for normal design condition and design earthquake condition respectively , and the integrality and operability of pump were evaluated through strength and displacement analysis .The results demonstrate that the 1st lateral natural frequency of the pump is 14.4 Hz ,and the first 4 vibration mode shapes consist of an effective mass ratio of 0.94 in the model under a horizontal excitation load .At the design seismic load condition ,the max combination stress of pump case as the main pressure-bearing container is 203 M Pa ,the max displacement in impeller case is 1.5 mm ,the max combination stress of motor assemble is 1.7 M Pa ,and the max displacement of motor assemble is 0.8 mm , all these results are allowable in design . The analysis results demonstrate that the integrality and operability demands of pump are met in this design .