【摘要】 本文叙述了核电站蒸汽发生器一次侧整体(包括下封头、进出水接管、人孔、水室隔板、管板、部分二次侧筒体)及管板,在内压和接管载荷作用下的三维有限元应力分析。得出一次侧各部件相互间的影响,管板的孔桥应力和孔达峰值应力。计算结果与轴对称有限元应力分析作了比较。对关键部位按ASME规范第Ⅲ篇的应力强度极限作了评价。更多还原

【Abstract】 This report presents the results of a tridimensional finite element stress analysis of primary side aiad tube-sheet of a PWR steam generator.lt is subjected to internal pressure load and external load at the safe-end of the nozzle. The interacted eff.ect of different components,maximum peak stress and minimum ligament stress of tube-sheet were obtained. The results of this tridimensional calculation are compared with results of axisymmetrical finite element analysis. At major locations the results have been evaluated in compliance with stress-limits of AMSE code section III.更多还原