核岛双闸板闸阀振动特性的数值模拟

介绍了核安全级阀门振动特性计算在动力学分析与核安全评审中的重要作用,阐述了采用有限元分析法进行产品振动特性分析的实用性,讨论了采用三维有限元分析软件进行核安全级阀门振动特性数值模拟的基本思想和过程.同时,根据核岛核安全级平行式双闸板闸阀产品的设计数据建立三维计算模型,用三维有限元计算方法,对阀门装配整体进行计算,处理了接触面并解决了计算量和精度的矛盾,所得阀门前6阶固有频率是阀门抗震计算的重要基础.

Numerical simulation of vibration performance for nuclear safety-related parallel sluice valve

On nuclear safety-valve vibration characteristics of the process of conducting dynamic analy- sis of nuclear safety and the important role of the assessment described using finite element analysis product vibration analysis of the practicality of technology,discussed the use of three-dimensional finite element analysis software-class nuclear safety valve vibration analysis of the basic idea and process.Ac- cording nuclear island parallel plate sluice valve design data to establish a three-dimensional model using 3-D finite element calculation method,according to a valve assembly,the proper handling of the con- tact surface and address computation and accuracy of contradictions,valves derived from the natural frequency of the former six bands is an important basis for calculating seismic valves.