基于有限元法的法兰工程设计软件开发

Development of Flange Design Software Based on Finite Element Method

为实现非标设备法兰的分析设计和优化设计,建立了整体法兰参数化有限元分析模型,根据Taylor-Waters法兰应力分析和压力容器分析设计中应力分类准则,给出了基于有限元法的法兰强度与刚度计算方法和校核判据,采用ANSYS参数化设计语言和VB编程工具,开发了基于有限元法的法兰工程设计软件CFFEA。应用该软件对某工程中的非标设备法兰进行了优化设计,优化结果符合ASMEⅧ-2-4.16的规定。

In order to achieve numerical analysis and optimal design of non-standard flanges,the parameterization finite element model of integral flanges was established and the stress classification criterion stipulated for Taylor-Waters flange stress analysis and the pressure vessel design were based to propose the finite element method-based calculation methods and check criteria.Through making use of ANSYS parametric design language and VB program,the CFFEA software for the design of non-standard flanges was developed.Applying it to optimize the design of non-standard flanges shows that,the optimization results comply with the regulations of ASME Ⅷ-2-4.16.