Structure Optimization on Sensitivity Analysis for Ultra-supercritical Bypass Valve
Given mathematics model and boundary conditions of the structure optimization for ultra-supercritical bypass valve (UBV) in operation.FEM results showed that 10 design variables and 178 sampling points are chosen for iteration,and the relationship between maximum equivalent stress and structure parameters are obtained by sensitivity analysis.By using Monte-Carlo method,the quantity of optimized sampling point can be reduced by 17% and calculation time is reduced clearly.The higher sensitivity parameters affecting target function are found by contrasting response degree,and improving the parameters directly is the way that enhances intensity of the UBV.Base on the sensitivity analysis,the linearized equivalent stress of weak place in the UBV can be reduced by 44% with the safety performance enhanced.
Ultra-supercritical Sensitivity analysis Optimization Monte-Carlo method
Long Yu Shu Rong Yu
Lanzhou University of Technology, Lanzhou 730050, China
国际会议
辽宁葫芦岛
英文
282-285
2012-08-07（万方平台首次上网日期，不代表论文的发表时间）