Approximate Weight Analysis Of The Dynamic Response And Sensitivity Of The Turbine Base Frame Structure Design, Multi-objective Optimization

It spends much time to make an analysis of dynamic response and sensitivities with modal superposition method, and it reduces the efficiency of dynamic optimization design via this method . In this paper, a new method is presented to resolve the problem. By approximating repeated analysis based on the last time' s response and sensitivities.This paper gives the approximate response expression and its sensitivities under the presence of Solokin' s dumping. In allusion to the plural style of response and its sensitivities ,the base vector is supposed complex style. Numerical results show that the designs in the examples of turbine engine frame foundation is very good. In addition, the variable' s and disturbing load' s influences are discussed.For practical problem, the QJDU-C program(C language ) is developed and improved , such as adding preceding , posterior disposal module and structure mode export tool.