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| Dynamic optimization design of the turbine frame foundation using Kriging model |
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| DOI：10.7511/jslx20085116 |
| KeyWord:Kriging model,dynamic analysis,optimization design,sequential linear programming |
| GAO Yue-hua ZHANG Qi WANG Xi-cheng |
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| Abstract: |
| An effective optimization method using Kriging model is proposed to solve dynamic optimization design in this paper.The optimization problem is to find the design variable(the sizes variables and the co-ordinates of the nodes of the beams and columns) such that the maximal vibration amplitude is minimum and the structural weight plus certain side constraints are satisfied.Kriging model is used to establish the approximate functional relationship between the forced vibration amplitude and design variables,and avoiding the expensive sensitivity analysis.A dynamic analysis program is developed and used as black-box to obtain dynamic response.Numerical examples are given,and compared with sequential linear programming.The results show that the method has good accuracy and efficiency. |