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| Optimization in active vibration control of random intelligent truss structure under stationary random excitation |
| Revised:December 18, 2002 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx20045112 |
| KeyWord:stationary random excitation,random intelligent truss structures,reliability constraints feedback gains,optimization |
| Gao Wei~ |
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| Abstract: |
| The problems of the optimization of active bars' placement and feedback gains of closed loop control system for random intelligent truss structures under stationary random excitation are studied in this paper. Based on the minimal energy stored in the structures, the optimal mathematical model with the reliability constraints on the mean square value of structural dynamic displacement and stress response are constructed. In which not only the randomness of the physical parameters of structural materials, geometric dimensions and damping are considered simultaneously, but also the applied force are taken as stationary random excitation. Then the numerical characteristics of the stationary random response of random intelligent structure are developed. Through the example, the rationality and validity of the present model are demonstrated and some useful conclusions are obtained. |
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