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| A new control approach combined energy with feed-forward gain |
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| DOI：10.7511/jslx20083061 |
| KeyWord:energy,feed-forward gain,actuators,buildings |
| ZHOU Xing-de DU Cheng-bin |
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| Abstract: |
| The structural vibration control effect can be reflected by its vibration energy.In the paper,a simple vibration control strategy based on energy is proposed,in which the amplitude of control forces were solved by comparing structurally allowable energy with actual energy,the direction of them were located according to the derivation of structural energy.Meanwhile,when considering the randomicity of earthquake,the feed-forward control method was introduced in this paper.The two control ways were organically linked together by way of added feedforward gain,discrete state equation and substitution.Again,as the improvement of the control effect was small if the feed-forward gain is adopted directly,a concept of adjustment factor was presented.The proposed approach have the characteristic of simple calculation and feasible operation.At last,a example of 6-storey building was used to illustrate the feasibility of the proposed method. |
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