| 周星德,杜成斌.一种能量与前馈杂交控制新方法[J].计算力学学报,2008,25(3):315~318 |
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码上扫一扫！ |
| 一种能量与前馈杂交控制新方法 |
| A new control approach combined energy with feed-forward gain |
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| DOI：10.7511/jslx20083061 |
| 中文关键词: 能量,前馈增益,作动器,建筑物 |
| 英文关键词:energy,feed-forward gain,actuators,buildings |
| 基金项目:江苏省六大人才高峰基金
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江苏省自然科学基金 |
| 周星德 杜成斌 |
| 河海大学工程力学系 江苏南京210098 |
| 摘要点击次数: 1327 |
| 全文下载次数: 8 |
| 中文摘要: |
| 振动能量大小可以反映结构振动控制的效果。为此,本文提出了一种简单的基于能量的振动控制策略,通过比较允许能量与实际能量来确定系统控制力的大小,利用能量导数来确定控制力的方向。同时,考虑到实际地震波的随机性,本文引入了前馈控制策略。通过附加前馈增益、状态方程离散及代换把两种控制方法有机地结合在一起。此外,直接引入前馈增益对控制系统的控制效果影响较小,为此本文提出了调整因子的概念。本文方法计算简单,操作方便。最后,以六层建筑物为例说明了本文方法的可行性。 |
| 英文摘要: |
| 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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