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| Decentralized robust control of building structure based on sliding mode theory |
| Received:February 27, 2013 Revised:June 22, 2013 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx201404011 |
| KeyWord:large scale systems decentralized control sliding mode control robust stability seismic response |
| Author | Institution |
| 董钢 |
合肥工业大学 土木与水利工程学院, 合肥 |
| 王建国 |
合肥工业大学 土木与水利工程学院, 合肥 |
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| Abstract: |
| A decentralized robust control method was investigated and developed for large scale building structure.Based on large systems control theory, higher order structural system was decomposed into substructures.The interaction of subsystems and seismic disturbance were conducted as bounded generalized force acting on the subsystem and substructure model was established in the form of state equation.Taking advantage of anti-perturbation conditions of sliding mode theory, an overall stability sliding mode trajectory was designed.The control condition, which satisfies the global stability only using local state of substructure system, was analyzed and every substructure was regulated with parameter.Then the decentralized robust control algorithm was formulated.At the same time, the pseud-sliding mode control method was used to overcome the chattering of variable structure sliding mode.The effectiveness of the proposed method was demonstrated by the numerical simulation of a 20-story steel structure under seismic excitations. |