基于AFSMC算法的结构非线性振动MR控制与仿真分析
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摘要
作为最近发展起来的高性能半主动控制装置,磁流变阻尼器通过改变磁场强度来调节控制力,可靠度高,体积小,出力大,并且具有Fail-Safe的特点,是一种具有广泛应用前景的新型结构控制装置。本文主要研究结构非线性振动的磁流变阻尼半主动控制。首先采用我们提出的自适应模糊滑模控制(AFSMC)算法得到了结构非线性振动的主动控制力,然后参照主动控制力,提出和仿真实现了结构非线性振动的磁流变阻尼半主动控制。最后,针对3层和20层benchm ark非线性模型,每层均设置一个磁流变阻尼器,对在给定的地震动下的结构响应进行了计算,分析了半主动控制跟踪主动控制的效果,并且对于半主动控制下的结构位移响应、加速度响应等各项指标也进行了对比分析。仿真结果表明,由于自适应模糊滑模控制算法与半主动控制算法相结合可以很好地实现结构非线性振动的半主动控制,所以能够得到令人满意的控制结果。
Magnetorheological(MR) dampers are new semi-active control devices in which the damping forces are controlled by magnetic field.Besides its lower-power requirement,the MR damper is reliable,Fail-Safe,and relatively inexpensive.In this paper,the semi-active control is applied to the nonlinear structure through the MR damper.At first,the active control force is computed by the adaptive fuzzy sliding-mode control algorithm.Secondly,considering the possibility that the MR damper can carry out the active force,the simulation is made on the 3-story frame model and 20-story frame model,which is referred to as the third generation benchmark model.The control force is applied to each floor through MR damper.It is emphasized that the semi-active control force offered by the MR fluid damper can control the damping force and make itself follow the active control force.The seismic responses of the nonlinear structure are also analyzed.The result shows that because the adaptive fuzzy sliding-mode control algorithm is very suitable for semi-active control,the control effect is satisfied.
Magnetorheological(MR) dampers are new semi-active control devices in which the damping forces are controlled by magnetic field.Besides its lower-power requirement,the MR damper is reliable,Fail-Safe,and relatively inexpensive.In this paper,the semi-active control is applied to the nonlinear structure through the MR damper.At first,the active control force is computed by the adaptive fuzzy sliding-mode control algorithm.Secondly,considering the possibility that the MR damper can carry out the active force,the simulation is made on the 3-story frame model and 20-story frame model,which is referred to as the third generation benchmark model.The control force is applied to each floor through MR damper.It is emphasized that the semi-active control force offered by the MR fluid damper can control the damping force and make itself follow the active control force.The seismic responses of the nonlinear structure are also analyzed.The result shows that because the adaptive fuzzy sliding-mode control algorithm is very suitable for semi-active control,the control effect is satisfied.
引文
[1]孙清,张可,周进雄.新型磁流变阻尼器及其在结构振动半主动控制中的应用[J].西安交通大学学报,2003,37(1):92~95.
[2]Spencer B F,Dyke S J,SainM K,et al.Dynam icalmodel of a magnetorheological damper[C].Proceed ings of Structures Congress X IV,ASCE,Ch icago,IL,USA,1996.361~370.
[3]Carlson J D,Spencer B F.Magneto-Rheological flu id dampers for sem i-active seism ic control[C].Proceed ings of Th ird International Confer-ence on Motion and V ibration Control,Ch iba,Japan,1996.35~40.
[4]Carlson J D,Spencer B F.Magneto-Rheological flu id dampers:scalab ility and design issues for application to dynam ic hazard m itigation[C].Proceed ings of Second InternationalW orkshop on Structural Control,Hong Kong,1996.99~109.
[5]Dyke S J,Spencer B F Jr,Carlson J D,Modeling and control ofmagnetorheological dampers for seism ic response reduction[J].SmartMater.Struct.1996,5(5):565~575.
[6]欧进萍,关新春.磁流变耗能器的性能试验研究[J].地震工程与工程振动,1999,19(4):76~81.
[7]L i Zhou,Chang Ch ih Chen,W ang L iX in.Adaptive fuzzy control for non linear bu ild ing-magnetorheological damper system[J].Journal of Struc-tural Engineering,2003,129(7):905~913.
[8]张春巍,欧进萍.结构磁流变阻尼半主动控制的改进算法与仿真研究[J].世界地震工程,2003,19(1):37~43.
[9]Ohtori Y,Christenson R E,Spencer Jr B F,et al.Benchmark control prob lem s for seism ically excited non linear bu ild ings[J].Journal of Engi-neeringM echan ics.2004,130(4):366~385.
[10]Casciati F,Faravelli L,Yao T.Control ofNon linear StructuresUsing the Fuzzy ControlApproach[Z].Non linearDynam ics,1996,11(2):171~187.
[11]屈文忠,邱阳,张陵.非线性振动一种稳定的模糊控制方法研究[J].应用力学学报,1999,16(1):88~93.
[12]王声远,霍伟.一种新的自适应模糊控制器的设计方法[J].北京航空航天大学学报,2001,27(2):226~229.
[13]高为炳.变结构控制的理论及设计方法[M].北京:科学出版社,1996.
[14]王立新.模糊系统与模糊控制教程[M].北京:清华大学出版社,2003.
[15]欧进萍.结构振动控制──主动、半主动和智能控制[M].北京:科学出版社,2003.
[2]Spencer B F,Dyke S J,SainM K,et al.Dynam icalmodel of a magnetorheological damper[C].Proceed ings of Structures Congress X IV,ASCE,Ch icago,IL,USA,1996.361~370.
[3]Carlson J D,Spencer B F.Magneto-Rheological flu id dampers for sem i-active seism ic control[C].Proceed ings of Th ird International Confer-ence on Motion and V ibration Control,Ch iba,Japan,1996.35~40.
[4]Carlson J D,Spencer B F.Magneto-Rheological flu id dampers:scalab ility and design issues for application to dynam ic hazard m itigation[C].Proceed ings of Second InternationalW orkshop on Structural Control,Hong Kong,1996.99~109.
[5]Dyke S J,Spencer B F Jr,Carlson J D,Modeling and control ofmagnetorheological dampers for seism ic response reduction[J].SmartMater.Struct.1996,5(5):565~575.
[6]欧进萍,关新春.磁流变耗能器的性能试验研究[J].地震工程与工程振动,1999,19(4):76~81.
[7]L i Zhou,Chang Ch ih Chen,W ang L iX in.Adaptive fuzzy control for non linear bu ild ing-magnetorheological damper system[J].Journal of Struc-tural Engineering,2003,129(7):905~913.
[8]张春巍,欧进萍.结构磁流变阻尼半主动控制的改进算法与仿真研究[J].世界地震工程,2003,19(1):37~43.
[9]Ohtori Y,Christenson R E,Spencer Jr B F,et al.Benchmark control prob lem s for seism ically excited non linear bu ild ings[J].Journal of Engi-neeringM echan ics.2004,130(4):366~385.
[10]Casciati F,Faravelli L,Yao T.Control ofNon linear StructuresUsing the Fuzzy ControlApproach[Z].Non linearDynam ics,1996,11(2):171~187.
[11]屈文忠,邱阳,张陵.非线性振动一种稳定的模糊控制方法研究[J].应用力学学报,1999,16(1):88~93.
[12]王声远,霍伟.一种新的自适应模糊控制器的设计方法[J].北京航空航天大学学报,2001,27(2):226~229.
[13]高为炳.变结构控制的理论及设计方法[M].北京:科学出版社,1996.
[14]王立新.模糊系统与模糊控制教程[M].北京:清华大学出版社,2003.
[15]欧进萍.结构振动控制──主动、半主动和智能控制[M].北京:科学出版社,2003.
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