桥梁减震半主动控制算法比较与分析
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摘要
总结了六种半主动控制算法,采用磁流变阻尼器,对一座大跨刚构-连续桥梁进行了半主动控制和主动控制地震反应分析,比较分析了半主动控制算法对地震反应控制效果的影响。结果表明,半主动控制和主动控制并不能使桥梁全部地震反应都能得到控制,而是使得桥梁部分地震反应减小,同时却放大另外部分地震反应;半主动最优bang-bang控制算法和最大开关控制算法的减震效果相对最好,且二者的控制效果非常接近;半主动界限滑动控制算法能够最好地跟踪主动控制的减震效果。
Six semi-active algorithm are summarized.The semi-active control and active control analysis of seismic responses for a longspan rigid-continuous bridge is performed,and the influences of the semi-active algorithms on the control effect of the seismic response are compared.The results indicate that semi-active control and active control can not make all the seismic responses of the bridge less.They make its some seismic responses reduced,but make its some other seismic responses larger.The vibration-suppressing effect of NO.2 and NO.3 semi-active algorithm is the best,and the control effects of the two algorithm are very close to each other.The NO.6 semi-active algorithm can follow active control well for suppressing the seismic responses of the bridge,and can almost approach the vibration-suppressing effect of active control.
Six semi-active algorithm are summarized.The semi-active control and active control analysis of seismic responses for a longspan rigid-continuous bridge is performed,and the influences of the semi-active algorithms on the control effect of the seismic response are compared.The results indicate that semi-active control and active control can not make all the seismic responses of the bridge less.They make its some seismic responses reduced,but make its some other seismic responses larger.The vibration-suppressing effect of NO.2 and NO.3 semi-active algorithm is the best,and the control effects of the two algorithm are very close to each other.The NO.6 semi-active algorithm can follow active control well for suppressing the seismic responses of the bridge,and can almost approach the vibration-suppressing effect of active control.
引文
1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范立础.桥梁抗震[M].上海:同济大学出版社,1997
3丁皓江,何福保,谢贻权,徐兴.弹性和塑性力学中的有限单元法[M].北京:机械工业出版社,1989
4胡聿贤.地震工程学[M].北京:地震出版社,1988
5隋莉莉,欧进萍.MR减振驱动器用于结构振动控制的算法研究.应用力学学报,2002,19(3):144—148
6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分析.世界地震工程,2003,19(1):37—43
7隋莉莉,王刚,欧进萍.基于加速度反馈的结构地震反应半主动MR阻尼控制试验.地震工程与工程振动,2002,22(6):89—95
8代泽兵,黄金枝,王红霞.基于智能阻尼器的大跨度斜拉桥多支承激励地震振动控制.振动与冲击,2005,24(2):66—70
9陆建辉,赵增奎,李宇生,刘玲.非平稳随机载荷下海洋平台振动半主动控制.振动与冲击,2004,23(3):107—110
10邹立华,赵人达.组合隔震结构的振动控制研究.振动与冲击,2005,24(2):80—83
2范立础.桥梁抗震[M].上海:同济大学出版社,1997
3丁皓江,何福保,谢贻权,徐兴.弹性和塑性力学中的有限单元法[M].北京:机械工业出版社,1989
4胡聿贤.地震工程学[M].北京:地震出版社,1988
5隋莉莉,欧进萍.MR减振驱动器用于结构振动控制的算法研究.应用力学学报,2002,19(3):144—148
6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分析.世界地震工程,2003,19(1):37—43
7隋莉莉,王刚,欧进萍.基于加速度反馈的结构地震反应半主动MR阻尼控制试验.地震工程与工程振动,2002,22(6):89—95
8代泽兵,黄金枝,王红霞.基于智能阻尼器的大跨度斜拉桥多支承激励地震振动控制.振动与冲击,2005,24(2):66—70
9陆建辉,赵增奎,李宇生,刘玲.非平稳随机载荷下海洋平台振动半主动控制.振动与冲击,2004,23(3):107—110
10邹立华,赵人达.组合隔震结构的振动控制研究.振动与冲击,2005,24(2):80—83
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