隔减震结构中黏弹性阻尼装置的遗传算法优化分析
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摘要
研究了基于遗传算法的粘弹性阻尼装置在结构隔减震控制中的多参数并行优化问题.同时考虑了粘弹性阻尼装置的材料性能和形状尺寸参数的组合优化,从性价比的角度提出了目标优化函数,建立了粘弹性阻尼装置参数的优化模型.以单自由度隔震结构体系为例,采用遗传算法对其进行优化分析.结果表明:在结构和造价的双重预期目标下,通过遗传算法优化分析得到,加入粘弹性阻尼装置后,结构的位移和加速度都达到了预期的效果,同时也表明遗传算法在用于多个组合参数的优化设计时是可行且有效的.
Parametric combinatorial optimization of viscoelastic device in earthquake isolation and mitigation of structures is investigated in this paper.Based on the balance between structural performance and construction cost,an objective function for optimization is set up,and a parametric optimization model considering parameters on both material property and shape for viscoelastic device is developed.The genetic algorithms method is used to complete the parametric optimization of a isolation model with single degree of freedom.The numerical results show that the goals of anticipated parametric optimization are achieved when viscoelastic device is installed in structures,and the effective performance of combinatorial optimization by using genetic algorithms is proved.
Parametric combinatorial optimization of viscoelastic device in earthquake isolation and mitigation of structures is investigated in this paper.Based on the balance between structural performance and construction cost,an objective function for optimization is set up,and a parametric optimization model considering parameters on both material property and shape for viscoelastic device is developed.The genetic algorithms method is used to complete the parametric optimization of a isolation model with single degree of freedom.The numerical results show that the goals of anticipated parametric optimization are achieved when viscoelastic device is installed in structures,and the effective performance of combinatorial optimization by using genetic algorithms is proved.
引文
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[3]Liu D K,Yang Y L,Li Q S.Optimum positioning ofactuators in tall buildings using genetic algorithm[J].Computer&Structures,2003,81(32):2823-2827.
[4]Singh M P,Moreschi L M.Optimal placement ofdamper for passive response control[J].Earthquake En-gineering and Structural Dynamics,2002,31(4):955-976.
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[6]凌和海,薛素铎,庄鹏.减震结构中的粘弹性阻尼器参数优化[J].世界地震工程,2005,21(3):126-130.Ling Hehai,Xue Suduo,Zhuang Peng.Parametric opti-mization of viscoelastic dampers in vibration control ofstructures[J].World Information on Earthquake Engi-neering,2005,21(3):126-130.(in Chinese)
[7]中华人民共和国建设部.GB50011—2001建筑抗震设计规范[S].北京:中国建筑工业出版社,2002.
[8]Holland J H.Adaptation in natural and artificial sys-tems[M].AnnArbor,Michigan:University of Michi-gan Press,1975:60-100.
[9]Kwon Y D,Kwon S B,Jin S B,et al.Convergenceenhanced genetic algorithm with successive zoomingmethod for solving continuous optimization problems[J].Computers and Structures,2003,81(1):1715-1725.
[10]雷英杰,张善文,李续武,等.MATLAB遗传算法工具箱及其应用[M].西安:西安电子科技大学出版社,2005:146-207.
[2]周晓峰,陈福江,董石麟.粘弹性阻尼材料装置在网壳结构减震控制中性能研究[J].空间结构,2000,6(4):21-27.Zhou Xiaofeng,Chen Fujiang,Dong Shilin.Analysison properties of viscoelastic bearing under the earth-quake excitation[J].Spatial Structures,2000,6(4):21-27.(in Chinese)
[3]Liu D K,Yang Y L,Li Q S.Optimum positioning ofactuators in tall buildings using genetic algorithm[J].Computer&Structures,2003,81(32):2823-2827.
[4]Singh M P,Moreschi L M.Optimal placement ofdamper for passive response control[J].Earthquake En-gineering and Structural Dynamics,2002,31(4):955-976.
[5]徐赵东,周云,赵鸿铁.粘弹性阻尼结构的优化设计方法[J].西安建筑科技大学学报,1999,31(3):246-252.Xu Zhaodong,Zhou Yun,Zhao Hongtie.Optimum de-sign method of the viscoelastic structure[J].Journal ofXian University of Architecture&Technology,1999,31(3):246-252.(in Chinese)
[6]凌和海,薛素铎,庄鹏.减震结构中的粘弹性阻尼器参数优化[J].世界地震工程,2005,21(3):126-130.Ling Hehai,Xue Suduo,Zhuang Peng.Parametric opti-mization of viscoelastic dampers in vibration control ofstructures[J].World Information on Earthquake Engi-neering,2005,21(3):126-130.(in Chinese)
[7]中华人民共和国建设部.GB50011—2001建筑抗震设计规范[S].北京:中国建筑工业出版社,2002.
[8]Holland J H.Adaptation in natural and artificial sys-tems[M].AnnArbor,Michigan:University of Michi-gan Press,1975:60-100.
[9]Kwon Y D,Kwon S B,Jin S B,et al.Convergenceenhanced genetic algorithm with successive zoomingmethod for solving continuous optimization problems[J].Computers and Structures,2003,81(1):1715-1725.
[10]雷英杰,张善文,李续武,等.MATLAB遗传算法工具箱及其应用[M].西安:西安电子科技大学出版社,2005:146-207.
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