双层柱面网壳采用粘滞阻尼器的减震参数分析
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摘要
研究了粘滞阻尼器对双层柱面网壳减震效果的主要影响参数和影响规律。通过考虑阻尼器不同的设置方式、设置位置和数量、阻尼系数,以及不同的网壳矢跨比,线性阻尼器与非线性阻尼器的比较等,进行了一系列减震参数分析。结果表明,替换方式优于附加方式,替换杆件的数量存在临界值,阻尼系数存在最优范围,网壳矢跨比的影响显著,非线性阻尼器和线性阻尼器的减震效果基本相同等。这些规律对实际工程应用具有一定的参考意义。
This paper studies primary parameters and action rules which influence the effect of vibration reduction by viscous damper on double-layer cylindrical latticed shell.By considering different setting manner,position and number,damping coefficient of damper,and different height vector span ratio of latticed shell and the comparison between linear damper and nonlinear damper,parametric analysis of vibration reduction was carried out.The results indicate that for the effect of vibration reduction replaceable manner is superior to appending manner,and the number and damping coefficient of damper have optimal values,the influence of height vector span ratio of latticed shell is significant.The nonlinear damper provides almost the same energy-dissipation level as linear damper.The conclusions drawn from this paper can be useful to practical engineering.
This paper studies primary parameters and action rules which influence the effect of vibration reduction by viscous damper on double-layer cylindrical latticed shell.By considering different setting manner,position and number,damping coefficient of damper,and different height vector span ratio of latticed shell and the comparison between linear damper and nonlinear damper,parametric analysis of vibration reduction was carried out.The results indicate that for the effect of vibration reduction replaceable manner is superior to appending manner,and the number and damping coefficient of damper have optimal values,the influence of height vector span ratio of latticed shell is significant.The nonlinear damper provides almost the same energy-dissipation level as linear damper.The conclusions drawn from this paper can be useful to practical engineering.
引文
[1]汤昱川,张玉良,张铜生.粘滞阻尼器减震结构的非线性动力分析[J].工程力学,2004,21(1):67-71.
[2]范峰,沈世钊.单层柱面网壳的粘滞阻尼器减振分析[J].世界地震工程,2003,19(2):27-32.
[3]梁海彤.双层柱面网壳减震控制理论和振动台试验研究[D].北京工业大学,2003.
[4]范峰,沈世钊.网壳结构的粘滞阻尼减振分析与试验研究[J].地震工程与工程振动,2000,20(1):105-111.
[5]薛素铎,曹资,王健宁.双层柱面网壳弹塑性抗震性能[J].工业建筑,2003,33(2):59-61.
[6]翁大根,卢著辉,徐斌,周红卫,夏.粘滞阻尼器力学性能试验研究[J].世界地震工程,2002,18(4):30-34.
[2]范峰,沈世钊.单层柱面网壳的粘滞阻尼器减振分析[J].世界地震工程,2003,19(2):27-32.
[3]梁海彤.双层柱面网壳减震控制理论和振动台试验研究[D].北京工业大学,2003.
[4]范峰,沈世钊.网壳结构的粘滞阻尼减振分析与试验研究[J].地震工程与工程振动,2000,20(1):105-111.
[5]薛素铎,曹资,王健宁.双层柱面网壳弹塑性抗震性能[J].工业建筑,2003,33(2):59-61.
[6]翁大根,卢著辉,徐斌,周红卫,夏.粘滞阻尼器力学性能试验研究[J].世界地震工程,2002,18(4):30-34.
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