大吨位双出杆粘滞阻尼器开发的数值模拟与实验研究
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摘要
阐述了大吨位双出杆粘滞阻尼器开发的数值与实验研究结果。基于硅油的幂律特性,通过对硅油介质的流态分析,介绍了非牛顿幂律流体模型对粘滞阻尼器耗能和阻尼出力的影响,与粘滞阻尼器的分析模型和计算公式。在商用流体软件平台上利用动网格技术对样品粘滞阻尼器阻尼出力进行了计算;综合实验研究结果,最终确定了大吨位土木用粘滞阻尼器设计的经验方法。另一方面,实验曲线和数值曲线基本吻和,验证了通过数值手段对粘滞阻尼器的出力特性进行预分析,从而提高开发精度、指导产品设计和缩短产品的开发周期的可行性。
Large-tonnage-damping-force bi-directional-cylinder viscous fluid dampers was studied experimentally and numerically.Based on the power-law characteristic of silicone oil,the flow pattern of silicone oil was analyzed,the non-Newtonian fluid power-law model's influence on the energy dissipation characteristic and the damping force of viscous dampers was discussed,and the calculation formulas were presented.The damping force of the viscous damper samples was simulated by professional CFD software based on the moving mesh technology;Based on comprehensive analysis of results,the experiential design method of large-tonnage-damping-force viscous fluid dampers was finally established.Comparison shows that,the numerical curves are in good agreement with experimental curves,which validates the feasibility of numerical method of preliminary design of the large-tonnage-damping-force bi-directional-cylinder viscous fluid dampers.The numerical method helps to enhance the engineering precision,guide the design,and shorten the development cycle.
Large-tonnage-damping-force bi-directional-cylinder viscous fluid dampers was studied experimentally and numerically.Based on the power-law characteristic of silicone oil,the flow pattern of silicone oil was analyzed,the non-Newtonian fluid power-law model's influence on the energy dissipation characteristic and the damping force of viscous dampers was discussed,and the calculation formulas were presented.The damping force of the viscous damper samples was simulated by professional CFD software based on the moving mesh technology;Based on comprehensive analysis of results,the experiential design method of large-tonnage-damping-force viscous fluid dampers was finally established.Comparison shows that,the numerical curves are in good agreement with experimental curves,which validates the feasibility of numerical method of preliminary design of the large-tonnage-damping-force bi-directional-cylinder viscous fluid dampers.The numerical method helps to enhance the engineering precision,guide the design,and shorten the development cycle.
引文
[1]Highway Innovative Technology Evaluation Center(HITEC)of A Service center of the Civil Engineering Research[R].
[2]ASCE 7-05 Minimum Design Loads for buildings and other structures[S].
[3]李波,赵均海,梁兴文.附加粘滞阻尼器结构基于的抗震设计[J].世界地震工程.2009,25(2):91-96.Li B,Zhao J H,Liang X W.Performance-based seismic design of a structure with supplemental viscous dampers[J].World Information onEarthquake Engineering.2009,25(2):91-96.
[4]贾九红,沈小要,杜俭业,汪玉等.粘性流体阻尼器的设计与试验[J].机械工程学报.2008,44(6):194-198Jia J H,Shen X Y,Du J Y,et al.Design and experimental research on fluid viscous dampers[J].Chinese Journal of Mechanical Engineering.2008,44(6):194-198.
[5]陈永祁,马良喆.苏通长江大桥限位阻尼器的设计和测试[J].现代交通技术.2008,5(4):20-24.Chen Y Q,Ma L Z.Design and evaluation of limited displacement damper of sutong yangtze river bridge[J].Modern Transportation Technology.2008,5(4):20-24.
[6]沈崇棠,刘鹤年.非牛顿流体力学及其应用[M].北京:高等教育出版社,1989.Shen C T,Liu H N.Non-newtonian fluid mechanics and it’s application[M].Beijing:Higher Education Press,1989.
[7]刘军龙.结构液压被动耗能与直驱主动控制系统[D].哈尔滨:哈尔滨工业大学,2009.Liu J L.Structural hydraulic passive energy dissipation and direct driving active control systems[D].Harbin:Harbin Institute of Technology,2009.
[8]周云.粘滞阻尼减震结构设计[M].武汉:武汉理工大学出版社,2006:12-16,87-107.Zhou Y.Design of absorbing structure with viscous damping[M].Wuhan:Wuhan University of Technology Press,2006:12-16,87-107.
[9]丁建华,欧进萍.油缸式孔隙式粘滞阻尼器理论与性能试验[J].世界地震工程.2001,17(1):30-35.Ding J H,Ou J P.Theoretical study and performance experiment for cylinder-with-holes viscous damper[J].World Information on EarthquakeEngineering.2001,17(1):30-35.
[10]陈永祁,耿瑞琦,马良喆.桥梁用液体黏滞阻尼器的减振设计和类型选择[J].土木工程学报.2007,40(7):55-61.Chen Y Q,Geng R Q,Ma L Z.Design and selection of fluid viscous devices for shock control of bridges[J].China Civil Engineering Journal.2001,17(1):30-35.
[11]周建兴,岂兴明,矫津毅,等.MATLAB从入门到精通[M].北京:人民邮电出版社,2008:196-208.Zhou J X,Qi X M,Jiao J Y,et al.MATLAB-From novice to rrofessional[M].Beijing:People’s Posts&Telecommunications PublishingHouse,2008:196-208.
[2]ASCE 7-05 Minimum Design Loads for buildings and other structures[S].
[3]李波,赵均海,梁兴文.附加粘滞阻尼器结构基于的抗震设计[J].世界地震工程.2009,25(2):91-96.Li B,Zhao J H,Liang X W.Performance-based seismic design of a structure with supplemental viscous dampers[J].World Information onEarthquake Engineering.2009,25(2):91-96.
[4]贾九红,沈小要,杜俭业,汪玉等.粘性流体阻尼器的设计与试验[J].机械工程学报.2008,44(6):194-198Jia J H,Shen X Y,Du J Y,et al.Design and experimental research on fluid viscous dampers[J].Chinese Journal of Mechanical Engineering.2008,44(6):194-198.
[5]陈永祁,马良喆.苏通长江大桥限位阻尼器的设计和测试[J].现代交通技术.2008,5(4):20-24.Chen Y Q,Ma L Z.Design and evaluation of limited displacement damper of sutong yangtze river bridge[J].Modern Transportation Technology.2008,5(4):20-24.
[6]沈崇棠,刘鹤年.非牛顿流体力学及其应用[M].北京:高等教育出版社,1989.Shen C T,Liu H N.Non-newtonian fluid mechanics and it’s application[M].Beijing:Higher Education Press,1989.
[7]刘军龙.结构液压被动耗能与直驱主动控制系统[D].哈尔滨:哈尔滨工业大学,2009.Liu J L.Structural hydraulic passive energy dissipation and direct driving active control systems[D].Harbin:Harbin Institute of Technology,2009.
[8]周云.粘滞阻尼减震结构设计[M].武汉:武汉理工大学出版社,2006:12-16,87-107.Zhou Y.Design of absorbing structure with viscous damping[M].Wuhan:Wuhan University of Technology Press,2006:12-16,87-107.
[9]丁建华,欧进萍.油缸式孔隙式粘滞阻尼器理论与性能试验[J].世界地震工程.2001,17(1):30-35.Ding J H,Ou J P.Theoretical study and performance experiment for cylinder-with-holes viscous damper[J].World Information on EarthquakeEngineering.2001,17(1):30-35.
[10]陈永祁,耿瑞琦,马良喆.桥梁用液体黏滞阻尼器的减振设计和类型选择[J].土木工程学报.2007,40(7):55-61.Chen Y Q,Geng R Q,Ma L Z.Design and selection of fluid viscous devices for shock control of bridges[J].China Civil Engineering Journal.2001,17(1):30-35.
[11]周建兴,岂兴明,矫津毅,等.MATLAB从入门到精通[M].北京:人民邮电出版社,2008:196-208.Zhou J X,Qi X M,Jiao J Y,et al.MATLAB-From novice to rrofessional[M].Beijing:People’s Posts&Telecommunications PublishingHouse,2008:196-208.
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