海洋平台磁流变阻尼器振动控制模型试验
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摘要
以一位于墨西哥湾的典型导管架式海洋平台为原型,根据动力相似准则按1:50比例设计海洋平台结构模型。在此基础上采用模糊控制原理设计以磁流变阻尼器(MR)为控制装置的半主动控制系统。在波浪水池中进行了多种工况模型试验,对平台在规则波、不规则波作用下的减振效果进行了试验研究。试验结果表明,采用模糊原理设计的磁流变阻尼器半主动控制系统能够对海洋平台结构的振动进行有效的控制,且控制效果稳定。
A typical jacket offshore platform in Mexico Gulf is selected as experimental prototype. The experimental model of the jacket platform is designed based on the dynamical similarity criterion with the scale of 1:50. Furthermore,the optimal semi-active system with Magnetorheological Fluid Damper(MR) is designed with the fuzzy control theory. In order to investigate the control effect of MR system on the jacket platform under regular and irregular wave,several load cases of model experiments are performed. The experimental results show that the MR system designed by using fuzzy theory can reduce the vibration of theplatforms effectively and the vibration control effect is fairly stable.
A typical jacket offshore platform in Mexico Gulf is selected as experimental prototype. The experimental model of the jacket platform is designed based on the dynamical similarity criterion with the scale of 1:50. Furthermore,the optimal semi-active system with Magnetorheological Fluid Damper(MR) is designed with the fuzzy control theory. In order to investigate the control effect of MR system on the jacket platform under regular and irregular wave,several load cases of model experiments are performed. The experimental results show that the MR system designed by using fuzzy theory can reduce the vibration of theplatforms effectively and the vibration control effect is fairly stable.
引文
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[2]金峤,周晶,李昕.半主动TLCD对固定式海洋平台的离散神经网络滑模控制[J].世界地震工程,2005,21(3):28-34.
[3]何晓宇,李宏男.波浪荷载作用下导管架海洋平台利用TLCD的振动控制[J].振动工程学报,2008,22(1):71-78.
[4]LIU Y Q,HIROSHI M,HIDEO U.Semi-active vibration isolation system with variable stiffness and damping control[J].Journal of Sound and Vibration,2008,313(1):16-28.
[5]冷谦,于建华.磁流变阻尼器用于结构减振的控制策略研究[J].西南交通大学学报,2003,38(6):663-667.
[6]郭迎庆,费树岷,徐赵东.磁流变阻尼结构模糊控制器的设计与分析[J].东南大学学报(自然科学版),2007,37(26):1027-1031.
[7]孙树民,梁启智.隔震独桩平台地震反应的半主动磁流变阻尼器控制研究[J].振动与冲击,2001,20(3):61-64.
[8]杨飏,欧进萍.导管架式海洋平台磁流变阻尼隔震结构的模型试验[J].振动与冲击,2006,25(5):1-5.
[9]刘剑林,魏民祥,邵金菊等.磁流变阻尼器模糊控制的遗传算法优化[J].机械科学与技术,2008,27(2):171-175.
[10]张纪刚,吴斌,欧进萍.海洋平台冰振控制试验研究[J].东南大学学报,2005,35(I):31-34.
[11]张纪刚,吴斌,欧进萍.渤海某平台磁流变智能阻尼隔振控制[J].沈阳建筑大学学报,2007,122(11):183-189.
[12]DENG Z C,ZHANG D G.Experimental research on the vibration reduction and impact resistance performances of offshore structure based on magnetorheological damper[A].Proceedings of the ASME27th International Conference on Offshore Mechanics and Arctic Engineering[C],June15～20,2008,Estoril,Portugal.
[13]嵇春艳,万乐坤,尹群.海洋平台磁流变阻尼器控制技术研究[J].海洋工程,2008,26(3):27-32.
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