海洋平台-摇摆柱结构体系冰激振动试验
|
摘要
海洋平台-摇摆柱结构体系是一种新型结构体系,能够有效地控制海洋平台在冰荷载作用下的动力反应,同时可以和多种消能减振装置相结合,进一步提高结构耗能能力。通过采用ANSYS对模型方案进行优化,研究冰荷载作用下,连接杆数量、位置和摇摆柱直径对海洋平台抗振性能的影响,分析发现连接杆数量越多、摇摆柱直径越大,减振效果越好。考虑到摇摆柱与海洋的接触面积以及结构的经济性,方案3(摇摆柱直径为360mm、连接杆4根)可以达到较好的控制效果。模型以JZ20-2北高点海洋平台为基础,按照方案3制作1∶10的缩尺模型。通过原海洋平台和海洋平台-摇摆柱结构进行对比分析,发现海洋平台增设摇摆柱是一种有效减振措施。
Platform with rocking column is a new style structural system which can effectively control the dynamic responses of the offshore platform under ice loads.Combined with energy dissipation devices,the new system can have a good energy dissipation ability.This paper optimizes the schemes to research the influence of number and location of link rods and the diameter of rocking column with ANSYS software.The results show that link rods and rocking column have great influence on vibration control effect.The more the link rods and larger the rocking column are,the better vibration control effect will be.Considering the economy of structure and contact area of rocking column and marine,scheme three,four connecting rods and 360 mm rocking column,has been chosen.1∶10 scale models,offshore platform and platform with rocking column,have been designed and produced on the base of JZ20-2.The results show that the offshore platform with rocking column is an effective way to reduce vibration.
Platform with rocking column is a new style structural system which can effectively control the dynamic responses of the offshore platform under ice loads.Combined with energy dissipation devices,the new system can have a good energy dissipation ability.This paper optimizes the schemes to research the influence of number and location of link rods and the diameter of rocking column with ANSYS software.The results show that link rods and rocking column have great influence on vibration control effect.The more the link rods and larger the rocking column are,the better vibration control effect will be.Considering the economy of structure and contact area of rocking column and marine,scheme three,four connecting rods and 360 mm rocking column,has been chosen.1∶10 scale models,offshore platform and platform with rocking column,have been designed and produced on the base of JZ20-2.The results show that the offshore platform with rocking column is an effective way to reduce vibration.
引文
[1]欧进萍,段忠东,肖仪清.基于实测动冰力时程的海洋平台结构冰振反应分析[J].海洋工程,1999,17(2):70-78.Ou Jinping,Duan Zhongdong,Xiao Yiqing.Ice-induced vibration analysis of JZ20-2MUQ offshore platform using in-situ ice force histories[J].Ocean Engineering,1999,17(2):70-78.(in Chinese)
[2]Yue Qinjin,Bi Xiangjun.Ice induced jacket structure vibration[J].Cold Regions Engineering,2000,14(2):81-92.
[3]Wang Shengyong,Yue Qianjin.Vibration reduction of bucket foundation platform with fixed ice-breaking cone in the bohai sea[J].Journal of Cold Regions Engineering,2012,26(4):160-168.
[4]Wang Shengyong,Yue Qianjian,Zhang Dayong.Iceinduced non-structure vibration reduction of jacket platforms with isolation cone system[J].Ocean Engineering,2013(70):118-123.
[5]张力.导管架海洋平台冰激振动控制的实验研究[D].大连:大连理工大学,2008.
[6]Wu Qiong,Zhao Xilu,Zheng Rencheng.Experimental study on a tuned-mass damper of offshore for vibration reduction[J].Journal of Physics:Conference Series,2016,744(1):1-8.
[7]管友海,李华军,黄维平.海洋平台磁流变阻尼器半主动控制研究[J].青岛海洋大学学报:自然科学版,2002,32(4):650-656.Guan Youhai,Li Huajun,Huang Weiping.Study on magneto rheological fluid damper vibration control of offshore platforms[J].Journal of Qingdao Ocean U-niversity:Natural Science Edition,2002,32(4):650-656.(in Chinese)
[8]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.Ji Chunyan,Wan Lekun,Yin Qun.Study on magneto rheological fluid damper vibration control for offshore platforms based on fuzzy control strategy[J].The O-cean Engineering,2008,26(3):27-32.(in Chinese)
[9]梅真,高毅超,郭子雄.磁流变阻尼器动力性能测试与建模[J].振动、测试与诊断,2017,37(3):553-559.Mei Zhen,Gao Yichao,Guo Zixiong.Dynamic testing and modeling of a magnetorheological damper[J].Journal of Vibration,Measurement&Diagnosis,2017,37(3):553-559.(in Chinese)
[10]张纪刚,苏锐,刘菲菲,等.海洋平台-摇摆柱减振体系中连接杆优化研究[J].地震工程与工程振动,2015(5):144-150.Zhang Jigang,Su Rui,Liu Feifei,et al.Optimization of link bars of new ocean offshore platform with rocking-column vibration control system[J].Earthquake Engineering and Engineering Dynamics,2015(5):144-150.(in Chinese)
[11]张纪刚,王剑阁,韩永力.用于海洋平台结构的钢管混凝土摇摆柱构造性能试验研究[J].北京工业大学学报,2015(7):1028-1034.Zhang Jigang,Wang Jiange,Han Yongli.Experimental research of CFST rocking columns used in offshore platform[J].Journal of Beijing University of Technology,2015(7):1028-1034.(in Chinese)
[12]周颖,吕西林.摇摆结构及自复位结构研究综述[J].建筑结构学报,2011(9):1-10.Zhou Ying,LüXilin.State-of-the-art on rocking and self-centering structures[J].Journal of Building Structures,2011(9):1-10.(in Chinese)
[13]Astaneh-Asl A,Shen J H.Rocking behavior and retrofit of tall bridge piers[C]∥Structural Engineering in Natural Hazards Mitigation,Structures Congress.Reston VA,USA:The American Society of Civil Engineers,1993:121-125.
[14]Wada A,Qu Z,Ito H,et al.Seismic retrofit using rocking walls and steel dampers[C]∥Proceedings of ATC/SEI conference on improving the seismic performance of existing buildings and other structures.San Francisco,CA,USA:Applied Technology Council,2009:1010-1021.
[2]Yue Qinjin,Bi Xiangjun.Ice induced jacket structure vibration[J].Cold Regions Engineering,2000,14(2):81-92.
[3]Wang Shengyong,Yue Qianjin.Vibration reduction of bucket foundation platform with fixed ice-breaking cone in the bohai sea[J].Journal of Cold Regions Engineering,2012,26(4):160-168.
[4]Wang Shengyong,Yue Qianjian,Zhang Dayong.Iceinduced non-structure vibration reduction of jacket platforms with isolation cone system[J].Ocean Engineering,2013(70):118-123.
[5]张力.导管架海洋平台冰激振动控制的实验研究[D].大连:大连理工大学,2008.
[6]Wu Qiong,Zhao Xilu,Zheng Rencheng.Experimental study on a tuned-mass damper of offshore for vibration reduction[J].Journal of Physics:Conference Series,2016,744(1):1-8.
[7]管友海,李华军,黄维平.海洋平台磁流变阻尼器半主动控制研究[J].青岛海洋大学学报:自然科学版,2002,32(4):650-656.Guan Youhai,Li Huajun,Huang Weiping.Study on magneto rheological fluid damper vibration control of offshore platforms[J].Journal of Qingdao Ocean U-niversity:Natural Science Edition,2002,32(4):650-656.(in Chinese)
[8]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.Ji Chunyan,Wan Lekun,Yin Qun.Study on magneto rheological fluid damper vibration control for offshore platforms based on fuzzy control strategy[J].The O-cean Engineering,2008,26(3):27-32.(in Chinese)
[9]梅真,高毅超,郭子雄.磁流变阻尼器动力性能测试与建模[J].振动、测试与诊断,2017,37(3):553-559.Mei Zhen,Gao Yichao,Guo Zixiong.Dynamic testing and modeling of a magnetorheological damper[J].Journal of Vibration,Measurement&Diagnosis,2017,37(3):553-559.(in Chinese)
[10]张纪刚,苏锐,刘菲菲,等.海洋平台-摇摆柱减振体系中连接杆优化研究[J].地震工程与工程振动,2015(5):144-150.Zhang Jigang,Su Rui,Liu Feifei,et al.Optimization of link bars of new ocean offshore platform with rocking-column vibration control system[J].Earthquake Engineering and Engineering Dynamics,2015(5):144-150.(in Chinese)
[11]张纪刚,王剑阁,韩永力.用于海洋平台结构的钢管混凝土摇摆柱构造性能试验研究[J].北京工业大学学报,2015(7):1028-1034.Zhang Jigang,Wang Jiange,Han Yongli.Experimental research of CFST rocking columns used in offshore platform[J].Journal of Beijing University of Technology,2015(7):1028-1034.(in Chinese)
[12]周颖,吕西林.摇摆结构及自复位结构研究综述[J].建筑结构学报,2011(9):1-10.Zhou Ying,LüXilin.State-of-the-art on rocking and self-centering structures[J].Journal of Building Structures,2011(9):1-10.(in Chinese)
[13]Astaneh-Asl A,Shen J H.Rocking behavior and retrofit of tall bridge piers[C]∥Structural Engineering in Natural Hazards Mitigation,Structures Congress.Reston VA,USA:The American Society of Civil Engineers,1993:121-125.
[14]Wada A,Qu Z,Ito H,et al.Seismic retrofit using rocking walls and steel dampers[C]∥Proceedings of ATC/SEI conference on improving the seismic performance of existing buildings and other structures.San Francisco,CA,USA:Applied Technology Council,2009:1010-1021.