矩形贮液结构的液-固耦合振动特性试验
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摘要
为了得到矩形贮液结构液-固耦合系统的振动特性,该文针对钢制矩形贮液结构的液-固耦合系统进行模态试验分析,给出了矩形贮液结构在无液体与有液体、不同顶板厚度及贮存不同液体时液-固耦合系统的前4阶固有振型和相应的固有频率,对比分析了贮存液体,顶板的相对厚度和液体密度对矩形贮液结构液-固耦合系统固有频率的影响。结果表明:贮存液体会降低贮液结构的固有频率,加大顶板厚度会使贮液结构的固有频率增大,液体密度对贮液结构的固有频率影响不大,从而为矩形贮液结构液-固耦合系统的研究和应用提供依据。
For obtaining the vibration characteristic of liquid-structure interaction system on rectangular liquid-storage structure,mode test for liquid-structure interaction system of steeliness rectangular liquid-storage structure was presented. Former four nature modes of vibration and corresponding natural frequency of liquid-structure interaction system with no liquid and liquid,with different roof thickness and the different liquid densities were obtained,and the influences of the storing liquid,the relative thickness of roof and the density of liquid on the natural frequency of liquid-structure interaction system were analyzed.The results showed that storing liquid would lower the natural frequency of liquid-storage structure,increase of roof thickness would increase the natural frequency,and increase of liquid density would have little effect on the natural frequency.The experiment provides basis for subsequent study and application of liquid-structure interaction system of rectangular liquid-storage structure.
For obtaining the vibration characteristic of liquid-structure interaction system on rectangular liquid-storage structure,mode test for liquid-structure interaction system of steeliness rectangular liquid-storage structure was presented. Former four nature modes of vibration and corresponding natural frequency of liquid-structure interaction system with no liquid and liquid,with different roof thickness and the different liquid densities were obtained,and the influences of the storing liquid,the relative thickness of roof and the density of liquid on the natural frequency of liquid-structure interaction system were analyzed.The results showed that storing liquid would lower the natural frequency of liquid-storage structure,increase of roof thickness would increase the natural frequency,and increase of liquid density would have little effect on the natural frequency.The experiment provides basis for subsequent study and application of liquid-structure interaction system of rectangular liquid-storage structure.
引文
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[13]张素侠,刘习军,贾启芬,等.矩形弹性壳液耦合系统的模态试验分析[J].机械强度,2004,26(6):615-619.Zhang Suxia,Liu Xijun,Jia Qifen,et al.Experiment modal analysis on rectangular elastic fluid-filled shell[J].Journal of Mechanical Strength,2004,26(6):615-619.(in Chinese with English abstract)
[14]徐景满,刘习军.矩形弹性壳液耦合系统重力波的解析分析[J].机床与液压,2008,36(6):54-55.Xu Jingman,Liu Xijun.Analytical research on the gravity waves in rectangular elastic fluid-shell interaction system[J].Machine Tool and Hydraulics,2008,36(6):54-55.(in Chinese with English abstract)
[15]徐景满,刘习军,马秋生.矩形弹性壳液耦合系统重力波的数值分析[J].机床与液压,2008,36(4):53-54.Xu Jingman,Liu Xijun,Ma Qiusheng.Numerical analysis on the gravity waves in rectangular elastic fluid-shell interaction system[J].Machine Tool&Hydraulics,2008,36(6):54-55.(in Chinese with English abstract)
[16]罗祖富,魏明钟,沈祖炎,等.钢结构设计手册[M].北京:中国建筑工业出版社,1992.
[2]Ikeda T,Nakagawa N.Non-linear vibrations of a structure caused by water sloshing in a rectangular tank[J].Journal ofSound and Vibration,1997,201(1):23-41.
[3]Warnitchai P,Pinkaew T.Modelling of liquid sloshing in rectangular tanks with flow-dampening devices[J].Engineering Structures,1998,20(7):593-600.
[4]陈科,李俊峰,王天舒.矩形贮箱内液体非线性晃动动力学建模与分析[J].力学学报,2005,37(3):339-345.Chen Ke,Li Junfeng,Wang Tianshu.Nonlinear dynamics modeling and analysis of liquid sloshing in rectangle tank[J].Acta Mechanica Sinica,2005,37(3):339-345.(in Chinese with English abstract)
[5]程绪铎,王照林.带弹性隔板的矩形贮箱中流弹耦合振动问题[J].力学与实践,1999,21(6):50-52.Cheng Xuduo,Wang Zhaolin.Hydroelastic vibrations in rectangular tank with elastic spacer[J].Mechanics and Engineering,1999,21(6):50-52.(in Chinese with English abstract)
[6]刘习军,张素侠,刘国英,等.矩形弹性壳液耦合系统中的重力波分析[J].力学学报,2006,38(1):106-112.Liu Xijun,Zhang Stixia,Liu Guoying,et al.The analysis of gravity waves in a rectangular elastic fluid-shell coupled system[J].Acta Mechanica Sinica,2006,38(1):106-112.(in Chinese with English abstract)
[7]程选生,杜永峰.弹性壁板下钢筋混凝土矩形贮液结构的液动压力[J].工程力学,2009,26(6):82-88.Cheng Xuansheng,Du Yongfeng.The dynamic fluid pressure of reinforced concrete rectangular liquid-storage tanks with elastic walls[J].Engineering Mechanics,2009,26(6):82-88.(in Chinese with English abstract)
[8]Cheng Xuansheng,Du Yongfeng,Li Hui,et al.Dynamic fluid pressure of reinforced concrete rectangular liquid-storage tanks under elastic walls[C/CD]//ANCER Meeting,5,paper No66,2007.
[9]程选生,杜永峰,李慧.钢筋混凝土矩形贮液结构的液-固耦合晃动—弹性底板[J].应用力学学报,2008,25(4):622-626.Cheng Xuansheng,Du Yongfeng,Li Hui.Liquid-solid coupling sloshing of rReinforced concrete rectangular liquid-storage tanks-elastic soleplate[J].Chinese Journal of Applied Mechanics,2008,25(4):22-626.(in Chinese with English abstract)
[10]程选生.钢筋混凝土矩形贮液结构的液-固耦合振动[J].煤炭学报,2009,34(3):340-344.Cheng Xuansheng.Liquid-solid coupling vibration of reinforced concrete rectangular liquid-storage tanks[J].Journal of China Coal Society,2009,34(3):340-344.(in Chinese with English abstract)
[11]杜永峰,史晓宇,程选生.钢筋混凝土矩形贮液结构的液-固耦合动力分析[J].西北地震学报,2008,30(1):21-26.Du Yongfeng,Shi Xiaoyu,Cheng Xuansheng.Dynamic analysis of reinforced concrete rectangular liquid storage structures considering liquid-structure interaction[J].Northwestern Seismological Journal,2008,30(1):21-26.(in Chinese with English abstract)
[12]杜永峰,史晓宇,程选生.钢筋混凝土矩形贮液结构的三维液固耦合频域分析[J].特种结构,2008,25(3):65-68.Du Yongfeng,Shi Xiaoyu,Cheng Xuansheng.Frequency domain analysis of reinforced concrete rectangular liquid storage structures taking into account liquid-structure interaction[J].Special Structures,2008,25(3):65-68.(in Chinese with English abstract)
[13]张素侠,刘习军,贾启芬,等.矩形弹性壳液耦合系统的模态试验分析[J].机械强度,2004,26(6):615-619.Zhang Suxia,Liu Xijun,Jia Qifen,et al.Experiment modal analysis on rectangular elastic fluid-filled shell[J].Journal of Mechanical Strength,2004,26(6):615-619.(in Chinese with English abstract)
[14]徐景满,刘习军.矩形弹性壳液耦合系统重力波的解析分析[J].机床与液压,2008,36(6):54-55.Xu Jingman,Liu Xijun.Analytical research on the gravity waves in rectangular elastic fluid-shell interaction system[J].Machine Tool and Hydraulics,2008,36(6):54-55.(in Chinese with English abstract)
[15]徐景满,刘习军,马秋生.矩形弹性壳液耦合系统重力波的数值分析[J].机床与液压,2008,36(4):53-54.Xu Jingman,Liu Xijun,Ma Qiusheng.Numerical analysis on the gravity waves in rectangular elastic fluid-shell interaction system[J].Machine Tool&Hydraulics,2008,36(6):54-55.(in Chinese with English abstract)
[16]罗祖富,魏明钟,沈祖炎,等.钢结构设计手册[M].北京:中国建筑工业出版社,1992.
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