Analysis of Dynamic Characteristic and Identification of Natural Modes with Significant Contributions to Wind-induced Vibration of MAN Type Dry Gas Storage Tank
LI Zheng-liang1,2,LIU Xin-peng1,YAN Zhi-tao1,2,JIAO Hong-wei1,YU Deng-ke1
1.School of Civil Engineering,Chongqing University,Chongqing 400045,China;
2.Key Laboratory of New Technology for Construction of Cities in Mountain Area(Chongqing University),Ministry of Education,Chongqing 400045,China
The dynamic characteristic of MAN type dry gas storage tank is very complex, which is different from ordinary spatial structure. Therefore, as the basis of analysis of the wind-induced response in the frequency domain for the gas storage tank, the dynamic characteristics of which are analyzed under different working conditions by using the finite element software. The modes are sorted descendingly according to the calculation results of mode energy participation factors of background response and the resonate response respectively. And then the natural modes with significant contributions to wind-induced vibration are elected. Finally, the result which is analyzed in frequency domain through elected modes is compare with the one calculated by CQC method. It is found that the natural frequency of the structure is dense. The location of piston and internal pressure are very important elements of affecting the dynamic characteristic of the gas storage tank. The mode energy participation factors of background and resonant response can reflect the contributions of different order mode energy to total energy of response. The analysis in frequency domain through the modes elected by mode energy participation factor method has the advantages of high efficiency and controlled accuracy.
李正良1,2,刘欣鹏1,晏致涛1,2,焦红伟1,俞登科1. 曼型干式煤气柜动力特性分析及风振响应主要贡献模态识别[J]. 振动与冲击, 2015, 34(19): 76-83.
LI Zheng-liang1,2,LIU Xin-peng1,YAN Zhi-tao1,2,JIAO Hong-wei1,YU Deng-ke1. Analysis of Dynamic Characteristic and Identification of Natural Modes with Significant Contributions to Wind-induced Vibration of MAN Type Dry Gas Storage Tank. JOURNAL OF VIBRATION AND SHOCK, 2015, 34(19): 76-83.
[1] 沈世钊.大跨空间结构的发展—回顾与展望[J].土木工程学报,1998,31(3):5-14.
Shen Shizhao. Development Of Long-Span Structures—A Review And Prospect [J]. China Civil Engineering Journal,1998,31(3):5-14
[2] Wilson E L, Yuan Mingwu. Dynamic analysis by direct superposition of Ritz vectors [J]. Earthquake Engineering and Structural Dynamics, 1982, (10):813-
821.
[3] 顾明,黄鹏,周毅,等.北京首都机场3号航站楼风荷载和响应研究[J].土木工程学报,2005,38(1): 40-44.
Gu Ming, Huang Peng, Zhou Yi. A Study On Wind Loads And Responses Of Terminal 3 At Beijing Capital Airport [J]. China Civil Engineering Journal, 2005,38(1):40-44.
[4] 王国砚,黄本才,林颖儒,等.基于CQC方法的大跨屋盖结构随机风振响应计算[J].空间结构,2003,9(4):22-26.
Wang Guoyan, Huang Bencai, Lin Yingru. Solution Of Wind Induced Random Vibration Of Large Span Roof Structures Based On CQC Method [J]. Spatial Structures,2003,9(4):22-26.
[5] Nakayama M, Sasaky Y, Masuda K, et al. An efficient method for selection of vibration modes contributory to wind response on dome like roofs [J]. Journal of Wind Engineering and Industrial Aerodynamics, 1998, 73(1):31- 43.
[6] WU Y, ZHANG J S, CHEN B, et al. Identification of the dominant vibration modes of single- layer reticulated shells under wind action [J]. International Journal of Space Structures, 2007, 22(2):123- 132.
[7] 何艳丽,董石麟,龚景海. 空间网格结构频域风振响应分析模态补偿法[J].工程力学,2002,19(4):1-6.
He Yanli, Dong Shilin, Gong Jinghai. Wind-induced Response of Spatial Structures with Mode Compensation in Frequency Domain. [J] Engineering Mechanics,2002,19(4):1-6.
[8] 胡继军,网壳风振及控制研究[D]. 上海交通大学,2000.
[9] Mataki Y, Iwasa Y, Fukao Y, Okada A. Wind induced response of low-profile cable-reinforced air-supported structures [J]. Journal of Wind Engineering and Industrial Aerodynamics, 1988, 29:253-262.
[10] 邓华,董石麟,何艳丽,扬睿,马耀庭.深圳游泳跳水馆主馆屋盖结构分析及风振响应计算[J].建筑结构学报, 2004, 25(2):72-78.
Deng Hua, Dong Shilin, He Yanli, Yang Rui, Ma Yaoting. Behavior Analysis And Wind-induced Vibration Computation of Mail Hall Roof Structure of Shenzhen Swimming and Diving Hall [J]. Journal of Building Structures,2004,25(2):72-78.
[11] 田玉基,杨庆山,范重,等.国家体育场大跨度屋盖结构风振系数研究 [J]. 建筑结构学报, 2007, 28(2): 36-41.
Tian Yuji, Yang Qingshen, Fan Zhong. Gust Factors For Large-Span Roof of the National Stadium [J]. Journal of Building Structures,2007,28(2):36-41
[12] A SHRA F A M, GOULD P L. On the resonant component of the response of single degree of freedom systems under wind loading [J]. Engineering Structures, 1985, 7(4): 280- 292.
[13] 陈波, 武岳, 沈世钊. 背景响应、共振响应定义及其相关性分析方法 [J]. 振动工程学报, 2008, 21(2):140- 145.
Chen Bo, Wu Yue, Shen Shizhao. Definitions and Correlation Analyses for Background Response and Resonant Response [J]. Journal of Vibration Engineering, 2008, 21(2):140- 145.
[14] 田玉基,杨庆山. 大跨度屋盖结构脉动风振响应的参与振型 [J]. 哈尔滨工业大学学报. 2009(06)
Tian Yuji, Yang Qingshan. Dominant Modes of Fluctuating wind-induced response for Large-span Roof [J]. Journal of Harbin Institute of Technology. 2009(06)
[15] 方同.工程随机振动[M].北京:国防工业出版社,1995.
[16] 舒新玲, 周岱.风速时程AR模型及其快速实现[J].空间结构, 2003, 12(9): 27-32.
Shu Xinling, Zhou Dai. AR model of wind speed time series and its rapid implementation [J]. Spatial Structures, 2003, 12(9): 27-32.