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《Journal of Heilongjiang Bayi Agricultural University》 2017-04
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Natural Vibration Analysis of Single-Cable Structure Based Upon the Theory of Energy Variation

Liu Wenyang;Wang Peng;Zhang Wenfu;College of Engineering,Heilongjiang Bayi Agricultural University;China State Construction Technical Center;School Architecture Engineering,Nanjing Institute of Technology;  
Natural vibration analysis was the basis of structural dynamic analysis to obtain the natural frequency and vibration mode.Simplified method for natural vibration analysis of single-cable structure was presented based upon the theory of energy variation.The formulas for natural frequency and vibration mode were given out and the accuracy of the results was validated by finite element method. The error was less than 5% in general. Comparing with Rayleigh method,energy variation method was more accurate because the coupling effect of each vibration mode was considered. The presented method could be used in dynamic analysis of suspension cable as well as the supplement of finite element result.
【Key Words】: single-cable structure natural vibration theory of energy variation Rayleigh method
【Fund】: 黑龙江省科学基金项目(QC2016071)
【CateGory Index】: TU311.3
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