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[2] Qian Yuan-yao, Analysis of vibration and wind response of hyperbolic cooling tower with distributing crack, Paper of 3rd Huadong Solid Mechanics Conference Jiuhua Mountain, Anhui Province (1986).(in Chinese).
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[5] Gao Shi-qiao and Loo Wen-da, Dynamic FEM solution of hyperbolic colling tower shell with nonaxisymmetric imperfections, Paper in the first Conference of Industry Cooing Tower, Xi'an (1987).(in Chinese).