文章基本信息

标题：Vibration Analysis of Kenyir Dam Power Station Structure Using a Real Scale 3D Model
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作者：Azizi Arbain ; Ahmad Zhafran Ahmad Mazlan ; Mohd Hafiz Zawawi 等
期刊名称：Civil And Environmental Engineering Reports
电子版ISSN：2080-5187
出版年度：2019
卷号：29
期号：3
页码：48-59
DOI：10.2478/ceer-2019-0023
出版社：Walter de Gruyter GmbH
摘要：In this paper, the vibration analysis in terms of modal and harmonic responses are investigated for the power station structure of Kenyir Dam in Terengganu, Malaysia. Modal analysis is carried out to provide the dynamic characteristics of the power station which includes the natural frequencies and mode shapes. Meanwhile, the harmonic response analysis is performed by applying the force to the structure to obtain the Frequency Response Function (FRF) in certain range of frequencies. A real scale three-dimensional (3D) model of the Kenyir Dam power station is constructed using SolidWorks software and imported to ANSYS software for the Finite Element (FE) analysis. A proper boundary condition is taken into consideration to demonstrate the real behaviour of the power station structure. From the results, six most significant natural frequencies and mode shapes including the FRF in all three axes are selected. The highest natural frequency value occurred at 5.4 Hz with the maximum deflection of 0.90361 m in the z axis direction. This value is important in order to verify whether the structure can overcome the resonance phenomenon from the external disturbance forces in the future..
关键词：Modal and harmonic responses ; natural frequency ; mode shape ; Frequency Response Function ; Finite Element ; dam structure