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|Title:||SUBHARMONIC RESPONSE OF OFFSHORE STRUCTURES.|
|Source:||Liaw, Chih-Young (1987-03). SUBHARMONIC RESPONSE OF OFFSHORE STRUCTURES.. Journal of Engineering Mechanics 113 (3) : 366-377. ScholarBank@NUS Repository.|
|Abstract:||The nonlinear dynamic behavior of flexible offshore structures in waves is studied using both analytical and numerical approaches. In particular, the phenomenon of subharmonic oscillation of order one-half is investigated. From the analytical studies, three basic parameters of the coupled wave-force-structure system are identified. Ranges of the basic parameters, within which subharmonic responses of the system may occur, are derived. The numerical results obtained by solving in the time domain the nonlinear equation of motion are used to verify the analytical conclusion. Eighteen cases including the combinations of three different linear waves, three structural member sizes, and two values of the drag coefficient, have been analyzed. Study results are discussed.|
|Source Title:||Journal of Engineering Mechanics|
|Appears in Collections:||Staff Publications|
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