State-space modelling of a vertical cylinder in heave

GIEC OpenIR

	State-space modelling of a vertical cylinder in heave
	Yu, Z; Falnes, J
	1995-10-01
发表期刊	APPLIED OCEAN RESEARCH
ISSN	0141-1187
卷号	17 期号:5 页码:265-275
通讯作者	Yu, Z()
摘要	The (first-order) wave forces on structures interacting with ocean waves may be represented by complex transfer functions in the frequency domain or by convolution integrals in the time domain. The integration kernels are causal for radiation forces, but not necessarily so for excitation (scattering) forces. As a convenient approximation, these integrals may be replaced by a finite-order system of differential equations with constant coefficients. This method is applied to a heaving cylinder with a vertical axis, and good approximations are obtained when the order of the differential equation system is three for the radiation force and five for the excitation force. The corresponding state-space model for the heave motion response due to the incident wave elevation has an order of 10, but it is demonstrated that it is possible to reduce the order to five without increasing the inaccuracy in the heave motion too much. (C) 1996 Elsevier Science Ltd.
关键词	wave forces simulation impulse response approximation
关键词[WOS]	HIGH-FREQUENCY
收录类别	SCI
语种	英语
WOS研究方向	Engineering ; Oceanography
WOS类目	Engineering, Ocean ; Oceanography
WOS记录号	WOS:A1995UL73800001
出版者	ELSEVIER SCI LTD
引用统计	被引频次：176[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/22672
专题	中国科学院广州能源研究所
通讯作者	Yu, Z
作者单位	CHINESE ACAD SCI,GUANGZHOU INST ENERGY CONVERS,GUANGZHOU,PEOPLES R CHINA
推荐引用方式 GB/T 7714	Yu, Z,Falnes, J. State-space modelling of a vertical cylinder in heave[J]. APPLIED OCEAN RESEARCH,1995,17(5):265-275.
APA	Yu, Z,&Falnes, J.(1995).State-space modelling of a vertical cylinder in heave.APPLIED OCEAN RESEARCH,17(5),265-275.
MLA	Yu, Z,et al."State-space modelling of a vertical cylinder in heave".APPLIED OCEAN RESEARCH 17.5(1995):265-275.