IMECH-IR  > 环境力学重点实验室(2009-2011)
Hydroelastic dynamic characteristics of a slender axis-symmetric body
Chen WM(陈伟民); Li M(李敏); Zheng ZQ; Zhang LW; Li M
Source PublicationScience China-Physics Mechanics & Astronomy
AbstractThe slender axis-symmetric submarine body moving in the vertical plane is the object of our investigation. A coupling model is developed where displacements of a solid body as a Euler beam (consisting of rigid motions and elastic deformations) and fluid pressures are employed as basic independent variables, including the interaction between hydrodynamic forces and structure dynamic forces. Firstly the hydrodynamic forces, depending on and conversely influencing body motions, are taken into account as the governing equations. The expressions of fluid pressure are derived based on the potential theory. The characteristics of fluid pressure, including its components, distribution and effect on structure dynamics, are analyzed. Then the coupling model is solved numerically by means of a finite element method (FEM). This avoids the complicacy, combining CFD (fluid) and FEM (structure), of direct numerical simulation, and allows the body with a non-strict ideal shape so as to be more suitable for practical engineering. An illustrative example is given in which the hydroelastic dynamic characteristics, natural frequencies and modes of a submarine body are analyzed and compared with experimental results. Satisfactory agreement is observed and the model presented in this paper is shown to be valid.
Indexed BySCI
WOS IDWOS:000280210700030
WOS Research AreaPhysics
WOS SubjectPhysics, Multidisciplinary
Funding OrganizationNational Natural Science Foundation of China [10772183] ; Chinese Academy of Sciences [KJCX2-YW-L07] ; National High Technology Research and Development Program of China [2006AA09A103-4]
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Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorLi M
Recommended Citation
GB/T 7714
Chen WM,Li M,Zheng ZQ,et al. Hydroelastic dynamic characteristics of a slender axis-symmetric body[J]. Science China-Physics Mechanics & Astronomy,2010,53(7):1339-1347.
APA 陈伟民,李敏,Zheng ZQ,Zhang LW,&Li M.(2010).Hydroelastic dynamic characteristics of a slender axis-symmetric body.Science China-Physics Mechanics & Astronomy,53(7),1339-1347.
MLA 陈伟民,et al."Hydroelastic dynamic characteristics of a slender axis-symmetric body".Science China-Physics Mechanics & Astronomy 53.7(2010):1339-1347.
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