نتایج جستجو برای: thin cylindrical shell
تعداد نتایج: 199431 فیلتر نتایج به سال:
Computational problems in structural engineering are growing ever larger and solutions must increasingly be based on correspondingly large datasets obtained from detailed parametric sweeps. However, the acquisition of computational useful size is also becoming unfeasible without extensive use automation. In shell buckling studies, particularly those thin-walled shells under complex loading cond...
The Wave-based Finite Element Method or WFEM is applied to in-vacuo cylindrical shells to studystructure-borne wave interaction with bulkhead and keel-type plate attachments. The frequency rangeconsidered is from one to ten times the shell "ring" frequency. The goal is to better understand theshell-plate interaction, which plays an important role in the acoustic scattering and r...
Reduced order models employing the Lagrange and POD reduced basis methods in numerical approximation and feedback control of systems are presented and numerically tested. The system under consideration is a thin cylindrical shell with surface-mounted piezoceramic actua-tors. Donnell-Mushtari equations, modiied to include Kelvin-Voigt damping, are used to model the system dynamics. Basis functio...
One source of structural vibration in a submarine is the fluctuating axial thrust force applied to the thrust block by the propeller shaft. This paper describes the initial stages of experimental work being undertaken to validate an existing mathematical model for the sound radiation from a submarine excited by this mechanism. A thin cylindrical shell 1500mm long and 400mm in diameter made of 2...
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