Hydroelastic response of three-layered beam resting on winkler foundation

被引:1
作者
Mogilevich, L. I. [1 ]
Popov, V. S. [1 ]
Popova, A. A. [1 ]
Christoforova, A. V. [2 ]
机构
[1] Yuri Gagarin State Tech Univ Saratov, 77 Politech Skaya St, Saratov 410054, Russia
[2] Russia Saratov State Univ, 83 Astrakhanskaya St, Saratov 410012, Russia
来源
XII INTERNATIONAL SCIENTIFIC AND TECHNICAL CONFERENCE APPLIED MECHANICS AND SYSTEMS DYNAMICS | 2019年 / 1210卷
基金
俄罗斯基础研究基金会;
关键词
Hydroelastic oscillations; Sandwich beam; Viscous fluid; Pulsating pressure; SANDWICH BEAM; FLUID LAYER; VIBRATION; PLATES; LIQUID;
D O I
10.1088/1742-6596/1210/1/012098
中图分类号
O3 [力学];
学科分类号
08 ; 0801 ;
摘要
The hydroelastic oscillations problem of the sandwich beam resting on elastic foundation and interacting with the pulsating fluid layer was investigated. The three-layered beam with an incompressible lightweight filler was considered. The broken normal hypothesis for the three-layered beam and the model of viscous incompressible fluid, as well as Winkler model for elastic foundation, was chosen to study hyroelastic problem. A mathematical model of the considered mechanical system consists of dynamic equations of the three-layered beam with incompressible lightweight filler and the Navier-Stokes equations with continuity equation for the pulsating viscous fluid layer. The no-slip conditions and pressure coincidence at the edges with the given pressure into edges cavities were selected as boundary ones. The plane problem of hydroelastic beam bending oscillations for the regime of steady harmonic ones were considered. The solution of the hydroelastic problem was carried out by the perturbations method using proposed small parameters of the hydroelastic problem. As a result, the laws of three-layered beam elastic deflections and the hydrodynamic parameters of pulsating viscous fluid layer were obtained.
引用
收藏
页数:6
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