Free Vibrational Characteristics of Pretensioned Cable Roofs

机译：预拉伸电缆屋盖的自由振动特性

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Cable roofs are analyzed using nonlinear membrane theory. The cable network is simulated by an equivalent thin elastic membrane without shear rigidity. The equations of motion for the vibrating membrane are formulated by considering the equilibrium position of the membrane as the position of the membrane after deformation due to prestress and uniform transverse load over the projected area of the membrane. The equations of motion are then solved for natural frequencies and associated mode shapes by restricting the analysis to small vibrations about the equilibrium position and using the nonlinear strain-displacement equations and appropriate boundary conditions. Two special cases are considered: a flat rectangular membrane, and a membrane that has the shape of a hyperbolic papaboloid surface that is rectangular in plan. Comparisons between linear and nonlinear membrane theory solutions are presented. (Author)

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Bathish, G. N.;
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年度 1969
页码 p.1-63
总页数 63
原文格式 PDF
正文语种 eng
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关键词
Roofs ; Loading(Mechanics) ; Vibration ; Equations of motion ; Structural properties ; Cables(Mechanical) ; Simulation ; Deformation ; Shear stresses ; Partial differential equations ; Membranes ; Elasticity ; Strain(Mechanics);

机译：屋顶;载荷（力学）;振动;运动方程;结构特性;电缆（机械）;模拟;变形;剪应力;偏微分方程;膜;弹性;应变（力学）;

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Free Vibrational Characteristics of Pretensioned Cable Roofs

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