对称正交铺设复合材料层合板的随机振动及振动控制

本文提出了对称正交铺设复合材料矩形层合板在随机荷载作用下的振动分析方法和防止它进入大挠度的振动控制设计方法。文中在建立了结构体系随机振动状态方程的基础上,提出了计算板反应各阶统计矩和可靠性的公式。并根据板的使用要求,应用现代控制论得到了将板挠度控制在要求的小挠度范围内的减振控制设计方法及相应的计算公式。

Stochastic Vibration and Control of Symmetric Cross-ply Composite Laminated platec

The paper has brought forth the methods of vibration analysis of symmetric cross-ply composite triangular laminated plates unber stochastic loads and also the design methods of vibration control to prevent the plates from the large deflections. Having establisheb equations of state in stochastic vibration of structure system, the paper has obtained the calculations of every order statictical moment of the plates response and a reliability formula. According to the engineering demands on the plates, a design method and a corresponding calculating formula in vibration-reducing control have been acquired by means of the modern control theory to restrict plates deflections to the linear vibrations as demanded.