Control of mechanical deformation of a laminate by electrical load to piezoelectric actuator considering the effects of damping and transverse shear
Control of mechanical deformation of a laminate by electrical load to piezoelectric actuator considering the effects of damping and transverse shear
复制标题
考虑阻尼和横向剪切的影响，通过压电致动器的电负载控制层压板的机械变形
DOI：
10.1016/s0020-7225(03)00069-7
复制
发表时间：
2003
影响因子：
6.6
通讯作者：
N. Noda
中科院分区：
文献类型：
--
作者：
M. Ishihara;N. Noda
在本文中，我们处理的控制层合板的动态变形施加电负载的压电致动器。在考虑层间剪切阻尼和横向剪切阻尼的情况下，分析了层合板的动力特性。分析模型是由纤维增强层和压电层组成的矩形层合板。该模型被假定为一个对称的正交铺设层压板与所有的边缘简支，并受到不可避免的机械载荷和电负载的压电致动器。基于一阶剪切变形理论分析了层合板的力学性能。通过引入满足牛顿粘性定律的层间剪切应力，将层间剪切阻尼的影响纳入我们的分析中。得到了下列量：（1）层合板的固有频率，（2）挠度和转角的权函数，（3）载荷随时间任意变化引起的瞬态挠度。此外，通过施加电压到压电致动器，以控制由于机械负载的偏转的方法被示出。
In this paper, we treat the control of dynamic deformation of a laminate by applying electrical load to piezoelectric actuators. Dynamic behavior of the laminate is analyzed considering the effect of damping due to interlaminar shear and the effect of transverse shear. The analytical model is a rectangular laminate composed of fiber-reinforced laminae and piezoelectric layers. The model is assumed to be a symmetric cross-ply laminate with all edges simply supported and to be subjected to unavoidable mechanical load and to electrical loads to piezoelectric actuators. Behavior of the laminate is analyzed based on the first-order shear deformation theory. The effect of damping due to interlaminar shear is incorporated into our analysis by introducing the interlaminar shear stresses which satisfy the Newton’s law of viscosity. The following quantities are obtained: (1) natural frequencies of the laminate, (2) weight functions for the deflection and rotations and (3) transient deflection due to loads varying arbitrarily with time. Moreover, the methods to control the deflection due to mechanical load by applying electrical voltage to the piezoelectric actuator are shown.