Experimental Research on Controlling Deployable Space Structures with Distributed PVDF Actuators

(1)研究了在折痕附近局部放置压电膜（PVDF），用于折叠可展开膜的静态形状控制。实验得到了驱动器的几何形状、驱动电压和膜内张力对控制性能的影响。(2)解析介绍了聚偏氟乙烯（PVDF）折痕膜的数学模型。数学模型的数值计算结果表明，PVDF折痕等效长度的几何构型对控制性能的影响。(3)实验研究了PVDF控制折皱膜的振动特性。(4)为了将PVDF用于控制充气结构，对充气结构的结构性能进行了研究。

(1) Locally placed piezoelectric films (PVDF) near the creases are examined for the static shape control of folded deployable membrane. The effects of the geometry of the actuator, the driving voltage, and the tensile force in the membrane on the control performance are experimentally obtained.(2) Mathematical model for the creased membrane with PVDF is analytically introduced. The numerical results by the mathematical model indicated the effects of geometrical configuration of the crease equivalent length of the PVDF on the control properties.(3) Vibration characteristics to control creased membrane with PVDF are experimentally investigated.(4) To apply the PVDF for controlling inflatable structures, the structural properties of the inflatable structures are examined.