Formulation and experimental validation of flexible structure for space application which is subjected to large deformation.

建立了空间柔性展开结构的基本要素--二维柔性梁的数学模型。建立了基于绝对节点坐标表示法(ANCF)和常规内粘性模型的数学模型，并考虑了所提出的空气阻力模型。由于展开结构经常经历大转动和大变形的运动，因此重点研究了动力刚化效应。对常规内粘性模型和空气阻力模型的实验验证表明，两者具有较好的对应性。

Mathematical model is constructed for a 2-dimensional flexible beam as elemental factor of flexible deployment structure for space applications. The mathematical model is constructed based on Absolute Nodal Coordinate Formulation (ANCF) method and conventional internal viscosity model and proposed air drag force model are considered in the formulation. A dynamic stiffening effect which is a motion with large rotation and deformation is focused on because deployment structures often experience such an effect. Experimental validations about conventional internal viscosity model and air drag force model show good correspondences.