Dynamic Analysis Of The Deployment Process Of Deployable Space Structure

As a new kind of structure,the deployable structure is more and more widely used in the fields of astronautics,building structure and military engineering,etc.Based on referring the application of deployable space structure and the research actuality of its deployment process, this dissertation described the theoretical basis employed to analyze the deployment process of deployable space structures.With the natrual coordinate of truss joints as variables in the Cartesian coordinates,the deployment process of the circular truss deployable antenna and the tetrahedral truss modular deployable antenna was analyzed by combining the generalized inverse matrix and multi-body dynamics theory in this dissertation.The most attention was paid to the formulation and solving method of dynamic equations of a constrained system .Deployment analysis of deployable truss structures with flexible deformation was discussed.Based on the kinetics relation and equilibrium equation of the structure, a new hybrid method was developed to analyze deployable truss structure with mechanism motion and flexible deformation by using the generalized inverse matrix theory,and the coupling between these two motions was calculated.This dissertation applied table-flap consisted of breakdown of the plane triangular unit to simulate the geometry of shell plates. Describing shell plate unit with both sides of the triangle and the included angel, this dissertation analyzed the deployment process by combining the generalized inverse matrix and multi-body dynamics theory.