Design And Dynamic Simulation Analysis For The Sleeve Type Of Deployable Structure

Space deployable mechanism has been used widely with the development of astronautics; the study on space deployable mechanism has also become a hot topic. This paper reviewed the application of space deployable structures status, and described the significance of the electronic field boom and electron boom of. Meridian Engineering. Telescopic tubular boom is designed and analyzed on Kinematics, the contact in its stretching process is analyzed on dynamics. This paper provides useful reference to study space deployable mechanism more deeply.At first part of the thesis, the space deployable mechanism is introduced. The three-dimensional models of the boom were built and assembled by using UG, and then the multi-body dynamics fundamental theories and virtual prototype Technology are discussed. The dynamic characteristic of the model proved the successful deploying. To make the model more accurate and reliable, the FEA model of boom is established and dynamics simulated. The results show that the spin speed and the rod length both have some effect to the impact stress in the deploying process. The results show the feasibility of the space deployable structure some problems, which can give reference for the research of the deployable mechanism.Based on a comprehensive survey of previous research work on virtual prototype, the innovative points in this thesis are as follows:1. For the dynamics simulation of spacecraft deployable mechanism, the sleeve-type extension boom is analyzed by the integrated application of CAD three-dimensional design software, multi-body dynamics simulation software and finite element analysis software. The application by uniting three main software interfaces were attempted to practice the mechanical design and structural design of unified coordinated approach. One method for studying the space deployable structure by computer aided engineering is provided.2. In the deployment dynamics simulation of the sleeve-type space deployable structures, the non-linear explicit transient dynamics finite element analysis of contact force replace the rigid body dynamic analysis with the impact functions to calculate the stress produced by the collision process for the first time, which is a meaningful exploration.