Clearance And Virtual Assembly Study Of Space Optical Precise Deployable Mechanism

Take the parametric slider-crank mechanism with clearance and space optical deployable mechanism as the research object. The main work of this paper is described in details as follows:Firstly, three methods of clearance model establishment are explored in ADAMS, such as: solid to solid, user subroutine, circle in circle, then constructed a parametric slider-crank model with design point in ADAMS. With methods of design study and design of experiment, contact parameters influencing impact force have been thoroughly studied in this paper, and found out the main influence factors. finally, considering the environment of gravity and no gravity, obtained the relationship between the average impact force and the main contact parameters. This conclusion is meaning for assembly, estimating the average impact force, and reducing the peak value of impact force.Secondly, the interface module Mechnism/Pro requires the version match between PRO/E and ADAMS, otherwise, it can't transfer data from PRO/E to ADAMS. The middle files of the process of data transferring are also investigated in this paper. then according to the position and orientation of part in assembly, the RENDOR format file are exported, which has the information of part pose, and then imported to ADAMS,at the same time ,endowed with the attributes of material. Based on the same method above,the model neutral file are created in ANSYS, combined with geometry construction function of ADAMS itself, and then added constraints and drive, finally, the virtual assembly of space optical deployable mechanism of rigid and flexible body with clearance.is established.Thirdly,a single sub-assemly is abstracted, at the same time ,under the circumstances of different clearances , ideal constraints, rigid body, and flexible body are considered, the dynamic simulations are fulfilled.