Development Of A Software For Structural Optimization With ANSYS Analyzer--For Combination Structure Of Truss And Frame

Based on previous research works of structure optimization design, from the practical need of engineering application, this paper extended functions of the software SOGA which can only optimize truss structure by using ANSYS software as a analysis tool, in order to further optimize the combination structure of truss and frame .So the practicability of SOGA software has greatly been improved.The paper mainly studied some ANSYS data files, realized the analytical sensitivity analysis of five typical section beam (circle section beam, rectangle section beam, GONGZI section beam, box section beam and cirque section beam) and data interchange between optimization module and analysis module, integrated ANSYS with Guide-weight criteria method and formed a universal and efficient optimization software of combination structure of truss and frame. It emphatically discussed the analytical sensitivity analysis of two kinds of detail measurement variables of section and feature variables of section and successfully solved the difficulty that is how to get analytical sensitivity of combination structure of truss and frame and fulfilled optimum design of dynamics and static and intensity and stiffness for link system structure. Through successfully optimizing. structures of several section beams, the results proved the development of the software is correct and feasible, fully used the advantages of ANSYS and Guide-weight method which is high effective, convenient and practical. In order to decrease the scale of optimal constraints, this paper adopted the method of enveloping to normalize variables and envelope objective function and constraint functions, so the number of constraints greatly decreases and the efficiency of computing has greatly improved.