Topology Optimization of Upper Turntable of General Vertical Rocket Rivet Fixture

Abstract

In this paper, analysis and design of an upper turntable of general vertical rocket rivet fixture are presented by employing the finite element methods and topology optimization design which are based on the variable density method, in order to reduce the mass and volume of the turntable of general vertical rocket rivet fixture and improve rivet precision. During the design the loadcase is considered: constant force and torque, which is simplified and closer to actual working conditions. From static analysis of the original turntable, a topology optimization model was set up. By using topology optimization calculations a new turntable model was built and the analysis of it using finite element methods was carried out. Comparison between the optimized model and original was conducted and the results show that the stiffness was remarkably improved, the stress was well-distributed and the displacement was reduced after optimization. For designing other complicated structures this method can also provide reference and guidance.