Multidisciplinary collaborative topology optimization method for perforated plates

Abstract

Perforated plate is a connection structure able to provide variety of functions such as load-bearing and flow-through capabilities. The current designs of perforated plate are mostly obtained by optimization after establishing an initial model empirically, ignoring the influence across different disciplines and lacking a systematic design process. In this study, we proposed a multidisciplinary topology optimization method to address the design issues of holes on perforated plates. The response states of perforated plate in structural mechanics, fluid mechanics, and vibration were determined using disciplinary analysis, and a single disciplinary topology optimization model was established based on this. A multidisciplinary topology optimization model was constructed based on the disciplinary coupling relationship and collaborative optimization method, with material retention as a shared variable. The continuous change process of materials was discretized by taking a finite number of values for shared variables, and the trend of topology optimization results with respect to material retention was obtained. The hole parameters were converted individual hollow parameters of the material by establish functional and process, and the final topology optimization result was obtained by combining partition collaboration. The method and process were used to optimize the connecting plate of top nozzle, and the results showed higher comprehensive performance compared to engineering case.