基于OptiStruct 的某机载设备托架形貌优化

以某机载设备托板优化设计为例,介绍了形貌优化的基本原理和方法,基于OptiStruct 软件对原设计托板加强筋设计进一步优化,根据优化结果进行圆滑过渡并完成数字建模,考虑机载设备的轻量化要求完成减重设计。使用Ansys 对优化前后的托板模态、频率响应进行分析对比,使托板的1 阶模态频率提高了123. 5%,并高于机载环境振动频率范围,有效提升了托板的结构稳定性。

Topography Optimization of an Airborne Equipment Bracket Based on OptiStruct

Taking an airborne equipment bracket design as an example, the basic principle and method of topography optimization were introduced. The original design of stiffeners was further optimized based on OptiStruct. According to the optimization results, the smooth transition was carried out and the digital modeling was completed.Ansys was used to analyze and compare the modal and vibration response of the pallet before and after optimization,and the first mode frequency of the pallet was increased by 123.5%, which was higher than the vibration frequency range of airborne environment, and the structural stability of the pallet was improved effectively.