摘要
以Optistruct软件为平台,以汽车盘式制动器为例,将三维拓扑优化技术应用于制动钳轻量化设计中,对采用变密度拓扑优化方法的拓扑优化技术进行了研究。以汽车紧急制动工况为边界条件,以制动钳的总柔顺度最小化为优化目标函数,以制动钳质量为约束条件,对制动钳进行拓扑优化。在考虑加工、装配等因素的基础上对制动钳重新进行了合理的建模,应用ANSYS软件分析校核了优化后的制动钳模型,结果表明该模型应力分布更为均匀,在保证制动钳刚度的前提下,优化后的制动钳比原型节省材料约11%。
Based on Optistruct software, taking disk brake as an example,in order to apply the 3D topology optimization to the light-weight design of brake caliper,the topology optimization based on the variable density was studied. With performing topology optimization the boundary condition was taken when the vehicle was at the moment of emergency braking, the minimum compliances was taken as the single objective and the mass as the constraint. Considering the factors of machining and assembling, CAD model of the brake caliper was rebuilt. The stress distribution of the optimized brake caliper was analyzed and validated in ANSYS software. According to FEA results, the stress distribution was more symmetrical, the stiffness of caliper was guaranteed,and the weight of optimized model lightened 11% compared to the original model.
出处
《拖拉机与农用运输车》
北大核心
2008年第6期30-31,34,共3页
Tractor & Farm Transporter
基金
浙江省科委科研计划项目(0642124)
浙江省教育厅2007年科研计划项目(20070782)
