磁流变阻尼器的有限元参数优化设计

磁流变阻尼器结构优化设计是高性能磁流变阻尼器研制及应用的关键技术。在传统磁流变阻尼器设计方法的基础上,将有限元分析方法引入结构优化设计程序中。针对某汽车磁流变阻尼器的设计、开发,建立了优化模型,提出了磁流变阻尼器优化设计计算流程。采用有限元分析软件ANSYS的参数化编程语言APDL(ANSYS Parametric Design Language),对汽车磁流变阻尼器的结构参数进行了优化。研究结果表明:采用参数化编程语言APDL程序对磁流变阻尼器进行优化设计,结构体积明显减小,磁场分布更加合理,能量利用率增加,阻尼力调节范围满足实际工程需要,优化设计方法是可行和有效的。

Design optimization of magneto-rheological damper based on finite element parametric language

Design optimization of Magneto-rheological (MR) dampers is important to meet engineering applications and obtain MR dampers with better performance compared with that designed by conventional design methods. Optimal design of MR dampers in vehicle based on Finite Element (FE) is proposed. A mathematical model to describe optimization problem is constructed. In the optimization, the special cylindrical volume filled with active fluid is considered as the objective function, and the controllable range of damping force is constrained to satisfy the requirements of semi-active control system in vehicle. An optimization procedure is constructed via a commercial finite element method parametric design language. Optimization design of the MR damper with valve mode in vehicle is performed by using the optimization tool developed. The results show that the optimal MR damper has minimum volume, reasonable magnetic flux density distribution, effective energy consumption and the controllable damping force to satisfy the requirement of semi-active control system in vehicle. The results demonstrate the effectiveness and feasibility of the proposed optimization approach.