改进遗传算法的铁路机车横向减振器位置优化

Research on the position parameters optimization of lateral damper in railway vehicle based on genetic algorithm

抗运行振动设计是铁路机车制造中的关键问题,利用横向减振器可有效降低机车振动。然而,减振器在整车结构中的安装位置直接影响振动控制效果,位置参数的优化意义重大。针对此问题,进行了优化模型的建立,提出了改进的遗传算法并将其应用于铁路机车横向动力学研究中,以车辆蛇行失稳临界速度为优化指标,设计了横向减振器位置的多参数优化方案,并基于Matlab软件的GADS工具箱进行了优化实现。实际结果验证了优化方案的科学性和有效性,为铁路机车制造中横向减振器的安装优化提供了有力支持。

Operating vibration resistance design is a key issue in the rail vehicle manufacture. Using transverse vibration-shock absorbers can decrease vehicle effectively. However, the installation location of the shock absorber in the vehicle structure vibra- tion can effect on the control effect directly. So, the establishment of optimization model and genetic algorithm applied to the rail vehicle lateral dynamics study, multi-parameter optimization design of lateral damper position,based on Matlab optimization tool- box. Actual results demonstrate the feasibility and effectiveness of optimization, and it can provide strong support to the optimiza- tion of transverse dampers installation in rail vehicle manufacture.