摘要
介绍了液压助力转向系统的基本组成和工作原理,为解决传递函数法在液压助力转向系统(HPS)仿真建模中的局限性,运用仿真软件AMESim建立了机液耦合的仿真模型。仿真分析了HPS系统中扭杆刚度、液压缸活塞直径、系统供油量三者对齿条位移动态响应的影响。结果表明:减小扭杆刚度对系统的动态响应影响不大,而增大液压缸活塞直径和系统供油量对其影响较大。仿真结果为HPS系统的设计和优化提供了理论依据。
The basic structure and the principle of hydraulic power steering system were introduced. The mechanism-liquid coupled simulation model is modeled by simulation software AMESim in order to solve the limitations of transfer function method in hydraulic power steering system（HPS） simulation model. The simulation analyzed the dynamic response of rack displacement influence among torsional stiffness, hydraulic cylinder piston diameter and system fuel supply amount in HPS system. The results showed that reducing the rigidity of torsion bar had little effect on dynamic response of the system, while increasing hydraulic cylinder piston diameter and system fuel supply amount had a great impact. This result provided the theoretical foundation for the design and optimization of HPS system.
出处
《大连大学学报》
2015年第3期27-31,共5页
Journal of Dalian University
关键词
液压助力转向
仿真
建模
动态响应
hydraulic power steering
simulation
modeling
dynamic response
