油气悬挂毕设说明书详解.docx

毕业设计说明书基于AMESim的油气悬挂模型建立及分析学生姓名： 学号：学 院：专 业：指导教师：2016年 6 月基于AMESim的油气悬挂模型建立及分析摘 要 随着经济和技术的发展，基础设施技术含量越来越高，对于矿用机械和矿用车辆，改善其性能的重要技术手段就是优化悬挂控制策略和优化悬挂参数，矿用车长时间运行且在恶劣环境中作业，那么油气悬挂需要更稳定和更可靠的性能，为了降低成本，缩短开发周期，合理地设计和模拟其性能显得非常重要，因此对油气悬挂的研究有重要的意义。 了解和对比各种油气悬挂的特点，选外置气室油气分隔式悬挂作为研究对象，分析其结构、特点和原理，假设温度、气体可变系数、油液密度等为常量，建立油气悬挂数学模型，并利用AMESim软件建立相应的油气悬挂模型，进行模拟仿真，分析系统模型中对车身位移特性、加速度特性有影响的变量，变量有油缸内径、活塞杆直径、蓄能器初始压力、蓄能器初始体积、阻尼孔直径等，改变这些变量数值，仿真分析其对这些特性的影响。通过分析不同参数对悬挂刚度、悬挂阻尼影响，总结其规律，提出优化设计悬挂参数数值的方案。关键词：AMESim，油气悬挂，悬挂刚度，悬挂阻尼Analysis for Hydro-pneumatic Suspension based on AMESimAbstractWith the development of economy and technology, infrastructure, more and more high technology , to mine machinery and mine car, improve its important technical means is to optimize the performance of suspension control strategies and optimization of suspension parameters, mine car is running for a long time and operation in the bad environment, so the hydraulic pneumatic suspension needs more stable and reliable performance, in order to reduce costs, shorten the development cycle, a reasonable design and simulated its performance that is very important, so the study of hydraulic pneumatic suspension has an important significance. To understand and compare the characteristics of various hydraulic pneumatic suspension, choosing the outer chamber separation of hydraulic pneumatic suspension as the research object, analyses its structure, characteristics and principles, assumptions, such as temperature, the density of the oil, gas, variable coefficient are constant, the mathematical model of the hydraulic pneumatic suspension and corresponding oil and gas suspension model is established by using AMESim software, carries on the simulation and analysis system model of displacement and acceleration characteristics for the bodies of influential variables, variables have cylinder bore and piston rod diameter of initial pressure and the accumulator volume and accumulator, damping hole diameter, etc., then changi