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摘要油气弹簧是油气悬架的关键元件之一,其在汽车领域和航天领域应用广泛,目前,国内只有少量的单位能够完成油气弹簧的设计,产品的质量与国外还存在一定的差距,因此,油气弹簧的设计对挺高我国自主研发能力、打造名族品牌具有深远的战略意义。28954
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本文概述了重型车辆油气悬架国内外研究现状。根据所给车辆相关性能要求，设计油气弹簧总体结构，并完成节流阀片厚度、缸体、连接体等各部分零件的设计。在建立三文模型的基础上，用ANAYS软件的fluent模块对限位装置进行流体分析，分析限位装置两端的压差，验证限位装置的强度是否满足要求，保证限位装置与节流阀片正常工作。建立简单、合理的油气弹簧数学模型。根据所给悬架资料，计算车轮运动参数，验证所设计油气弹簧是否满足指标要求。
关键词 油气悬架 三文模型 ANAYS分析 fluent分析 数学模型）
毕业论文设计说明书外文摘要
Title Design of heavy tactical vehicle suspension system
Abstract
Hydro-pneumatic spring, which is widely used in the automotive and aerospace, is one of the key components of hydro-pneumatic suspension. Now, in China, only a small number of units can complete the design of hydro-pneumatic spring. And the quality fell behind. So the design of hydro-pneumatic spring has a great significance on the improvement of independent research ability and building national brands.
This paper summarizes the current research status of heavy vehicle at home and abroad. This paper summarizes the current research status of heavy vehicle at home and abroad. On the basis for the establishment of a three-dimensional model, finite element analysis software with ANAYS, verification of the key components of the strength whether meet the requirements and the derivation of throttle slice model is correct, using fluent simulation module of oil flow limit device and analysis limit device at both ends of the pressure difference and throttle valves at both ends of the pressure difference, valve safety work and valves are not coupled to guarantee. Simple and reasonable oil and gas spring mathematical model established by MATLAB software write simulation program of oil and gas bomb Ferney, external characteristics and different parameters are obtained when the characteristic curve analysis, the effects of different parameters.
keywords Oilgas suspension, The 3D model, ANAYS analysis, Fluent analysis Mathematical model
目 次
1 绪论 1
1.1 油气悬架研究目的及意义 1
1.2 油气悬架的国内外发展现状 1
1.2.1 国外研究现状 1
1.2.2 国内研究现状 1
1.3 研究内容与方法 2
2 油气弹簧的总体结构设计 3
2. 1油气弹簧缸体尺寸的确定 3
2.2 节流阀片厚度设计 5
2.3 节流阀片限位装置的设计 6
2.4 导向宽度的设计 7
2.5 密封件的选取 8
2.6 连接体的设计 10
3 限位装置的有限元分析 13
3.1 有限元理论简述 13
3.2 用fluent模块对限位装置进行分析 15
3.2.1建立限位装置分析模型。 15
3.2.2 使用fluent模块求解压力 16
4 油气弹簧数学模型建立 19
4.1 单气室油气弹簧受力分析 19
4.2 建立油气弹簧弹性力数学模型 20
4.2.1 气体状态的选取 20
4.2.2 弹性力数学模型 21