摘要
独立式油气悬架在工程车辆上的使用,不仅为整车总体布置提供方便,也为车辆行驶平顺性和操纵稳定性的提升提供可能。根据油气悬架的特性和整车悬架的结构特点,建立油气悬架车辆半车动力学数学模型,在分析建模的基础上,应用考虑交互作用的正交试验法和极差分析法,以稳态转向不足转向度和质心垂向加速度均方根作为试验目标,研究前后油气悬挂缸缸径、阻尼孔径以及悬架充气量对对整车综合性能影响程度。结果表明,前后悬挂缸充气量的交互作用对整车操纵稳定性和行驶平顺性都有较大程度的影响;经过对前后悬架结构参数优化设计后,使得整车综合性能有所提高,尤其是车辆的行驶平顺性改善较为明显。
The use of detached hydro-pneumatic suspension, not only provide convenience for the general arrangement of the vehicle, also improve vehicle riding comfort and handling stability. According to the characteristics of hydro-pneumatic suspension and the vehicle suspension, 1/2 vehicle vibration mathematical model with hydro-pneumatic suspension was built. On the basis of analysis the model, the methods of DOE experimental design and range analysis was used to study the influence of the structure parameters and the interaction of factors of front and rear hydro-pncumatic suspension cylinder bore, damping aperture and suspension aeration rate to the vehicle performance. Test results show that suspension cylinder has a great influence on the vehicle steering stability and riding comfort. After optimization design of the structural parameters of front and rear hydro-pneumatic suspension, automobile comprehensive performance has improved, especially vehicle riding comfort improvement is more obvious.
出处
《机械设计与制造》
北大核心
2017年第4期59-62,67,共5页
Machinery Design & Manufacture
基金
国家自然科学基金青年基金项目(51305475)
重庆市基础与前沿研究计划项目(cstc2013jcyjA60004)
关键词
油气悬架
正交试验法
极差分析
优化设计
平顺性
操纵稳定性
Suspension
Orthogonal Experiment Design
Range Analysis
Optimization Design
Riding Comfort
Handling Stability
