摘要
在车辆动力学模拟计算中,车辆动力学性能主要取决于悬挂参数的匹配,悬挂参数的精确度直接影响车辆动力学模拟计算误差。基于热力学及流体力学理论,建立空气弹簧的统一物理模型,导出其计算的统一数学表达式,提出了确定空气弹簧参数的计算方法,并对影响空气弹簧性能的因素进行了详细的分析。结果表明,空气弹簧气囊外形及刚度、附加气室容积和流孔直径是影响空气弹簧性能的主要因素。
The air spring has been widely used in the fields of highspeed cars and urban transit vehicles because of its excellent dynamics behavior. During the simulation and calculation, it is found that the vehicle system dynamics depends mostly on the matching of the suspension parameters, and the precision of suspension parameters directly relates to the error of simulation and calculation. Based on the theories of thermodynamics and hydrodynamics, the uniform physical model of the air spring is established, and the uniform calculating maths expression on the traditional steel flexcoil spring, and the uniform mathematical expressions are deduced, the calculation method of the air spring parameters is produced. The factors that affect the air spring performance are analyzed in detail. The analysis results show that the air cell shape and stiffness of the air spring, the capacity of the auxiliaty gas chamber and the diameter of the air flow hole are the main factors that affect the performance of the air spring.
出处
《中国铁道科学》
EI
CAS
CSCD
北大核心
2003年第5期91-95,共5页
China Railway Science
基金
铁道部科技研究开发计划项目(2001J013)
关键词
空气弹簧
动力学
参数
理论分析
Air spring
Dynamics
Parameter
Theoretical research
