矿用汽车减振平衡蓄能器多态性能的研究  

Multimode capability study of accumulator of shock absorption and balance on mine vehicle

作　　者：张宏[1] 

机构地区：[1]煤炭科学研究总院太原研究院,山西太原030006

出　　处：《煤炭学报》2010年第9期1566-1570,共5页Journal of China Coal Society

基　　金：山西省青年科技研究基金资助项目(2008012006-1)

摘　　要：根据矿用汽车油气悬架的特征对蓄能器进行了选择,分析了某型井下胶轮车油气悬架系统的组成结构及液压系统的工作原理,建立了其油气悬架系统数学模型,并运用AMESim进行了系统仿真。分析表明,蓄能器在不同预充压力相同路面激励的作用下,蓄能器内气体压力和容积呈周期变化,油气悬架的位移特性非线性特征显著;当预充压力增大时,车体振动加速度减弱,相同位移的油气悬架输出力增加,油气悬架刚度变小。改变蓄能器的充气压力可以改变油气悬架的刚度,提高矿用汽车对恶劣路况的适应性,有利于汽车在不平路面上的行驶平顺性。Accumulator was selected by the trait of hydro-pneumatic suspension system for mine vehicle.Composing structure and theory of hydraulic system for hydro-pneumatic suspension system was analyzed based on certain type underground rubber tyre vehicle.Mathematics model was established according to fact condition,and the integration characteristics of hydro-pneumatic suspension system were researched using the software of AMESim.The results show that pressure and volume of inner gas of accumulator represent periodic change,displacement characteristic have nonlinear trait.When beforehand charge pressure of accumulator enhances,vibration of vehicle body lowers,outlet force of same displacement increases,and stiffness of suspension system lowers.Changing of charge pressure can change the stiffness of suspension system,sequentially improve the adaptability of suspension system for complex road,the steer comfort trait gain perfection.

关 键 词：油气悬架 蓄能器 预充压力 位移特性 

分 类 号：TD137.81[矿业工程—矿山地质测量] TD525