【作者】 杜甫； 毛明； 曹建宏； 王宪强； 徐梦岩； 赵倩；

【Author】 DU Fu;MAO Ming;CAO Jianhong;WANG Xianqiang;XU Mengyan;ZHAO Qian;China North Vehicle Research Institute;Technical Center of China Heavy Automobile CO,.LTD;Beijing WKW Automotive Part CO,.LTD;

【机构】 中国北方车辆研究所； 中国重型汽车集团有限公司技术中心； 北京威卡威汽车零部件股份有限公司；

【摘要】 液力惯容器以细长管中流动的流体作为惯性机构,可将较小的油液质量放大数十万倍,得到较大的惯性虚质量,具有结构简单、易于布置等优点。油气弹簧具有良好的非线性特性,而且集弹性和阻尼元件一体,在高端越野车和特种车辆上普遍应用。将液力惯容与油气弹簧集成,在工程上较易实现,为探索集成后力学特性和减振性能,本文推导了液力惯容-油气弹簧集成元件的力学表达式,并建立了悬架二自由度非线性动力学模型,分析了螺旋管直径对车体振动加速度的影响规律,发现惯性力可提高车辆的乘坐舒适性,但幅度较小。更多还原

【Abstract】 Fluid inerter used flowing fluid in spiral tube as inertial mechanism.It could magnify the small oil quality hundreds of thousands of times,and obtain the larger inertia virtual mass.It also had the advantages of simple structure and easy layout Hydro-pneumatic spring had a good nonlinear characteristic,and integrated with stiffness and damping elements,it was widely used in high-end off-road vehicles and special vehicles.It was easy to realize the integration of hydro-pneumatic spring and fluid inerter.In this paper,the two degree-of-freedom nonlinear kinetic model of fluid Inerter and hydro-pneumatic spring integrated component was established,in order to explore the mechanical properties and vibration properties after integration.Through comparative analysis,it was found that the inertia force could reduce the acceleration of suspension mass,but the reduction was small.更多还原