扭杆油气复合悬挂特性研究
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摘要
建立了复合悬挂弹性特性数学模型,分析了复合悬挂设计中的静载荷分配和由温升带来的车姿变化对特性的影响。结果表明:扭杆油气复合悬挂的实质是集成纯油气悬挂和纯扭杆悬挂各自的优势,并使弹性元件可靠性显著提高;在工程设计中,复合悬挂静载荷分配系数应在0. 5～0. 8,以权衡行驶平顺性和弹性元件可靠性。
Mathematical model of combined suspension spring characteristics were established. The problem of static load distribution in the design of combined suspension and suspension characteristic change by posture variation caused by temperature rise were studied. The results show that the essence of torsion rod hydro-pneumatic combined suspension was to compromise the ride comfort between pure hydropneumatic suspension with pure torsion rod suspension,and to improve the reliability of elastic elements.In engineering design,the static load distribution coefficient should be between 0. 5 and 0. 8 to balance the conflict between ride comfort and vehicle posture change.
Mathematical model of combined suspension spring characteristics were established. The problem of static load distribution in the design of combined suspension and suspension characteristic change by posture variation caused by temperature rise were studied. The results show that the essence of torsion rod hydro-pneumatic combined suspension was to compromise the ride comfort between pure hydropneumatic suspension with pure torsion rod suspension,and to improve the reliability of elastic elements.In engineering design,the static load distribution coefficient should be between 0. 5 and 0. 8 to balance the conflict between ride comfort and vehicle posture change.
引文
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[2]杜甫,毛明,陈轶杰,等.基于动力学模型与参数优化的ISD悬挂结构设计及性能分析[J].振动与冲击,2014,33(6):59-65.
[3]毛明,张亚峰,杜甫,等.高机动履带车辆行驶系统中的5个科学技术问题[J].兵工学报,2015,36(8):1456-1555.
[4]江洪,王子豪,孔亮.半主动空气悬架的神经模糊控制[J].重庆理工大学学报(自然科学),2017(3):1-11.
[5]琚龙玉,李仲兴,江洪,等.附加气室容积可调空气悬架多目标参数匹配[J].汽车技术,2014(6):29-33.
[6]杨明明.车辆悬挂系统非线性振动特性研究[D].兰州:兰州交通大学,2014.
[7]仝军令,李威,傅双玲.油气弹簧主要参数对悬架系统性能的影响分析[J].系统仿真学报,2008,20(9):2271-2274.
[8]史忠校.油气悬挂减振系统动力学研究[D].哈尔滨:哈尔滨工程大学,2017.
[9]闫清东.坦克构造与设计(下册)[M].北京:北京理工大学出版社,2007.