Influence of linear leaf springs’ hysteresis behavior on vehicle’s ride
-
摘要: 通过分析板簧迟滞特性对车辆在不同路面上行驶平顺性的影响,探讨合理选择板簧悬架减振器阻尼的方法.采用1/4车辆模型,在考虑和不考虑板簧迟滞特性2种情况下分析了车辆在不同路面上的簧载质量加速度均方根值.考虑到模型非线性,采用时域求解,并以随机生成的路面数据和一组实测路面数据作为模型输入.分析结果表明板簧迟滞特性对行驶平顺性的不利影响在良好路面上表现得更为明显,因此减振器阻尼系数应根据路面不平度等级加以选择.对于采用板簧悬架的车辆,减振器在压缩行程和复原行程的阻尼比范围应分别为0.1~0.2和0.2~0.3.Abstract: A method was investigated to select proper damping coefficients of the damper used for the leaf spring suspension, based on the analysis of the influence of leaf springs' hesteresis behavior on vehicle’s riding on different kinds of roads. Based on a quarter vehicle model, the root of mean squared acceleration of sprung mass was analyzed on different grades of roads with and without consideration of leaf springs' hysteresis behavior. The model was solved in time domain due to its nonlinearities. Both randomly produced road data and a group of real road data were used as inputs of the model. Results show the hysteresis behavior is more harmful to vehicle’s riding comfort on a high quality road than on a poor quality road, and therefore the damping coefficients of dampers should be selected according to road grades. For vehicles with leaf spring suspensions, the dampers’ damping ratios for jounce travel should be 0.1~0.2 and that for rebound travel be 0.2~0.3.
-
Key words:
- leaf springs /
- hysteresis damping /
- riding comfort
-
[1] Gotoh T, Imaizumi T. Optimization of force action line with new spring design on the macpherson strut suspension for riding comfort[J] SAE Technical Paper Series 2000-01-0101, 2000:108~114 [2] Hukushima N. Effect of suspension friction for the riding comfort[J] Journal of Society of Automotive Engineers of Japan, 1979,11(22):33~44 [3] Hamano T, Kawashima K, Kato H. Analysis of hysteresis behavior of leaf springs with FEM(1st report, basic formulation of a special contact element for the beam-element-models) . In:Proceedings of Mechanical Society of Japan (Section A) . Tokyo:Mechanical Society of Japan, 1998.1521~1528 [4] Hamano T, Kawashima K, Kato H. Analysis of hysteresis behavior of leaf springs with FEM (2nd report, application of special contact element to multi-leaf spring modeled by beam element) . In:Proceedings of Mechanical Society of Japan( Section A) . Tokyo:Mechanical Society of Japan, 1998.2408~2414 [5] 丁能根, 马建军. 钢板弹簧迟滞特性的有限元分析[J] 汽车工程, 2003, 25(1):12~14 Ding Nenggen, Ma Jianjun. Finite element analysis on the hysteresis behavior of leaf springs[J] Automotive Engineering, 2003, 25(1):12~14(in Chinese) [6] 余志生. 汽车理论[M] 北京:机械工业出版社, 1979. 202~205 Yu Zhisheng. Automobile theory[M] Beijing:China Machine Press, 1979. 202~205(in Chinese) [7] 关 治, 陈景良. 数值计算方法[M] 北京:清华大学出版社, 1990. 250~261 Guan Zhi, Chen Jingliang. Numerical computation methods [M] Beijing:Tsinghua University Press, 1990. 250~261(in Chinese) [8] Thompson A G, Davis B R, Salzborn F J M. Active suspensions with vibration absorbers and optimal output feedback control [J] SAE Technical Paper 841253, 1984:698~707
点击查看大图
计量
- 文章访问数: 2358
- HTML全文浏览量: 86
- PDF下载量: 233
- 被引次数: 0