汽车工程 ›› 2021, Vol. 43 ›› Issue (6): 934-942.doi: 10.19562/j.chinasae.qcgc.2021.06.018

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复合材料板簧的迟滞特性建模与试验研究

刘鹤龙1,史文库1,高蕊2,陈志勇1(),陈晃2,孙云龙3   

  1. 1.吉林大学,汽车仿真与控制国家重点实验室,长春 130022
    2.中国重汽集团汽车研究总院,济南 250100
    3.哈尔滨玻璃钢研究院有限公司,哈尔滨 150036
  • 收稿日期:2020-12-08 修回日期:2021-01-05 出版日期:2021-06-25 发布日期:2021-06-29
  • 通讯作者: 陈志勇 E-mail:chen_zy@jlu.edu.cn
  • 基金资助:
    国家重点研发计划(2018YFB0106203);吉林省发改委产业技术研究与开发项目(2019C041-4);吉林省重点科技攻关资助项目(20170204063GX)

Modeling and Experimental Study on Hysteresis Characteristic of Composite Leaf Springs

Helong Liu1,Wenku Shi1,Rui Gao2,Zhiyong Chen1(),Huang Chen2,Yunlong Sun3   

  1. 1.Jilin University,State Key Laboratory of Automotive Simulation and Control,Changchun 130022
    2.Automotive Research Institute of China National Heavy Duty Truck Group Co. ,Ltd. ,Jinan 250100
    3.Harbin FRP Institute Co. ,Ltd. ,Harbin 150036
  • Received:2020-12-08 Revised:2021-01-05 Online:2021-06-25 Published:2021-06-29
  • Contact: Zhiyong Chen E-mail:chen_zy@jlu.edu.cn

摘要:

运用Bouc?Wen摩擦学理论建立了复合材料板簧的迟滞特性模型,根据台架试验测得的动态力-位移曲线,利用改进的乌鸦搜索算法(MCSA)进行了模型的参数辨识。仿真结果与试验结果吻合较好,表明该模型能准确预测复合材料板簧的迟滞特性。建立考虑复合材料板簧迟滞特性的整车7自由度动力学模型,分析了在随机路面激励下,复合材料板簧迟滞特性对整车动态响应的影响。结果表明,复合材料板簧的迟滞特性使簧载质量的质心加速度增加,板簧的回复力增大,而悬架的动挠度减小。该研究为复合材料板簧的整车匹配和精细化动力学建模提供参考。

关键词: 复合材料板簧, 迟滞特性, 平顺性, Bouc?Wen模型, 乌鸦搜索算法

Abstract:

Bouc?Wen tribology theory is applied to the setting up of the hysteresis characteristic model of composite leaf springs, and according to the dynamic force?displacement curves obtained by bench test, the model parameters are identified by using the modified crow search algorithm (MCSA). The simulation results well agree with the test ones, showing that the model can accurately predict the hysteresis characteristic of composite leaf spring. A seven DOF vehicle dynamic model is established with consideration of the hysteresis characteristic of composite leaf spring, and the influence of the hysteresis characteristic of composite leaf springs on the dynamic response of vehicle under random road excitation is analyzed. The results indicate that the hysteresis characteristic of composite leaf spring increases the mass?center acceleration of sprung mass and the restoring force of leaf spring, and reduces the dynamic deflection of suspension. This study provides a reference for the vehicle matching and the refined dynamic modeling of composite leaf springs.

Key words: composite leaf spring, hysteresis characteristic, ride comfort, Bouc?Wen model, crow search algorithm