Abstract:In order to study the dynamic response of asphalt pavement under the condition of vehicle dynamic load and tire-pavement nonlinear contact, the rubber tire model and vehicle-road interaction model were established by ABAQUS and solved by the central difference method. The applicability of the rubber tire model and vehicle-road interaction model was verified. The results show that: the vehicle-road interaction model with the consideration of rubber tire is feasible. Compared with the concentrated force, the vertical strain at the midpoint of the upper layer wheel trace under the dynamic load is increased by 39.17%; compared with no road roughness, under the action of B-grade road and C-grade road, the suspension elasticity is increased by 3.36% and 14.34% respectively, and the vertical displacement at the midpoint of the upper layer wheel trace is increased by 18.51% and 59.76% respectively. There are tension and compression alternation in vertical, longitudinal and transverse directions of asphalt surface: with the increase of pavement depth, the longitudinal tensile strain appears in both subbase and soil foundation; the maximum longitudinal tensile strain appears in the soil foundation; the maximum transverse tensile strain and the maximum transverse compressive strain appear in the lower layer.
[1] 董泽蛟,谭忆秋,欧进萍.三向非均布移动荷载作用下沥青路面动力响应分析[J].土木工程学报,2013,46(6):122-130.
DONG Zejiao, TAN Yiqiu, OU Jinping. Dynamic response analysis of asphalt pavement under three-directional nonuniform moving load [J]. China Civil Engineering
Journal, 2013,46(6):122-130.
[2] 黄志义,陈雅雯,张勤玲.移动荷载作用下热再生沥青路面响应分析[J].铁道科学与工程学报,2019,16(1):107-113.
HUANG Zhiyi, CHEN Yawen, ZHANG Qinling. Analysis of the dynamic response in hot recycled asphalt pavement under moving vehicle loads[J]. Journal of Railway
Science and Engineering, 2019,16(1):107-113.
[3] WANG Hao, Al-QADI I L. The combined effect of moving wheel loading and three-dimensional contact stresses on perpetual pavement response [J].Journal of
Transportation Engineering, 2009,2095(1):53-61.
[4] LIAO J, SARGAND S. Viscoelastic FEmodeling and verification of a U.S. 30 perpetual pavement test section[J]. Road Material & Pavement Design, 2010,11
(4):993-1008.
[5] 陈静云,孙依人.基于接触非线性的车-路耦合系统动力响应分析[J].振动与冲击,2013,32(19).
CHEN Jingyun, SUN Yiren. Dynamic response of a vehicle-road coupled system based on non-linear contact[J]. Journal of Vibration and Shock, 2013,32(19):119-124.
[6] 冯希金.卡车子午线轮胎振动噪声仿真技术研究[D].北京:清华大学,2015:27-28;98-99.
FENG Xijin. Study of the Numerical Simulation of Truck Radial Tires Vibration Noise[D]. Beijing: Tsinghua University, 2015:27-28;98-99.
[7] 廖公云,黄晓明.ABAQUS有限元软件在道路工程中的应用[M].南京:东南大学出版社,2014:297-298.
LIAO Gongyun, HUANG Xiaoming. Application of ABAQUS Finite Element Software in Road Engineering [M]. Nanjing: Southeast University Press, 2014: 297-298.
[8] 庄茁,张帆,岑松等.ABAQUS非线性有限元分析与实例[M]北京:科学出版社,2005:273-276,490-492.
ZHUANG Zhuo, ZHANG Fan, CEN Song. Nonlinear Finite Element Analysis and Examples of ABAQUS[M]. Beijing: Science Press, 2005: 273-276,490-492.
[9] 王立志.子午线轮胎滚动过程动态模拟[D].武汉:华中科技大学,2007:26-37.
WANG Lizhi. Numerical Simulation on the Rolling Process of Radial Tire[D]. Wuhan: Huazhong University of Science and Technology, 2007: 26-37.
[10] 王扬.复杂轮胎力作用下沥青路面力学行为研究[D].北京:北京交通大学,2017.
WANG Yang. Study on Mechanical Behaviors of Asphalt Pavement under Complicated Tire Force[D]. Beijing: Beijing Jiaotong University, 2017.
[11] 严战友,赵晓林,赵国芳,等.整车多轮动载作用下沥青路面动力响应[J].中国公路学报,2020,33(8):119-132.
YAN Zhanyou, ZHAO Xiaolin, ZHAO Guofang, et al. Dynamic response of asphalt pavement under multi-wheel dynamic load[J]. China Journal Highway Transport, 2020,33
(8):119-132.
[12] 张肖宁.沥青与沥青混合料的粘弹性力学原理及应用[M].北京:人民交通出版社,2006:130-132.
ZHANG Xiaoning. The Principle and Application of Viscoelastic Mechanics of Asphalt and Asphalt Mixture[M]. Beijing:China Communications Press, 2006:130-132.
[13] 沈宇鹏,魏庆朝,韩浩,等.不平整条件下过渡段车辆运行平稳性[J].振动、测试与诊断,2018,38(4):792-799.
SHEN Yupeng, WEI Qingchao, HAN Hao, et al. Vehicle smoothness through highway bridge approach under condition of pavement roughness[J]. Journal of Vibration,
Measurement & Diagnosis, 2018,38(4): 792-799.
[14] 洪振宇,田炜,邹丽琼.子午线轮胎的滚动瞬态碰撞有限元分析[J].机械设计与制造,2018(6):148-149.
HONG Zhenyu, TIAN Wei, ZOU Liqiong. Rolling transient collision analysis of radial tire based on FEM[J]. Machinery Design & Manufacture, 2018(6):148-149.
[15] 邓露,何维,俞扬,等.公路车-桥耦合振动的理论和应用研究进展[J].中国公路学报,2018,31(7):38-54.
DENG Lu, HE Wei, YU Yang, et al. Research progress in theory and application of highway vehicle-bridge coupling vibration[J]. China Journal Highway Transport,
2018,31(7):38-54.
[16] 李慧乐,夏禾,宗周红.列车作用下桥梁应力响应计算方法比较[J].东南大学学报(自然科学版),2017,47(3):576-583.
LI Huile, XIA He, ZONG Zhouhong,et al. Comparison of computation methods for stress response of bridges under train load[J]. Journal of Southeast University
(Natural Science Edition), 2017,47(3):576-583.