摘要
建立了简化的 1 / 4车辆模型 ,并对车辆的动载荷特性进行分析 ;描述了反映路面不平度的波数功率谱密度 [Su( k) ]与时间角频率谱密度 [Su( w) ]的关系 ,运用频域模拟分析方法计算了车辆动载荷的功率谱密度、均方根偏差与动载系数 ,并且分析了车速与路面不平度对车辆动载荷变化的影响 .
One simple vehicle model (quarter-car model) is derived and the characteristics of dynamic tyre forces are detailed. At the same time, the relationship between the wavenumber spectral density and frequency spectral density is established. Then a method is developed for frequency domain simulations of dynamic tyre forces of linear vehicles to calculate the force spectral density, the RMS dynamic load and the Dynamic Load Coefficient (DLC); and the effects of vehicle velocity and roadway surface condition on dynamic load variation are discussed. The results could provide theoretical foundation for the further study of the pavement dynamic response.
出处
《华中科技大学学报（城市科学版）》
CAS
2003年第4期47-50,共4页
Journal of Huazhong University of Science and Technology
基金
西部交通建设科技项目 ( 2 0 0 2 3 180 0 0 3 2 )
