振动与冲击
振動與遲擊
진동여충격
JOURNAL OF VIBRATION AND SHOCK
2014年
16期
62-67
,共6页
模型试验%移动荷载%路面响应%动力学
模型試驗%移動荷載%路麵響應%動力學
모형시험%이동하재%로면향응%동역학
model test%moving load%pavement response%dynamics analysis
针对路面结构响应动力学理论模型构造实验模型。经模型试验与数值仿真相结合方法研究移动荷载下路面动力学响应。设计含车辆模型及分布刚度路面模型的车路模型试验系统,其中车辆模型包括谐振源车辆模型及1/4车模型。利用模型试验与数值仿真方法分别对移动简谐激励及冲击激励作用的分布刚度路面动力响应进行研究。数值仿真与试验结果对比表明设计的模型及实验方法可近似模拟车-路耦合作用及路面动力响应。
針對路麵結構響應動力學理論模型構造實驗模型。經模型試驗與數值倣真相結閤方法研究移動荷載下路麵動力學響應。設計含車輛模型及分佈剛度路麵模型的車路模型試驗繫統,其中車輛模型包括諧振源車輛模型及1/4車模型。利用模型試驗與數值倣真方法分彆對移動簡諧激勵及遲擊激勵作用的分佈剛度路麵動力響應進行研究。數值倣真與試驗結果對比錶明設計的模型及實驗方法可近似模擬車-路耦閤作用及路麵動力響應。
침대로면결구향응동역학이론모형구조실험모형。경모형시험여수치방진상결합방법연구이동하재하로면동역학향응。설계함차량모형급분포강도로면모형적차로모형시험계통,기중차량모형포괄해진원차량모형급1/4차모형。이용모형시험여수치방진방법분별대이동간해격려급충격격려작용적분포강도로면동력향응진행연구。수치방진여시험결과대비표명설계적모형급실험방법가근사모의차-로우합작용급로면동력향응。
In order to test the accuracy of the dynamic response of pavement,calculated based on the theoretical model,a new test rig was proposed.With the help of experimental and numerical simulation,the dynamic response of pavement under moving load was investigated.The vehicle-pavement test rig includes a vehicle model and a distributed stiffness pavement-roadbed model,and the vehicle model was simplified as a quarter of resonance source vehicle model. The dynamic response of distributed of stiffness pavement under moving resonance load and shock excitement were analysed respectively.The results show that the designed test rig is usable,and the experiment results can meet closely with the numerical results.