西南交通大学学报
西南交通大學學報
서남교통대학학보
JOURNAL OF SOUTHWEST JIAOTONG UNIVERSITY
2009年
6期
806-811,829
,共7页
跨座式单轨交通%PC轨道梁%车桥耦合振动
跨座式單軌交通%PC軌道樑%車橋耦閤振動
과좌식단궤교통%PC궤도량%차교우합진동
straddle-type monorail transportation%PC ( prestressed concrete) rail beam%vehiclebridge coupling vibration
为探讨跨座式单轨交通车桥系统的动力响应,采用线性化轮胎模型建立了15个自由度的跨座式单轨车辆动力学模型.模型考虑了走行轮、导向轮和稳定轮的径向刚度与侧偏效应,并考虑了走行轮的纵向滑转特性.以重庆市跨座式单轨交通典型区段的PC(预应力混凝土)轨道梁为对象,采用自编程序对跨座式单轨车辆过桥时的车桥耦合振动进行了分析,并通过计算与实测结果的对比分析对所建立的理论模型和编制的程序进行了验证.
為探討跨座式單軌交通車橋繫統的動力響應,採用線性化輪胎模型建立瞭15箇自由度的跨座式單軌車輛動力學模型.模型攷慮瞭走行輪、導嚮輪和穩定輪的徑嚮剛度與側偏效應,併攷慮瞭走行輪的縱嚮滑轉特性.以重慶市跨座式單軌交通典型區段的PC(預應力混凝土)軌道樑為對象,採用自編程序對跨座式單軌車輛過橋時的車橋耦閤振動進行瞭分析,併通過計算與實測結果的對比分析對所建立的理論模型和編製的程序進行瞭驗證.
위탐토과좌식단궤교통차교계통적동력향응,채용선성화륜태모형건립료15개자유도적과좌식단궤차량동역학모형.모형고필료주행륜、도향륜화은정륜적경향강도여측편효응,병고필료주행륜적종향활전특성.이중경시과좌식단궤교통전형구단적PC(예응력혼응토)궤도량위대상,채용자편정서대과좌식단궤차량과교시적차교우합진동진행료분석,병통과계산여실측결과적대비분석대소건립적이론모형화편제적정서진행료험증.
In order to discuss the dynamic responses of a straddle-type monorail transportation system,a dynamic model for a monorail vehicle with 15 DOFs (degrees of freedom ) was established by employing the linear tire model. The radial rigidities, side-leaning effects and longitudinal slideturning characteristics of running, steering and stabilizing tires are taken into account in this model.Dynamic responses of a PC ( prestressed concrete) rail beam in a typical section of the straddle-type monorail transportation system in Chongqing City were calculated by using a self-compiled program andcompared with field test results to show the correctness of the established dynamic model and the selfcompiled program.