湖南大学学报（自然科学版）Issue(1)：45-52,8.
风与车流联合作用下在役桥行车舒适性研究
Ride Comfort of Existing Bridges under Combined Loads of Traffic and Wind
摘要
Abstract
The existing studies of ride comfort are based on wind-vehicle-bridge coupled vibration, which seldom consider the effects of both traffic random characters and road surface progressive deteriora-tion,thus they cannot match very well for the real situation of the bridge under the random traffic loads. Based on wind-traffic-bridge system under random traffic loads,this paper studied the ride comforts taking into account the road surface progressive deterioration.We presented a three-dimensional vehicle model with 24 degrees-of-freedoms (DOFs)including a three-dimensional suspension seat model and longitudinal vibration of the vehicle,and then introduced an improved CA model considering the influence of the next-nearest neighbor vehicle and a progressive deterioration model for road-roughness.The wind-traffic-bridge coupled equations were established by combining the motion equations of both the bridge and vehicles using the displacement relationship and interaction force relationship at the patch contact.The numerical simula-tions show that the proposed method can rationally simulate the vibration of the wind-traffic-bridge coupled system;and the 3-D vibrations of the driver seat model can significantly affect the drive comforts.关键词
风/车流/桥梁耦合振动/三维车辆模型/路面退化/行车舒适性Key words
wind-traffic-bridge coupled vibration/three-dimensional vehicle model/road surface pro-gressive deterioration/ride comfort分类
建筑与水利引用本文复制引用
殷新锋,丰锦铭,杨小旺,刘扬..风与车流联合作用下在役桥行车舒适性研究[J].湖南大学学报（自然科学版）,2016,(1):45-52,8.基金项目
国家自然科学基金资助项目（51108045），National Natural Science Foundation of China（51108045）；国家重点基础研究发展（973）计划项目（2015CB057700）；湖南省高校创新平台开放基金资助项目（13k051）；长沙理工大学桥梁工程安全控制省部共建教育部重点实验室开放基金资助项目；长沙理工大学桥梁与隧道工程重点学科基金资助项目 （）
