合肥工业大学学报(自然科学版)
閤肥工業大學學報(自然科學版)
합비공업대학학보(자연과학판)
JOURNAL OF HEFEI UNIVERSITY OF TECHNOLOGY(NATURAL SCIENCE)
2014年
7期
839-844
,共6页
道路工程%连续配筋混凝土路面%冲断%行车舒适性%影响因素
道路工程%連續配觔混凝土路麵%遲斷%行車舒適性%影響因素
도로공정%련속배근혼응토로면%충단%행차서괄성%영향인소
road engineering%continuously reinforced concrete pavement%punch-out%riding comfort%influencing factor
车辆通过连续配筋混凝土路面冲断区域时影响行车舒适性的因素较多,有必要对其进行深入研究并找出主要影响因素。文章首先建立冲断区域人-车-路耦合振动模型,通过求解振动方程获得乘客加速度随时间的变化;然后考虑行车舒适性,以最大瞬态振动值作为行驶舒适性评价指标;最后分析冲断区域数量、行车速度、冲断区域台阶高度、路面纵坡坡度、选取路面板大小和上下坡等因素对乘客行车舒适性的影响。研究发现:当车辆经过冲断区域时,冲断区域数量、行车速度、冲断区域台阶高度和路面纵坡坡度对行车舒适性影响较大。建议当车辆通过冲断区域时,驾驶员可降低车速以提高行车舒适性;当冲断区域台阶高度较大以致严重影响行车舒适性时,应对路面进行维修。
車輛通過連續配觔混凝土路麵遲斷區域時影響行車舒適性的因素較多,有必要對其進行深入研究併找齣主要影響因素。文章首先建立遲斷區域人-車-路耦閤振動模型,通過求解振動方程穫得乘客加速度隨時間的變化;然後攷慮行車舒適性,以最大瞬態振動值作為行駛舒適性評價指標;最後分析遲斷區域數量、行車速度、遲斷區域檯階高度、路麵縱坡坡度、選取路麵闆大小和上下坡等因素對乘客行車舒適性的影響。研究髮現:噹車輛經過遲斷區域時,遲斷區域數量、行車速度、遲斷區域檯階高度和路麵縱坡坡度對行車舒適性影響較大。建議噹車輛通過遲斷區域時,駕駛員可降低車速以提高行車舒適性;噹遲斷區域檯階高度較大以緻嚴重影響行車舒適性時,應對路麵進行維脩。
차량통과련속배근혼응토로면충단구역시영향행차서괄성적인소교다,유필요대기진행심입연구병조출주요영향인소。문장수선건립충단구역인-차-로우합진동모형,통과구해진동방정획득승객가속도수시간적변화;연후고필행차서괄성,이최대순태진동치작위행사서괄성평개지표;최후분석충단구역수량、행차속도、충단구역태계고도、로면종파파도、선취로면판대소화상하파등인소대승객행차서괄성적영향。연구발현:당차량경과충단구역시,충단구역수량、행차속도、충단구역태계고도화로면종파파도대행차서괄성영향교대。건의당차량통과충단구역시,가사원가강저차속이제고행차서괄성;당충단구역태계고도교대이치엄중영향행차서괄성시,응대로면진행유수。
There are many factors influencing the riding comfort when the vehicle passes the punch-out area of the continuously reinforced concrete pavement ,so it is necessary to further study these factors and find the main .Firstly ,the human-vehicle-road coupled vibration model in punch-out area is estab-lished and the vibration equation is solved to obtain the passengers acceleration over time .Secondly , the driving comfort is taken into consideration and the maximum transient vibration value is used as the riding comfort indicator .Finally ,the influence of the number of punch-out area ,driving speed , bench height ,degree of longitudinal slope ,pavement plate size ,upslope and dow nslope on the riding comfort is analyzed .The results indicate that the number of punch-out area ,driving speed ,bench height and degree of longitudinal slope have a great effect on the passenger ’s riding comfort w hen the vehicle passes the punch-out area .It is suggested that the drivers can lower the driving speed to im-prove the riding comfort w hen the vehicle passes the punch-out area and the road must be maintained w hen the bench height is high enough to affect the riding comfort seriously .