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交通运输论文

Design and Reliability Analysis of DP-3 Dynamic Positioning Control 

  Abstract:As the exploration and exploitation of oil and gas proliferate throughout deepwater area,the requirements on ...

Study on Scattering Wave Force of Horizontal and Vertical Plate Type

  Abstract:The interaction between wave and horizontal and vertical plates is investigated by the boundary element metho...

Depth-Trim Mapping Control of Underwater Vehicle with Fins

  Abstract:Underwater vehicle plays an important role in ocean engineering.Depth control by fin is one of the difficulti...

Experimental Study on the Performance of Twin Plate Breakwater

  Abstract:The wave transmission characteristics and wave induced pressures on twin plate breakwater are investigated ex...

Development and Application of An Operational Tide and Storm Surge P

  Abstract:Storm surges are abnormal rises in sea level along coastal areas and are mainly formed by strong wind and atm...

Experimental Study on Suspended Sediment Concentration and Its Verti

  Abstract:In this paper,flume experiments are focused on sediment transport inside and outside the surf zone.According ...

Prediction of Non-Cavitation Propeller Noise in Time Domain

  Abstract:The blade frequency noise of non-cavitation propeller in a uniform flow is analyzed in time domain.The unstea...

Experimental Researches on Reflective and Transmitting Performances 

  Abstract:A series of regular and irregular wave experiments are conducted to study the reflective and transmitting per...

Numerical Simulation of Wave-Induced Currents Combined with Paraboli

  Abstract:Researches on breaking-induced currents by waves are summarized firstly in this paper.Then,a combined numeric...

A 3-D Time-Domain Coupled Model for Nonlinear Waves Acting on A Box-

  Abstract:A 3-D time-domain numerical coupled model is developed to obtain an efficient method for nonlinear waves acti...

Study on A New Mooring System Integrating Catenary with Taut Mooring

  Abstract:Analyzed are the merits and demerits of catenary mooring system and taut mooring system,which are commonly us...

Fatigue Analysis of the Taut-Wire Mooring System Applied for Deep Wa

  Abstract:Precisely predicting the fatigue life of taut-wire mooting systems has become an interesting and important pr...

Analytical and Numerical Modeling for Flexible Pipes

  Abstract:The unbonded flexible pipe of eight layers,in which all the layers except the carcass layer are assumed to ha...

Development and Experiments of the Sea-Wing Underwater Glider

  Abstract:Underwater gliders,which glide through water columns by use of a pair of wings,are efficient long-distance,lo...

Numerical Simulation of Viscous Cavitating Flow Around A Ship Propel

  Abstract:In the present study,cavitation and a ship propeller wake are reported by computed fluid dynamics based on vi...

Modified origin-based algorithm for traffic equilibrium assignment p

  Abstract:Key tactics of origin-based user equilibrium (OUE) algorithm was studied,which involved the algorithm procedu...

A mechanical system to predict wet grip potential of pavements

  Abstract:A precise friction model is essential for the prediction of tyre wet grip performance and optimization of pav...

Cellular automation model for analyzing capacity of branch road sect

  Abstract:In order to reduce the traffic pressure of urban arterial road with the rational utilization of the branch ro...

Changes in permafrost environments caused by construction and mainte

  Abstract:The sideward permafrost along the Qinghai-Tibet Highway (QTH) contains massive ground-ice and is at a relativ...

Numerical simulation of asphalt mixture based on three-dimensional h

  Abstract:In order to verify the validity of finite element numerical simulation method for asphalt mixture,which consi...

Degradation behavior of aggregate skeleton in stone matrix asphalt m

  Abstract:The degradation behavior of aggregate skeleton in stone matrix asphalt mixture was investigated based on theo...

Similarity research of anomalous dynamic response of ship girder sub

  Abstract:The final anomalous sag distortion of the ship girder subjected to the near field underwater explosion (undex...

Laboratory tests to study the influence of rock stress confinement o

  Abstract:To clarify some aspects of rock destruction with a disc acting on a high confined tunnel face,a series of tes...

Stability analysis of shallow tunnels subjected to seepage with stre

  Abstract:Based on strength reduction theory, the stability numbers of shallow tunnels were investigated within the fra...

桥梁结构的健康监测

  摘要:讨论了工程结构(特别是大跨桥)健康监测系统的背景、特点、核心技术、所涉及的多学科研究进展及发展前景,指出其主要目的是监测累积损伤.桥梁的自动交通管理设施和验收试验为桥梁健康监测系统打下了基础.世界上许多新建的大跨桥都安装有监测系统...

Probabilistic Lifetime Assessment of Marine Reinforced Concrete with

  Abstract:In order to study the durability behavior of marine reinforced concrete structure suffering from chloride att...

Co-Gd合金在尿素-乙酰胺-NaBr熔体中的电沉积及合金性能

  摘要:在尿素-乙酰胺-NaBr熔盐中采用电沉积方法制备了Co-Gd合金薄膜.运用循环伏安技术研究了Gd、Co的共沉积行为.通过扫描电子显微镜、X射线能谱仪和X射线衍射仪研究了电流密度对镀层表面形貌、元素组成及镀层结构的影响.研究发现,G...

Experimental Investigation of the Decay from A Ships Propeller

  Abstract:In the present study, an experimental investigation of the decay of the maximum velocity and its turbulent ch...

全国第2届近红外光谱学术会议通知(第二轮)

  摘要: 为全力展示我国近红外光谱领域所取得的最新进展及成果,增进广大近红外光谱科技工作者和广大近红外分析工作者之间的交流与合作,进一步促进我国近红外光谱事业的发展,中国仪器仪表协会近红外光谱分会拟于2008年11月20~22日在长沙主办...

基于光谱分析的综合传动空载磨合磨损规律研究

  摘要:油液光谱分析是当前研究复杂传动装置磨合过程磨损规律的重要方法,利用原子发射光谱分析技术可以在不改变原有配合状态的条件下方便及时地对综合传动磨合过程磨损量变化规律进行研究.文章基于综合传动的结构特征和磨合机理,进行了台架空载磨合对比...

基于油液光谱分析的PCA-AHP综合传动健康状态评价研

  摘要:油液光谱分析是研究综合传动运行状态的重要方法,以油液光谱分析数据为基础,运用主成分分析法(PCA)和层次分析法(AHP),建立了一种综合传动健康状态的评价模型.文章结合机械设备健康的概念,综合考虑油液光谱分析数据中各种磨损元素的影...

基于光谱分析和SVM的综合传动故障诊断研究

  摘要:油液光谱分析是研究综合传动运行状态的重要方法,文章以油液光谱分析数据为基础,运用支持向量机(support vector machine,SVM),建立了一种多输出最小二乘支持向量回归方法.利用多输出最小二乘支持向量回归方法对两台...

Seismic performance of tunnel lining of side-by-side and vertically 

  Abstract:The dynamic interaction between tunnel lining and its surrounding soil is a complicated issue as the magnitud...

Effect of moisture on the aging behavior of asphalt binder

  Abstract:The moisture aging effect and mechanism of asphalt binder during the in-service life of pavement were investi...

车辆路径问题的遗传算法研究

  摘要:在分析车辆路径问题的现有启发式算法的基础上,本文构造了车辆路径问题的染色体表达,并对染色体进了可行化影射,建立了此问题的遗传算法. 实验结果表明,此算法可以有效求得车辆路径问题的优化解或近似优化解,是求解车辆路径问题的一个较好的方...

Nonlinear dynamic response of stay cables under axial harmonic excit

  Abstract:This paper proposes a new numerical simulation method for analyzing the parametric vibration of stay cables b...

Determination of rock resistant coefficient based on Mohr-Coulomb cr

  Abstract:According to the load-structure method,the wall rock with lining call bear the load caused by the surrounding...

应变速率对管线钢近中性pH值环境敏感开裂的影响

  摘要:以X-70管线钢近中性pH值溶液(NS4和实际土壤溶液)为研究对象,研究了恒载荷、慢应变速率拉伸(SSRT)和循环载荷等不同条件下的环境开裂行为.结果表明,在该体系中局部应变速率是联系各种不同断裂过程的纽带,决定着断裂的模式.当该...

Stability-driven Structure Evolution: Exploring the Intrinsic Simil

  Abstract:As the core of the Energy-Minimization Multi-Scale (EMMS) approach, the so-called stability condition has bee...

大型桥梁健康监测概念与监测系统设计

  摘要:大型桥梁健康监测力求对结构整体行为的实时监控和对结构状态的智能化评估,同时,对大跨度桥梁设计理论与力学模型的验证以及对结构和结构环境中未知或不确定性问题的调查与研究也正融人桥梁健康监测的内涵.据此首先简要地总结10多年来桥梁健康监...

Structure and antibacterial activity of Ce~(3+) exchanged montmorill

  Abstract:Four kinds of Ce~(3+) exchanged montmorillonites(Ce/MMTs) were prepared by an ion-exchange reaction, and char...

Dynamic analysis of subway station subjected to internal blast loadi

  Abstract:The study was motivated by the fact that explosion inside the subway structure may not only cause direct life...

Modeling and parameter identification of amplitude-and frequency-dep

  Abstract:A model to describe the hysteresis damping characteristic of rubber material was presented. It consists of a ...

Mechanical behavior of segment rebar of shield tunnel in constructio

  Abstract:In this paper, a 3D finite element (FE) program ADINA was applied to analyzing a tunnel with 9 segment rings....

Calculation method of ship collision force on bridge using artificia

  Abstract:Ship collision on bridge is a dynamic process featured by high nonlinearity and instantaneity. Calculating sh...

非常规突发事件中的区域路网疏散能力评估与交通组织方案设计

  摘要:分析非常规突发事件影响下的交通组织特性,基于元胞传输模型(CTM)设计了疏散目标函数和疏散特性约束,构造了非常规突发事件影响下限定时间的区域路网疏散能力评估与交通组织设计模型.针对不同层次的需求,模型可以整理为完整模型和简化模型两...

Evaluation of reclaimed asphalt pavement binder stiffness without ex

  Abstract:A new testing procedure to estimate the low-temperature stiffness of the reclaimed asphalt pavement (RAP) bin...

Aerodynamic drag analysis of double-deck container vehicles with dif

  Abstract:To study the aerodynamic performance of a new six-axis X2K double-deck container vehicle,numerical simulation...

Stress and deformation due to embankment widening with different tre

  Abstract:A two-dimensional (2-D) finite element (FE) model was developed to analyze the deformation and stress of emba...

围压卸载下高应力岩石动力扰动的破坏特性

  摘要:利用改造后的动-静组合加载SHPB装置,系统研究砂岩预先经三维加载再围压卸载的动-静组合加载的破坏特性.结果表明:采用动-静组合加载,当动载荷较大时,试样整体失稳,应力—应变曲线为典型的Ⅰ型曲线;随着动载荷的减小,应力—应变曲线逐...

向前看多车跟驰模型稳定性分析

  摘要:考虑多辆前导车信息对跟驰车的影响,提出了一种改进的交通流跟驰模型.通过线性稳定性分析,得到了改进模型的稳定性条件,改进模型通过调节多前导车信息,使交通流的稳定区域明显扩大.通过非线性分析获得不稳定区域下的扭结-反扭结密度波.数值模...

Research on cubic polynomial acceleration and deceleration control m

  Abstract:To satisfy the need of high speed NC (numerical control) machining, an acceleration and deceleration (aec/dec...

随机需求下公交时刻表设计的鲁棒性优化

  摘要:考虑在实际运营中乘客需求具有随机性,固定需求下优化的公交时刻表不适应运营的要求,随机需求下的期望值模型忽略了不利可能事件对运营的负面影响,针对此情况研究随机需求下公交时刻表设计的鲁棒性优化,模型综合考虑乘客成本与运营成本,采用鲁棒...

Sixth International Conference on Asian and Pacific Coasts December 

  摘要:The 6th International Conference on Asian and Pacific Coasts,organised by the Department of Civil Engineering and t...

典型城市路网中的椭圆最短路径算法

  摘要:提出了一种高效可靠的限制搜索区域的最优路径算法.该算法是基于典型城市路网的共同特征,而不是某个特定城市的统计信息提出的,它可以应用在不同的城市路网中.针对从源站点到目的站点不同的欧式距离,算法分别在两类不同大小的椭圆内搜索最短路径...

基于改进的Dijkstra算法的动态最短路计算方法

  摘要:首先将所研究的时间段进行时段划分,然后基于每个路段在每个时段内的历史平均速度给出了改进的Dijkstra算法,它可以给出任意时刻从任意节点位置出发到达任一目的地的行程时间最短的路径及其相应的行程时间;其次在允许超车行为存在的条件下...

Design methods of headed studs for composite decks of through steel 

  Abstract:Aimed at two typical composite floor systems of through steel bridges in high speed railway, design methods o...

A 2.5D finite element approach for predicting ground vibrations gene

  Abstract:Dynamic responses of track structure and wave propagation in nearby ground vibration become significant when ...

A coarse-grained differentiated routing algorithm in multi-protocol 

  Abstract:A new coarse-grained differentiated least interference routing algorithm (CDLI) with DiffServ-Aware was prese...

Optimal design of V-type ultrasonic motor

  Abstract:V-type ultrasonic linear motor fabricated using a simple punching technique was proposed to utilize as an act...

Influence of aerodynamic braking on the pressure wave of a crossing 

  Abstract:When aerodynamic braking works,the braking wings can change the flow field around the train,which may impact ...

Dynamic response analysis of a moored crane-ship with a flexible boo

  Abstract:The dynamic response of moored crane-ship is studied. Governing equations for the dynamic response of a crane...

Vibration analysis of maglev three-span continuous guideway consider

  Abstract:The dynamic interaction between maglev vehicle and three-span continuous guideway is discussed. With the cons...

埋地管道在近中性pH和高pH环境中的应力腐蚀开裂

  摘要:综述了埋地管道经典型的高pH应力腐蚀开裂(高pH SCC)与近十多年来发现和研究的近中性pH应力腐蚀开裂(近中性pH SCC)的异同,影响因素以及机理,最后展望了埋地管道的未来研究方向. 作者: ...

Finite element analysis of dynamic stability of skeletal structures 

  Abstract:This paper addresses the dynamic stability problem of columns and frames subjected to axially applied periodi...

Smart elasto-magneto-electric (EME) sensors for stress monitoring of

  Abstract:Steel structures are widely used in railway infrastructures.Their stress state is the most important determin...

Robust background subtraction in traffic video sequence

  Abstract:For intelligent transportation surveillance, a novel background model based on Mart wavelet kernel and a back...

Aerodynamic stability of cable-supported bridges using CFRP cables

  Abstract:To gain understanding of the applicability of carbon fiber reinforced polymer (CFRP) cable in cable-supported...
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交通运输论文

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