As long span Bridges are constantly emerging, the speed and load of vehicles are increasing, Coupled vibration of vehicle-bridge problems become more prominent.
随着高墩大跨桥梁不断涌现,车辆速度和载重量不断增大,车桥耦合振动问题愈加突出。
By applying vehicle-bridge vibration theory, dynamical model and equation of railway curve negotiating vehicle as well as the model and equation of curve beam bridge are established.
运用车桥耦合振动理论,建立铁路车辆曲线通过模型动力方程、曲线梁桥模型及其动力方程。
Under cross wind action, vehicle-bridge coupling vibration analysis requires consideration of aerodynamic force parameters of vehicle and bridge deck.
侧向风作用下的车桥耦合振动分析需要考虑相互气动影响的车辆和桥梁各自的气动参数。
The rotation effect of running cars in vehicle-bridge coupled vibration analysis was considered, though its effect is minor.
并考虑了车-桥耦合振动中行驶车辆的转动效应,虽然它的影响是很小的;
Based on random rail roughness and vehicle-bridge coupling element, a method is proposed for calculating random vibration of long span Bridges under moving vehicles in this paper.
基于随机轨道粗糙度和车桥偶合单元,提出了大跨桥梁移动车辆荷载作用下随机振动的计算模式。
A new method for a vertical non-stationary random vibration analysis of vehicle-bridge systems subjected to track irregularity excitations is proposed.
提出了考虑轨道高低不平顺时进行车桥耦合系统垂向非平稳随机振动分析的新方法。
The method simplifies progress of vibration analysis of vehicle-bridge, provides valuable theory reference for vehicle-bridge dynamical analysis of homothetic large span bridge.
该方法简化了大跨斜拉桥车桥振动分析过程,便于工程技术人员应用,可为其他类型大跨桥梁车桥振动分析提供参考。
In the view of comfort properties, the effects of bridge vibration on the vertical acceleration of vehicle are discussed in present paper.
本文从舒适性角度出发,讨论了桥梁结构的振动对车辆垂向加速度的影响。
The analysis results in the paper indicate that the effect of the curvature radii should be reckoned in the analysis of the vehicle-bridge coupled vibration about the continuous curved girder Bridges.
分析结果表明在曲线梁桥的车桥耦合振动分析中应计入曲率半径的影响。
The analysing method applying to coupled vibration of railway vehicle-bridge system is advanced in this paper.
本文建立了铁路车桥系统耦合振动的分析方法。
However, it is well know that the random vibration analysis of vehicle-bridge coupling system is a very difficult problem.
而对车辆-桥梁这种复杂的耦合系统进行随机分析,历来被认为是一件非常困难的工作。
The vibration problem induced by vehicle moving over bridge has been widely investigated, but most of previous work is focused on the security of bridge.
车辆过桥引发的振动问题已有很多研究,目前大部分工作集中在桥梁结构的安全性方面。
Meanwhile, the modal analysis is used to test the detection arm's natural frequency and structural vibration modes, which provides a reference for the stability test of the bridge inspection vehicle.
同时对检测臂进行了模态分析,测出了其固有频率和结构振型,为检测车工作时的稳定性要求提供了参考。
Finally, we do some research on more than one vehicle-bridge coupling system model and vibration analysis of the problem.
最后研究了多台变速车辆与桥梁耦合系统的振动问题。
Summarize various factors of the vehicle vibration and classify the vehicle load that is the main vibration excitation of bridge, give the different types of vehicle dynamic load applied conditions.
总结了引起车辆振动的各种因素,并对车—桥耦合系统中,桥梁结构振动主要的激励源—车辆荷载进行了分类,给出了不同类型车辆动荷载的适用条件。
Therefore, it is very necessary to find a Method to simulate reality generated by the bridge under vehicle loads, and to facilitate the calculation of Coupling Vibration Analysis.
因此,建立一种模拟真实情况下汽车过桥所产生荷载,同时便于车桥耦合振动分析计算的车辆荷载模型是十分有必要的。
The vehicle-bridge vibration system is divided into two sub-system of vehicle vibration system and bridge vibration system.
两个体系的振动相互影响、相互制约,使其可以看作一个车辆桥梁体系的振动。
Through finite element analysis and experimental study, this dissertation makes systematical research on vehicle-bridge coupling vibration of concrete box-girder with corrugated steel webs.
本文通过有限元分析和试验研究,对波纹钢腹板混凝土箱梁的车桥耦合进行了较为系统的研究。
Along with the construction of large-span, river-crossing Bridges, vehicle-bridge coupling vibration will make catenary vibrate, which can further affect pantograph-catenary coupling vibration.
随着大跨距跨江铁路桥的建设,车和桥的耦合振动会引起接触网的振动,进而影响弓网的耦合振动。
Along with the construction of large-span, river-crossing Bridges, vehicle-bridge coupling vibration will make catenary vibrate, which can further affect pantograph-catenary coupling vibration.
随着大跨距跨江铁路桥的建设,车和桥的耦合振动会引起接触网的振动,进而影响弓网的耦合振动。
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