Effect of Wheel Pressure on Vibration of Straddle Monorail Transit Vehicle-Bridge System

Jang, Bo; Zhou, Zhi Hui; Zeng, Qing Yuan

doi:10.4028/www.scientific.net/amr.919-921.542

Cited by 4 publications

(3 citation statements)

References 1 publication

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“…Similarly, there also exist a few studies on the new type of rail transit, i.e., straddle monorail transit. For example, Liu et al [7] analyzed the effects of travelling, steering and stabilizing wheel pressures, as well as typical combined wheel pressure, on the corresponding system vibration. In addition, Du et al [8] discussed the wear law for running tyres, under the operating condition of driving on winding roads.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Performance of Straddle Monorail Curved Girder Bridge

Zhou¹,

Zhang²,

Miao³

et al. 2022

Computer Modeling in Engineering &Amp; Sciences

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In this work, a monorail vehicle-bridge coupling (VBC) model capable of accurately considering curve alignment and superelevation is established based on curvilinear moving coordinate system, to study the VBC vibration of straddle monorail curved girder bridge and the relevant factors influencing VBC. While taking Chongqing Jiao Xin line as an example, the VBC program is compiled using Fortran, where the reliability of algorithm and program is verified by the results of Chongqing monorail test. Moreover, the effects of curve radius, vehicle speed, and track irregularity on the corresponding vehicle and bridge vibrations are compared and analyzed. It is observed that the test results of lateral vibration acceleration (LVA) and vertical vibration acceleration (VVA) of track beam, and LVA of vehicle, are consistent with the simulation results. Owing to the track irregularity, vibration of track beam and vehicle increases significantly. Besides, an increase in vehicle speed gradually increases the vibration of track beam and vehicle. For the curve radius (R) ≤ 200 m, lateral and vertical vibrations of the track beam and vehicle decrease significantly with an increasing curve radius. Alternatively, when 200 m < R < 600 m, the lateral vibration of the track beam and vehicle decreases slowly with an increasing curve radius, while the relevant vertical vibration remains stable. Similarly, when R ≥ 600 m, the lateral and vertical vibrations of the track beam and vehicle tend to be stable. Accordingly, the results presented here can provide a strong reference for the design, construction, and safety assessment of existing bridges.

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Section: Introductionmentioning

confidence: 99%

Dynamic Performance of Straddle Monorail Curved Girder Bridge

Zhou¹,

Zhang²,

Miao³

et al. 2022

Computer Modeling in Engineering &Amp; Sciences

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“…When studying the coupling relationship between straddle-type monorail train and track beam, some scholars simplify the train as a multi-mass block system as a combination of a number of rigid bodies connected by a series of springs and dampers dynamic analysis on the coupled monorail train, track beam, and rigid-frame bridge system in the time domain. [12][13][14][15] Naeimi et al 16 built a 3D model of the straddle-type monorail train system in ADAMS. The entire model, consisting of the vehicle and bridge subsystems, is numerically analyzed by performing dynamic simulation in time domain, and researched the dynamic interactions of the coupled system in the vertical and longitudinal direction.…”

Section: Introductionmentioning

confidence: 99%

Research on dynamic behavior of train dynamic model of straddle-type monorail

Yang

et al. 2020

Noise & Vibration Worldwide

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This article focus on the dynamic behavior of straddle-type monorail composed of multiple vehicles. The four-vehicle dynamic model of straddle-type monorail considering the coupler force is established on the basis of the coupler dynamic model. The correctness of the model is verified by the real experimental vehicle test of Chongqing straddle monorail line 3 from Huixing station to Changfuroad station. The stable wheel overturning coefficient suitable for monorail is proposed which is used to evaluate the anti-overturning performance of straddle monorail. The vibration response, riding comfort, and dynamic curving behavior are analyzed using the dynamic model. The results show that the vibration response of car body accelerations obtained by single-car model is much different from that obtained by train model. The riding comfort of straddle-type calculated by the single-car model would make large mistake, and a multiple train model is needed. The dynamic curving behavior of straddle-type monorail obtained by the single-car model could represent the dynamic curving behavior well.

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“…Some experimental studies performed on particular monorail systems in Ma et al 39 and Shi et al, 40,41 to determine their dynamic characteristics. Other examples of studies on dynamic analysis of monorail-bridge system can be found in several researches [42][43][44][45][46][47][48][49][50][51] dealing either with vehicle dynamic aspects or bridge dynamics separately.…”

Section: Introductionmentioning

confidence: 99%

Dynamic interaction of the monorail–bridge system using a combined finite element multibody-based model

Naeimi

Tatari

Esmaeilzadeh

et al. 2014

Proceedings of the Institution of Mechanical Engineers, Part K:

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To assess the dynamic behavior of monorail-bridge system, an innovative model of train-guideway interaction has been developed based on multibody dynamics and finite element simulation. A finite element model of guideway structure for a particular monorail system is built up using parametric design language, considering a specific length of straddle monorail line in three dimensions. Both straight and curved track geometries are modeled to simulate the actual bridge infrastructure. Flexible elements are adopted for the guideway beams consisting of reinforced concrete profiles to increase the accuracy of the numerical simulations in a more realistic way. The bridge model indeed, is simulated using a beam-frame structure of composite steel-concrete material. A multibody simulation of monorail vehicle is then introduced using the commercial multibody software MSC Adams. The three-dimensional multibody model of the monorail vehicle together with the bridge subassemblies is eventually implemented in multibody environment. The entire dynamic model of the vehicle-track system consists of all flexible and rigid body elements. Dynamic responses of the vehicle and bridge system are then extracted for different loading conditions. The proposed numerical model is validated using some dynamic simulation results of the system from the vehicle manufacturer in the selected case study. The model is further verified against several analytical and measurement results reported in the literature both for straight and curved track configurations. The result of dynamic simulations gives an overview about the dynamic forces and reactions that can appear in bridge structure due to the train movement.

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Effect of Wheel Pressure on Vibration of Straddle Monorail Transit Vehicle-Bridge System

Cited by 4 publications

References 1 publication

Dynamic Performance of Straddle Monorail Curved Girder Bridge

Dynamic Performance of Straddle Monorail Curved Girder Bridge

Research on dynamic behavior of train dynamic model of straddle-type monorail

Dynamic interaction of the monorail–bridge system using a combined finite element multibody-based model

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