An interactive method for the analysis of the simulation of vehicle–bridge coupling vibration using ANSYS and SIMPACK

Vehicle–bridge coupling vibration is a complicated interaction process, which includes multibody dynamics of vehicles, structural dynamics of bridges, and wheel–rail contact relationships. A single software is not adequate for the coupling analysis. Therefore, to efficiently conduct the vehicle–bridge coupling vibration analysis, an interactive method that integrates the commercial finite element software ANSYS and the multibody system software SIMPACK was presented in this study. The method takes advantage of the high modeling efficiency of ANSYS and the powerful wheel–rail analysis ability of SIMPACK. Two interactive methods, the dummy body coupling method and the equivalent flexible track method, were presented, and the merits and demerits of the two methods were compared in detail. Finally, the equivalent flexible track method was adopted for the analysis. The interactive method that was presented was confirmed to be feasible by the continuous bridge example, and the simulation for the long-span bridge was discussed further. It is shown that the interactive method has high computational efficiency and good convergence rate for various bridges, and the vehicle–bridge coupling vibration analysis can be conducted well and followed conveniently by other researchers.

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Vibration Analysis of a Long-Span Bridge with a Suspended Pavement System (SPS) Caused by the Vehicle Excitation

Footbridge 2017 Berlin - Tell A Story: Conference Proceedings 6-8.9.2017 TU-Berlin ◽

10.24904/footbridge2017.09347 ◽

2017 ◽

Author(s):

Chuanjie Cui ◽

Rujin Ma ◽

Dalei Wang ◽

Airong Chen

Keyword(s):

Vibration Analysis ◽

Long Span ◽

Long Span Bridge

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The Research of Thermosetting Resin Matrix Composite Reinforcing Application in the Web of Truss Bridge

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.531.638 ◽

2012 ◽

Vol 531 ◽

pp. 638-641

Author(s):

Li Wei ◽

Guang Qing Zhou ◽

Jia Guo Zheng ◽

Kun Liang Liu

Keyword(s):

Three Dimensional ◽

Steel Structure ◽

Resin Matrix ◽

Three Dimensional Model ◽

Finite Element Software ◽

Concrete Members ◽

Long Span ◽

Long Span Bridge ◽

Resin Matrix Composite ◽

Truss Bridge

A significant number of concrete members were strengthened by carbon fiber reinforced polymer (CFRP).However there are only a few applications in strengthening steel structure with CFRP. The three-dimensional model of the long span bridge is made by using the finite element software ANSYS and do the force analysis of it ,then make composites reinforcement in order to Improve the structure strength and increase bridge life. The conclusion received of this paper is that composite patch at the end of web is more effective than in the middle of web. By picking up the stress distribution of every layer, the law of stress is obtained.

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Study on the Vehicle-Bridge Coupling Vibration of Steel Arch Bridge

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.163-167.233 ◽

2010 ◽

Vol 163-167 ◽

pp. 233-238

Author(s):

Zi Lin Li ◽

Pei Yuan Zhou ◽

Zhen Bo Yun

Keyword(s):

Test Results ◽

Coupling Vibration ◽

Vibration Period ◽

Dynamic Displacement ◽

Arch Bridge ◽

Finite Element Software ◽

Long Span ◽

Data Processing Software ◽

New Type ◽

Arch Bridges

The modal analysis and the calculation of dynamic response of the Fenghua Bridge, a new type of long-span steel arch bridge, are carried out using the finite element software ANSYS. Through the on-site testing, the vibration frequency and the change of dynamic displacement response with different weight and speeds are obtained by the DASP data processing software. It is found that the field test results are in consistent with the theoretical results. Firstly, the natural vibration period is 2 ~ 3 times longer than the other ordinary arch bridges, which indicate the bridge structure is stable; Secondly, the dynamic displacement of bridge deck changes in the same direction with weight, while in the opposite direction with speed, and the maximum appears on the midpoint of the middle span; Finally, the maximum dynamic displacement is 11.41mm, which doesn’t exceed the allowable value. So it can be concluded that the bridge is safe under the vehicle-bridge coupling vibration.

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Study on Mechanical Properties and Field Monitoring of Ballastless CWR on the Bridge in High-Speed Railway

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.361-363.1449 ◽

2013 ◽

Vol 361-363 ◽

pp. 1449-1454

Author(s):

Bo Jing Chen ◽

Xiao Pei Cai ◽

Xiao Bo Shi

Keyword(s):

High Speed ◽

Design Parameters ◽

Fiber Grating ◽

High Speed Railway ◽

Finite Element Software ◽

Long Span ◽

Long Span Bridge ◽

Deformation Law ◽

Testing Technology ◽

Beam Track

In the design of long-span bridge , it is necessary to lay the expansion regulator in order to reduce the beam-track interaction. Take the Zhengzhou-Xi’an high-speed railway as an example, the paper created a CWR mechanical model on the bridge using the finite element software ANSYS, proposed the deformation law of the structure and its stress characteristics. Based on the fiber grating testing technology, many monitoring points were laid on the Weihe bridge, to make a long-term monitoring. Processed the monitoring data about rail temperature and temperature force of the regulator, the CWR service conditions were assessed. The study shows that the scheme laying a set of regulator on the longest span Weihe bridge has greatly decreased the beam-rail interaction. All of its design parameters are reasonable. The operation safety indexes can completely meet the need of limits.

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Dynamic Responses of Time-Dependent System of Long-Span Suspension Bridge and Train under Wind Load

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.105-107.1326 ◽

2011 ◽

Vol 105-107 ◽

pp. 1326-1332

Author(s):

Jun Feng Tang ◽

Xiang Rong Guo ◽

Yu Feng Liu

Keyword(s):

Wind Speed ◽

Vibration Analysis ◽

Suspension Bridge ◽

Wind Load ◽

Dynamic Responses ◽

Time Dependent ◽

Long Span ◽

Long Span Bridge ◽

The Right ◽

Time Dependent System

A finite element method of space vibration analysis of the time-dependent system of long span suspension bridge and train under wind load is put forward in this paper. The correlation coefficient of wind along long span bridge is taken into account to simulate the wind speed curve in every point along the bridge. The matrix of space vibration equations of the time-dependent system of train and bridge are assembled by the principle of “Sit in the right place”. We calculate and analyze the critical wind speed of the train both from aspects of safety and riding comfort. Taking into account the effect of rail irregularity, wind action and various kind of nonlinear factor etc, we made a detailed vibration analysis for the system of bridge and train, and obtained the warning wind speed and bridge-closed wind speed when trains running on the bride.

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