Parameter Identification and Experimental Investigations of Unconventional Railway Wheelset Designs on a Scaled Roller Rig

Jaschinski, A.; Grupp, Friedemann; Netter, H.

doi:10.1080/00423119608969202

Cited by 5 publications

(2 citation statements)

References 4 publications

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“…Computational methods to solve for the dynamic interaction of a high-speed train and railway structure have been developed based on mutibody dynamics together with finite element method by many authors, and various mechanical models for the car, the railway structure and the interaction have been developed depending on dynamic behaviors of interests and purposes to design railway systems [1][2][3][4][5][6][7]. However, very little work related to derailment and post-dearilment behaviors of a whole high-speed train on the railway structure during an earthquake has been reported so far.…”

Section: Introductionmentioning

confidence: 99%

Computational Model for a High Speed Train Running on the Railway Structure Including Derailment during an Earthquake

Tanabe

Wakui

Sogabe

et al. 2012

AMR

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The computational method to solve for the dynamic interaction between a high-speed train and the railway structure including derailment during an earthquake is given. The motion of the train is expressed in multibody dynamics. Efficient mechanical models to express contact-impact behaviors between wheel and the track structure including derailment during an earthquake are given. Rail and track elements with multibody dynamics and FEM combined have been developed. A nonlinear spring element based on a trilinear elastic-plastic material model with the kinematic hardening is given for a concrete railway structure under cyclic loads during an earthquake. The motion of a railway structure is modeled with various finite elements and also with rail and track elements. A modal reduction is applied to solve the problem effectively. An exact time integration scheme has been developed that is free from the round-off error for very small time increments needed to solve the interaction between wheel and railway structure including derailment during an earthquake. Numerical examples are demonstrated.

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Section: Introductionmentioning

confidence: 99%

Computational Model for a High Speed Train Running on the Railway Structure Including Derailment during an Earthquake

Tanabe

Wakui

Sogabe

et al. 2012

AMR

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“…Pascal implemented a scaled, large diameter roller to study the creep theory and contact dynamics of wheels and rails, and focused the point of similarity law on the velocity [3]. Jaschinski used the scale model to verify the feasibility of multi-body dynamics theory and the nonlinear equation of motion, and tried scaling by focusing the point of similarity on acceleration [4,5]. Bosso studied the differences among the similarity laws and compared test results with simulation results [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

A study on the critical speed of worn wheel profile using a scale model

et al. 2009

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A study was conducted to analyze the influence of wheel profile wear on running stability by using a 1/5 scale bogie model. The critical speed was analyzed by constructing a dynamic model for the bogie model. And the 1/5 scale bogie and a scaled roller rig prototype were manufactured to verify the feasibility of applying the scale model; a critical speed test was conducted for worn wheel profile samples. The test results for the scale model were consistent with the simulation results for the scale model within the range of 5% or less. Also, the variation of the critical speed of the scale model for the wheel profile wear shows a similar trend with the analysis results of the full scale model. Therefore, using the scale model to analyze the influence of wheel profile wear on running stability shows sufficient feasibility as a model to analyze the stability of a full scale bogie.

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