Railway Vehicle Dynamics: Some Aspects of Wheel–Rail Contact Modeling and Optimization of Running Gears

Kovalev, Roman; Yazykov, Vladislav; Mikhalchenko, Georgy; Pogorelov, Dmitry

doi:10.1081/sme-120022853

Cited by 22 publications

(12 citation statements)

References 3 publications

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“…The tipper car solid-state computer model is developed for research of dynamic loading capacities forced on this car supporting structure in operation, in the field of program complex of body system dynamics modeling "Universal mechanism" [1]. It consists of solid-state models of car body and bogies presented as subsystems.…”

Section: Resultsmentioning

confidence: 99%

“…Mathematical modeling is the main tool for process research of dynamic loadbearing structure of surface transport for bulky goods transportation. Thus the modern program multibody system and FEM [1][2][3] complexes are used. The specified approaches are frequently used at design and strength assessment of loadbearing bodies structures both automobile quarry machinery [4,5] and railway cars [6,7].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Research of dynamic load capacity of tipper car using mathematical model method

Antipin

Motyanko

Rasin

2015

2015 International Conference on Mechanical Engineering, Automation and Control Systems (MEACS)

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Research of dynamic load capacity of tipper car using mathematical model method

Antipin

Motyanko

Rasin

2015

2015 International Conference on Mechanical Engineering, Automation and Control Systems (MEACS)

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“…A multipoint wheel/rail contact model is further used in the vehicle model to determine the contact forces and moments as functions of the translational and rotational motions of the wheelset, including the flange contact. For this purpose, the Kalker's FASTSIM algorithm 33,34 is applied to determine the creep forces and moment at the wheel-rail interface considering an elliptical contact patch.…”

Section: Model Formulations Mbd Model Of the Tank Carmentioning

confidence: 99%

Investigation of coupled dynamics of a railway tank car and liquid cargo subject to a switch-passing maneuver

Ashtiani

Rakheja

Ahmed

2019

Proceedings of the Institution of Mechanical Engineers, Part F:

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The movement of the liquid cargo within a partly filled tank car is known to impose additional slosh forces and moments that may adversely affect the dynamic responses of the vehicle. This study is aimed at analyzing the liquid cargo slosh in a partly filled tank car and its effects on vehicle responses during a switch-passing maneuver. A two-dimensional analytical liquid slosh model is formulated for the analyses of the liquid load shift in the roll plane, lateral slosh force, and roll moment through summation of first four antisymmetric modes of the liquid. The analytical slosh model is integrated to a 114 degrees-of-freedom multibody dynamic model of the railway tank car comprising nonlinear wheel–rail contact and contact pairs of the suspension system. The validity of the slosh model is illustrated by comparing the responses with those reported in other studies and those obtained from a nonlinear computational fluid dynamic model. The coupled fluid–vehicle model is subsequently used to study the effects of fluid slosh during switch-passing maneuvers on different response measures, namely roll motion of the tank car, lateral and vertical wheel–rail contact forces, and derailment ratio. The significance of the liquid cargo slosh in the partially filled state is demonstrated by comparing the responses with those of the car with equivalent rigid cargo. The results show that liquid sloshing within the partly filled car can lead to higher magnitudes of car body roll angle and thereby the unloading ratio compared to the conventional rigid cargo car. Switch-passing critical speeds are further identified for different fill ratios and switch geometries. For fill ratios below 80%, the switch-passing critical speeds of the partly filled car are substantially lower compared to those of the equivalent rigid cargo car. Neglecting the contributions due to dynamic slosh force and roll moment arising from a partially filled railway tank car may thus lead to underestimation of the critical speed in switch-passing maneuvers.

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“…Dmitry Pogorelov and Viasdislav [7] considered a technique referred to as the 'Train 3D method' for simulation of trains as coupled derailed spatial and simplified one-dimensional models of rail vehicles to evaluate safety factors with dependence on the train operation regime. R.Kovalev and V.N Yazykov [8] presented nonstiff method for computing the nonelliptical contact problem that can apply to the wheel rail contact problem. Hyung-Suk Han and Jeong-Seo Koo [9] studied high-speed train crashes in three dimensions using multi-body dynamics to predict the crash behavior of trains.…”

Section: Introductionmentioning

confidence: 99%

Modeling and Simulation of Collision-Causing Derailment to Design the Derailment Containment Provision Using a Simplified Vehicle Model

et al. 2019

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As the operating speed of a train increases, there is a growing interest in reducing damage caused by derailment and collision accidents. Since a collision with the surrounding structure after a derailment accident causes a great damage, protective facilities like a barrier wall or derailment containment provision (DCP) are installed to reduce the damage due to the secondary collision accident. However, the criteria to design a protective facility such as locations and design loads are not clear because of difficulties in predicting post-derailment behaviors. In this paper, we derived a simplified frame model that can predict post derailment behaviors in the design phase of the protective facilities. The proposed vehicle model can simplify for various frames to reduce the computation time. Also, the actual derailment tests were conducted on a real test track to verify the reliability of the model. The simulation results of the proposed model showed reasonable agreement to the test results.

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Railway Vehicle Dynamics: Some Aspects of Wheel–Rail Contact Modeling and Optimization of Running Gears

Cited by 22 publications

References 3 publications

Research of dynamic load capacity of tipper car using mathematical model method

Research of dynamic load capacity of tipper car using mathematical model method

Investigation of coupled dynamics of a railway tank car and liquid cargo subject to a switch-passing maneuver

Modeling and Simulation of Collision-Causing Derailment to Design the Derailment Containment Provision Using a Simplified Vehicle Model

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