Simulation of Torsional Vibration of Driven Railway Wheelsets Respecting the Drive Control Response on the Vibration Excitation in the Wheel-Rail Contact Point

Trimpe, Fritz; Lück, Sönke; Naumann, Rolf; Salander, Corinna

doi:10.3390/vibration4010003

Cited by 6 publications

(13 citation statements)

References 10 publications

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“…This section discusses the mechanical model of the drivetrain system. The hollow shaft drive-train of the German class 120 locomotive has been selected for the analysis [54], [55].…”

Section: Mechanical Drive-train Modelmentioning

confidence: 99%

“…Finally, the train speed v train is obtained as shown in Fig. 5, where m t is the total mass of the train, F res is the resistive force due to the air (K air ) and rolling (K roll ) resistances [55]. Forces due to track grading are not shown in this figure.…”

Section: B Simulation Modelmentioning

confidence: 99%

“…Six-inertia drive-train model parameters of the German class 120 locomotive referred to the wheelset side [54], [55].…”

Section: Appendix a Mechanical Drive-train Parameters Tablementioning

confidence: 99%

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Torsional Vibration Suppression in Railway Traction Drives

et al. 2022

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Torsional vibrations phenomena are self-excited vibrations that occur in the wheelset of railway powertrains due to the counter-phase oscillation of both wheels. Long-lasting events of this type may lead to the catastrophic failures. Therefore, torsional vibration suppression and mitigation methods have drawn significant attention from the railway industry in the recent few years. Conventional vibration suppression methods reduce motor torque once the oscillation is detected. However, this can result in trip delays. Design of methods which do not compromise the traction capability is challenging. This paper proposes a novel torsional vibration suppression method using a Proportional-Resonant (PR) controller. The proposed method is insensitive to mechanical drive-train parameter variation neither requires adding new sensors to the wheelset. The method requires previous knowledge of the natural frequency of the wheelset torsional mode but this significantly reduces the implementation complexity suffered by other anti-vibration methods. Furthermore, the method will be shown to provide reduced sensitivity to slip velocities and wheelrail conditions.INDEX TERMS Railway traction drives, torsional vibrations, slip-stick phenomenon, slip control, fieldoriented control, proportional-resonant controller.

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“…This section discusses the mechanical model of the drivetrain system. The hollow shaft drive-train of the German class 120 locomotive has been selected for the analysis [54], [55].…”

Section: Mechanical Drive-train Modelmentioning

confidence: 99%

Section: B Simulation Modelmentioning

confidence: 99%

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Torsional Vibration Suppression in Railway Traction Drives

et al. 2022

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“…Since several decades the theoretical analyses of the torsional oscillation for the drive trains are almost conducted by using numeric simulation in time range and with the objective to reduce the oscillation amplitude if the oscillation occurs, such as in [3][4][5]. The focus of this article is to evaluate the maximum amplitude of the torsional oscillation with an effective energy-based approach, which is strongly related to the adhesion characteristics between rail and wheel [6].…”

Section: Analytical Description Of the Dynamic Torsional Momentmentioning

confidence: 99%

Energy Based Approach to Evaluate Self-Excited Vibrations of Wheelsets Caused by Adhesion Characteristics

Yu¹,

Breuer²

2022

IJMEA

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Throughout the homologation process, especially in Germany, the torsional load acting on the wheelset due to drive train oscillations must be evaluated. The maximum values of these dynamic torsional moments are strongly influenced by the adhesion conditions in the wheel/rail contact and the slip velocity range between wheel and rail due to drive control dynamics. The adhesion conditions are hard to measure and to reproduce. Hence, it is time-consuming to prove that the measured dynamic moments cover the possible maximal values. The proposed energy method allows a proper prediction of maximum dynamic moments, assuming critical adhesion conditions and an appropriate drive train model. The criticality of the adhesion conditions is shown by measurements. The method is applied to different types of drive train. The predicted maximum values of the dynamic moments are compared with measurement results. During the drive control design phase, the energy method helps to determine a setting range of the slip velocity compatible with the wheelset axle strength. In the homologation process the method could replace measurements.

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“…Mathematical simulation models are usually used as the principal research tool. Complex simulation models of a whole railway vehicle were presented by Markovic et al [3] and Trimpe et al [4]. The research in the field of torsion oscillations in traction drives of railway vehicles focuses on the development of control systems, which are used for an elimination of undesired behaviour of traction drives during the vehicle operation, for example, anti-slip control systems [5].…”

Section: Introductionmentioning

confidence: 99%

The Individual Drive of a Wheelset and the Problematics of Its Electromechanical Phenomena

Dybala,

Fridrichovský,

Kalivoda

2024

Vehicles

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This paper deals with the phenomenon of torsion oscillations in railway vehicle drive systems. The main goal is to reduce the risk of presence of torsional oscillations in wheelset drive, eventually to propose systems to effectively identify and eliminate torsional oscillations of wheelsets. Therefore, a simulation wheelset drive model including a detailed model of the asynchronous traction motor control was built. The results of computer simulations show that the torsional oscillations can be effectively eliminated by avoiding the resonance states between the excitation frequencies given by pulse width modulation of the inverter and the eigenfrequencies of the mechanical part of the drive. Furthermore, it was found that the presence of torsional oscillations of the wheels can be detected based on the traction motor current ripple. The wheelset drive model was subsequently implemented in a simulation model of a four-axle locomotive. A new algorithm of an anti-slip protection system that utilizes motor currents was implemented in the model. Simulations show that such an anti-slip protection system can prevent the occurrence of undesired large amplitude of wheelset torsional oscillations. The models and simulation results are presented in detail in the paper.

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Simulation of Torsional Vibration of Driven Railway Wheelsets Respecting the Drive Control Response on the Vibration Excitation in the Wheel-Rail Contact Point

Cited by 6 publications

References 10 publications

Torsional Vibration Suppression in Railway Traction Drives

Torsional Vibration Suppression in Railway Traction Drives

Energy Based Approach to Evaluate Self-Excited Vibrations of Wheelsets Caused by Adhesion Characteristics

The Individual Drive of a Wheelset and the Problematics of Its Electromechanical Phenomena

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