Influence of Curve Geometric Parameters on Dynamic Interactions of Side-Frame Cross-Braced Bogie

Yang, Chunlei; Yun-hua, Huang; Fu, Li

doi:10.1061/9780784483886.037

Cited by 3 publications

(7 citation statements)

References 9 publications

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“…The last works to discuss are the works from the last four years. They are represented with publications [98][99][100][101][102][103][104][105][106][107][108][109][110]. A survey of these works is undertaken to check if recently, some changes in the literature content are detectable compared to previous years.…”

Section: Motion Of a Rail Vehicle In A Transition Curve Above The Cri...mentioning

confidence: 99%

“…A survey of these works is undertaken to check if recently, some changes in the literature content are detectable compared to previous years. The only works where consideration of the presence of the TC is given are [106,110]. Luckily, a single publication was found where the dynamics of railway vehicles are studied on the TC at velocities higher than critical ones [106].…”

Section: Motion Of a Rail Vehicle In A Transition Curve Above The Cri...mentioning

confidence: 99%

“…The bifurcation character of the non-linear model is analyzed while the influences of suspension longitudinal and lateral stiffnesses are considered. In [110], a heavy-haul railway vehicle-track system is studied on a CC and TC to find key the parameters for vehicle-track dynamical interactions represented with corresponding forces in a curved track. The authors found that the CC radius is the key parameter, and it should not be smaller than 800 m. The next important parameter is TC length, but it has some inflexion in its properties; so, its influence is strong for short TCs while almost negligible for long TCs.…”

Section: Motion Of a Rail Vehicle In A Transition Curve Above The Cri...mentioning

confidence: 99%

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Dynamics of a Rail Vehicle in Transition Curve above Critical Velocity with Focus on Hunting Motion Considering the Review of History of the Stability Studies

Zboinski,

Golofit-Stawinska

2024

Energies

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The most general purpose of the current paper is to trace and discuss the history and state of the art of studies on vehicle motion (dynamics) in a transition curve above the critical velocity, with the aim of potentially increasing the circle of researchers involved in studying this issue and strengthening the will of the authors to continue their studies. This general goal is achieved in two ways: first, through a profiled literature analysis, showing the historical progress and current state of the research; and second, through reference to the history of stability studies as an example of selected studies’ development. In addition, this work has two more specific goals. Together, they consist of collecting the literature in a related field in one place and analyzing it on site to accomplish the review. Both specific goals are attained by dividing the literature into two corresponding parts. In the first part, the current issues of rail vehicle stability are analyzed and divided into four problems. The second part includes works that deal with the subject of the motion and dynamics of a rail vehicle on a transition curve section. Here, the works are divided into five groups and discussed. They are put in order from the closest to the furthest from this paper’s main subject; however, the last group includes the most recent references. In addition, information on the authors’ approach to the problem is provided, including the methods and models used, as well as example results. Based on the analysis of the literature and the state of the art, a summary of the analysis is presented at this paper’s end. It highlights the small number of works on the subject of interest, and based on the review of stability studies, it seeks to encourage present and potential authors to study this field and share their results with society.

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Section: Motion Of a Rail Vehicle In A Transition Curve Above The Cri...mentioning

confidence: 99%

Section: Motion Of a Rail Vehicle In A Transition Curve Above The Cri...mentioning

confidence: 99%

Section: Motion Of a Rail Vehicle In A Transition Curve Above The Cri...mentioning

confidence: 99%

See 1 more Smart Citation

Dynamics of a Rail Vehicle in Transition Curve above Critical Velocity with Focus on Hunting Motion Considering the Review of History of the Stability Studies

Zboinski,

Golofit-Stawinska

2024

Energies

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show abstract

“…Broad reference to the corresponding literature by other authors is provided in these publications, too. The newest examples of papers discussing the stability and dynamics of rail vehicles, also with their motion on CCs and TCs taken into account, are [8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24]. In [8], its authors study the stability of high-speed trains through a focus on bogie behaviour.…”

Section: The Literature Surveymentioning

confidence: 99%

“…The authors show the possible coexistence of stable and unstable limit cycles and expand on the consequences of Chinese high-speed trains' observed unfavourable behaviour. In paper [16], the authors study the influence of the curved track parameters, such as their radii, superelevation, and TC and CC lengths, on vehicle-track interactions in the case of a side-frame cross-braced two-axle railway bogie. They conclude that the curve radius is of unequivocal importance, the TC length is important provided the inflection point is not exceeded, superelevation is of minor importance (the differences in the results for the superelevation deficiency and excess are surprisingly small), and the CC length is of no importance at all.…”

Section: The Literature Surveymentioning

confidence: 99%

The Nonlinear Lateral Stability of a Four-Axle Freight Car with Y25 Bogies and Measures to Improve Its Faults

Dusza,

Golofit-Stawinska,

Zboinski

2024

Applied Sciences

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This paper presents investigations of rail vehicle bogies of the Y25 type. The Y25 bogie family is one of the most commonly used freight car bogie designs. In addition to several significant advantages characterising this design, several disadvantages have also been observed since the beginning of more than fifty years of its operation in several types of cargo vehicles. One of these defects observed in real systems is its “unsatisfactory running stability”, particularly for long straight tracks. This paper used the commercial engineering software VI-Rail (2010.13.0) to create a model of a gondola car (type 412W Eaos) with two Y25 bogies. The car model was tested in empty and loaded (maximum permissible load) modes. Its motion along straight and curved tracks with different radii values was analysed. The vehicle velocity was changed from a few m/s to the maximum values for which stable solutions of the model existed. For each route, the nonlinear critical velocity was determined, defining the maximum operating velocity of the modelled car. The model solutions were recorded, while just one was selected to present the results—the first wheelset’s lateral displacement ylw. Conjecture about its “imperfect running quality” on curved tracks was confirmed. The possible appearance of self-exciting wheelset vibrations in the modelled car’s operating velocity range in a laden state was also observed. The research results on the impact of changes in the bogie suspension parameters on the vehicle model’s stability are presented. The crucial parameter in the bogie suspension was indicated. Reducing its value by several percent about the nominal value increases the critical velocity of the car to values higher than the maximum operating velocity of the modelled vehicle.

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Nonlinear Lateral Stability of 4-Axle Freight Car with the Y25 Bogies and the Measures to Improve Its Faults

Dusza,

Golofit-Stawinska,

Zboinski

2024

Preprint

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The article presents investigations of rail vehicle bogie of Y25 type. The Y25 bogie family is one of the most commonly used freight car bogie designs. In addition to several significant advantages characterising this design, it also has several disadvantages observed since the beginning of more than fifty years of operation in several types of cargo vehicles. One of these defects observed in real systems is "unsatisfactory running stability", particularly at long straight tracks. The article used commercial engineering software VI-Rail to create a model of the gondola car (type 412W Eaos) with two Y25 bogies. The car model was tested empty and loaded (maximum permissible load). Motion along straight and curved tracks with different radii values was analysed. The vehicle velocity was changed from a few m/s to the maximum values for which stable solutions of the model existed. For each route, a non-linear critical velocity was determined, defining the maximum operating velocity of the modelled car. The model solutions were recorded, while just one was selected to present the results - the first wheelset lateral displacement ylw. The opinion about the "imperfect running quality" in curved tracks was confirmed. The possible appearance of self-exciting wheelset vibrations in the modelled car's operating velocity range in the laden state was also observed. The research results on the impact of the bogie suspension parameters change on the vehicle model stability are presented. The crucial parameter in the bogie suspension was indicated. Reducing its value by several percent about the nominal value increases the critical velocity of the car to values higher than the maximum operating velocity of the modelled vehicle.

show abstract

Influence of Curve Geometric Parameters on Dynamic Interactions of Side-Frame Cross-Braced Bogie

Cited by 3 publications

References 9 publications

Dynamics of a Rail Vehicle in Transition Curve above Critical Velocity with Focus on Hunting Motion Considering the Review of History of the Stability Studies

Dynamics of a Rail Vehicle in Transition Curve above Critical Velocity with Focus on Hunting Motion Considering the Review of History of the Stability Studies

The Nonlinear Lateral Stability of a Four-Axle Freight Car with Y25 Bogies and Measures to Improve Its Faults

Nonlinear Lateral Stability of 4-Axle Freight Car with the Y25 Bogies and the Measures to Improve Its Faults

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