Development of algorithm for calculating dynamic processes of railroad track deformability work

Bondarenko, I. O.

doi:10.15587/1729-4061.2016.85464

Cited by 6 publications

(5 citation statements)

References 5 publications

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“…Based on the elasticity theory and propagation of elastic waves, a method has been developed for determining the processes that lead to a change over time in local values of deformations and displacements inside elements [70,81,92,133,134]. The main advantage of the proposed modeling method is the use of the ability of elastic waves to propagate the energy of force actions (impulses) in space and time.…”

Section: Methodsmentioning

confidence: 99%

“…To overcome the problem of the absence of a time component in the analytical description of dynamic processes, it appeared necessary to use the elastic wave theory. Thus, a mathematical apparatus for simulating physical processes over time to determine the parameters of deformability based on mathematical modeling of the operation of a railway track under the influence of rolling stock [70,133,134] was developed.…”

Section: Introductionmentioning

confidence: 99%

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Dynamic Sustainable Processes Simulation to Study Transport Object Efficiency

Bondarenko¹,

Severino

Olayode

et al. 2022

Infrastructures

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The development of reliability theory has led to the setting of tasks requiring consideration of the efficiency and functional safety of technical objects of transport over the life cycle. The paper demonstrates the possibility of using the universal laws of elastic wave theory to describe natural phenomena occurring in complex dynamic systems, on the examples of solving issues arising in the interaction of rolling stock and the railway track. The accounting of the time component and the ability of elastic waves to propagate energy in time and space allowed considering any interaction process as a chain of processes, incidence-reflection-refraction of force impulses of interaction. Understanding the physics of dynamic processes that occur in objects while performing their intended functions allows developers to improve objects in such a way as to minimize their life cycle cost and maximize their ability to perform their intended functions under different operating conditions. In addition, it allows the expansion of existing methods and approaches to diagnostics of dynamic transport systems. All this is a base for making it possible to develop an innovative and effective tool for engineers and scientists to assess the impact of technosphere transport objects on human habitats.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Dynamic Sustainable Processes Simulation to Study Transport Object Efficiency

Bondarenko¹,

Severino

Olayode

et al. 2022

Infrastructures

Self Cite

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“…Modeling the life cycle of the deformability work of the railway track involves considering the problem in a stochastic formulation because the use of numerical methods does not allow describing the change in rail deformations under the influence of rolling stock wheels over time. However, the basis of the modeling used in the work is the presence of wave processes caused by both external and internal vibrations of the track structure elements [50,80]. Thus, the variability of the problem statement is reduced by establishing a pattern between the magnitude of the impact and the processes of vibration of the track structure over time for specific operating conditions.…”

Section: Methodsmentioning

confidence: 99%

“…In the numerical simulation [78,79], the conditions are simulated to obtain a relevant result. However, to assess risks, it is necessary to employ analytical methods, using timespace dependencies [80][81][82][83] to model the processes both within elements of the structure and in the track structure as a whole.…”

Section: Introductionmentioning

confidence: 99%

Using Detailing Concept to Assess Railway Functional Safety

Bondarenko¹,

Campisi

Tesoriere

et al. 2022

Sustainability

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The ability to assess the risks of the functional safety of railway tracks allows harmonizing characteristics of track elements under certain operating conditions under certain maintenance for the efficient use of the track structure throughout its life cycle. The concept of detailing conditions of the interaction of the rolling stock and railway track was used for the productive solution of tasks of infrastructure functional safety assessment. The paper formed an approach to the analytical solution of determination problems of deformability parameters over time using the elastic waves theory. The formation method of interconnections between the technical and economic aspects of the operation of railway infrastructure was proposed. The criteria of deformability work and intensity of use were utilized for the effective use of the track structure through its life cycle. The results of calculations are presented to assess changes in the deformability behaviour of the track elements and structure when the force and speed parameters of the operating conditions change, as well as the algorithm of the method for estimating the operation deformability of the railway track. Thus, the proposed approach can be adapted to optimize objects by railway functional safety assessment at the stage of object operation simulation.

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“…Consideration of the requirements of both components helps explore and understand the nature of the development of certain phenomena [31,32] in the process of the interaction between the components. These phenomena influence the functional safety of transport infrastructure [33][34][35][36][37][38][39][40][41][42][43].…”

Section: Introductionmentioning

confidence: 99%

Investigation of Dynamic Processes of Rolling Stock–Track Interaction: Experimental Realization

et al. 2023

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The dynamic process of the railway track–rolling stock interaction is characterized by time-dependent dynamics that are determined by both the varying characteristics of the interaction objects and the varying climatic conditions. This study investigated the effect of different groups of influence on the dynamic process, with a view towards the reduction of the cases of randomness during the registration of the process in experiments and an expansion of the understanding of the processes happening during the assessment of the registered data. The static nature of the rolling stock has been demonstrated to be not uniform and to influence the scattering of dynamic values under the variation of vertical and horizontal forces due to the characteristics of a rolling stock. The position of the rolling stock truck relative to the track axis during the movement of the rolling stock has been shown to enhance static non-uniformity. The results of the longitudinal force measurements under the three-point and Schlumpf methods have suggested that it is necessary to investigate the process of rail warping under the action of the rolling stock wheels. To enhance the output of the experiments, it is proposed to consider not only the stiffness of the basis of the oscillatory processes that imitate the physical process of oscillation of the system elements by means of the oscillation amplitude, but also the time of response to the oscillation process by using and assessing the triggering time rather than the frequencies of the oscillation processes.

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Development of algorithm for calculating dynamic processes of railroad track deformability work

Cited by 6 publications

References 5 publications

Dynamic Sustainable Processes Simulation to Study Transport Object Efficiency

Dynamic Sustainable Processes Simulation to Study Transport Object Efficiency

Using Detailing Concept to Assess Railway Functional Safety

Investigation of Dynamic Processes of Rolling Stock–Track Interaction: Experimental Realization

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