Numerical studies on influence of friction coefficient in multi-leaf spring on suspension basic characteristics

Krasoń, W.; Hryciów, Z.; Wysocki, J.

doi:10.1063/1.5092052

Cited by 7 publications

(3 citation statements)

References 4 publications

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“…The truck suspension with a multi-sheet spring suspension was investigated in work [9]. It is noted that friction bet ween the sheets of the spring has a significant impact on the parameters of smooth running.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Comparing the physical principles of action of suspension damping devices based on their influence on the mobility of wheeled vehicles

Dushchenko

Vorontsov

Masliyev

et al. 2021

EEJET

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This paper reports the comparison of two physical principles of action of suspension damping devices based on their influence on the mobility indicators for an 8×8 wheeled machine. A radical difference between these principles of action is the dependence of resistance forces on the speed of the relative movement of working bodies (internal friction: hydraulic shock absorbers) or on the relative movement of working bodies (external friction: friction shock absorbers). Widespread hydraulic shock absorbers have certain disadvantages that do not make it possible to further increase the mobility of wheeled or tracked vehicles without the use of control and recuperation systems. In turn, in friction shock absorbers, the use of new materials has eliminated many of their shortcomings and thus can provide significant advantages. It was established that the application of friction shock absorbers for a given wheeled vehicle did not significantly affect the speed compared to hydraulic ones. The main factor that prevented the implementation of the advantages of friction shock absorbers was the insufficient suspension travel. However, friction shock absorbers absorbed 1.76...2.3 times less power, which reduced the load on nodes and increased efficiency (autonomy). In addition, a more uniform load on suspensions was ensured, which improved their resource, and, due to the prevailing vertical oscillations of the suspended body over the longitudinal-angular ones, the geometric passability improved as well. The comparison of two physical principles of action of damper suspension devices in a wheeled vehicle has shown that the use of friction shock absorbers could provide significant advantages in resolving the task relates to improving the mobility and would fundamentally affect the choice of the suspension energy recuperation system if it is applied.

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Section: Literature Review and Problem Statementmentioning

confidence: 99%

Comparing the physical principles of action of suspension damping devices based on their influence on the mobility of wheeled vehicles

Dushchenko

Vorontsov

Masliyev

et al. 2021

EEJET

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“…These elements have an important role in providing structural stability to the component. Examples of connection elements are spring buckles, clamps, or threaded rods [1][2][3][4][5]. Assembling leaf springs by threading are most often found in road freight vehicles, light and heavy vehicles [1][2][3]5,6].…”

Section: Introductionmentioning

confidence: 99%

“…Examples of connection elements are spring buckles, clamps, or threaded rods [1][2][3][4][5]. Assembling leaf springs by threading are most often found in road freight vehicles, light and heavy vehicles [1][2][3]5,6]. This assembling method requires that during the manufacturing process of the leaves, a through hole is produced.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Analysis of the Assembling Stresses in Parabolic Leaf Springs for Railway Freight Wagons

Gomes,

de Figueiredo,

Correia

et al. 2024

Preprint

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Leaf springs are suspension components constituted of several structural and assembly components. Once the leaves are assembled, a stress state due to the assembly process is developed. Thus, the quantification of the assembly stress level should be known in order to be accounted for in the structural design. The aim of this article is precisely to quantify the assembly stress level in parabolic leaf springs for railway freight wagons. An experimental method with the aid of extensometry is considered to evaluate elastic assembly stresses. Next, a numerical model of the leaf spring assembly process with the required boundary conditions is developed to support the experimental results and allow obtaining a distribution of surface stresses along the master leaf length. The development of this work resulted in a surface stress profile along the length of the master leaf generated by the assembly process, where the deviations of the numerical outcomes regarding the analysed spots with strain gauges are mostly of little relevance.

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A parametric analysis on the performance of vehicle tires

Mohanta

Kumar

2023

Materials Today: Proceedings

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Numerical studies on influence of friction coefficient in multi-leaf spring on suspension basic characteristics

Cited by 7 publications

References 4 publications

Comparing the physical principles of action of suspension damping devices based on their influence on the mobility of wheeled vehicles

Comparing the physical principles of action of suspension damping devices based on their influence on the mobility of wheeled vehicles

Experimental and Numerical Analysis of the Assembling Stresses in Parabolic Leaf Springs for Railway Freight Wagons

A parametric analysis on the performance of vehicle tires

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