Development of a Modular Didactic Laboratory Set for the Experimental Study of Friction

Miljojković, Jasmina; Kocovic, Vladimir; Luković, Milentije; Živković, Aleksandra; Šimunović, Katica

doi:10.17559/tv-20210925171045

Cited by 3 publications

(1 citation statement)

References 30 publications

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“…Although based on Euler's approach, the presented research further generalises the application of the method for significantly more complex tribological processes than the study of friction on an inclined plane. Following Euler's idea, several tribometers intended for the determination of kinetic friction coefficient were realised [23][24][25][26]. The published results indicate a great potential for this method in terms of an essential understanding of dynamic processes, friction phenomena, and a wide range of possible applications.…”

Section: Introductionmentioning

confidence: 99%

Relation between Kinetic Friction Coefficient and Angular Acceleration during Motion Initiated by Dynamic Impact Force

2022

Teh. vjesn.

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The paper presents theoretical and experimental analyses of the kinetic friction coefficient of a ball bearing in conditions of rotational motion initiated by dynamic impact force. A method has been developed and a measurement system allows the measurement of a kinetic coefficient of friction through the measurement of the angular acceleration. This paper considers the friction caused by rotational motion initiated by the force impact impulse. After the external force (impact impulse) stops acting, the motion continues, and the loaded bearing (i.e. the zone of the bearing in which the frictional resistance forces act) exhibits a broad spectrum of velocities, from the maximum value at the moment of motion initiation to the zero value when motion stops, where the whole measuring system acts as a rotary encoder. Experimental results indicate a high dependency between angular velocity and friction coefficient, similar to functional dependency. This paper proves that kinetic friction coefficient can be reliably measured using the measurements of angle change and angular velocity. Analysed method has high potential in the diagnostics of energy loss in the tribo-mechanical systems.

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Section: Introductionmentioning

confidence: 99%

Relation between Kinetic Friction Coefficient and Angular Acceleration during Motion Initiated by Dynamic Impact Force

2022

Teh. vjesn.

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On the determination of the friction-caused energy losses and its potential for monitoring industrial tribomechanical systems

Miljanić,

Milovanović,

Vukelić

et al. 2023

Int J Adv Manuf Technol

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The paper refers to a new method to quantify the energy losses due to frictional effects and imperfections in contacts in the case of real industrial tribomechanical systems. Whereby energy losses represent an integral indicator of quality of the real industrial tribomechanical system, in terms of the characteristics of the contact element materials, geometric accuracy, and manufacturing and assembly errors. This paper presents a very complex theoretical model based on the differential equation of motion of a real tribomechanical system down a steep plane. The outputs of the theoretical model are exact mathematical expressions that de ne the current values of the coe cient of friction and the frictioncaused energy losses. The measuring system enables the quanti cation of current values of the distance traveled per unit of time. Based on a series of experimentally determined values of distance traveled per unit of time, the values of energy losses of the real industrial tribomechanical system are determined using the developed theoretical model and the appropriate software support. The obtained results indicate a high reliability, a large potential and a wide range of possible applications of the proposed method.

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On the Determination of the Friction-Caused Energy Losses and its Potential for Monitoring Industrial Tribomechanical Systems

Miljanić¹,

Milovanović

Vukelić³

et al. 2023

Preprint

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The paper refers to a new method to quantify the energy losses due to frictional effects and imperfections in contacts in the case of real industrial tribomechanical systems. Whereby energy losses represent an integral indicator of quality of the real industrial tribomechanical system, in terms of the characteristics of the contact element materials, geometric accuracy, and manufacturing and assembly errors. This paper presents a very complex theoretical model based on the differential equation of motion of a real tribomechanical system down a steep plane. The outputs of the theoretical model are exact mathematical expressions that define the current values of the coefficient of friction and the friction-caused energy losses. The measuring system enables the quantification of current values of the distance traveled per unit of time. Based on a series of experimentally determined values of distance traveled per unit of time, the values of energy losses of the real industrial tribomechanical system are determined using the developed theoretical model and the appropriate software support. The obtained results indicate a high reliability, a large potential and a wide range of possible applications of the proposed method.

show abstract

Development of a Modular Didactic Laboratory Set for the Experimental Study of Friction

Cited by 3 publications

References 30 publications

Relation between Kinetic Friction Coefficient and Angular Acceleration during Motion Initiated by Dynamic Impact Force

Relation between Kinetic Friction Coefficient and Angular Acceleration during Motion Initiated by Dynamic Impact Force

On the determination of the friction-caused energy losses and its potential for monitoring industrial tribomechanical systems

On the Determination of the Friction-Caused Energy Losses and its Potential for Monitoring Industrial Tribomechanical Systems

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