Substantiation of Parameters for the Tunnel Erector with Two Manipulators

Zabolotnyi, Kostiantyn; Panchenko, Olena; Zhupiev, O.

doi:10.4028/www.scientific.net/aef.25.43

Cited by 2 publications

(2 citation statements)

References 5 publications

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“…Occurrence of emergency situations in the process of hoisting machine operations results not only in substantial material losses; they are also often dangerous for human life. Thus, braking system of hoisting equipment is the basic protective means against emergency situations (Zabolotny, Zhupiev, & Molodchenko, 2015;Zabolotnyi, Panchenko, & Zhupiev, 2017).…”

Section: The Problem Definitionmentioning

confidence: 99%

Development of a model of contact shoe brake-drum interaction in the context of a mine hoisting machine

Zabolotnyi¹,

Жупієв²,

Molodchenko³

2017

Min. miner. depos,

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Purpose. To develop models of contact brake shoe-drum interaction of a mine hoisting machine while braking, taking into account final bending stiffness of a beam and the effect of friction forces on the distribution of a contact pressure in it to make recommendations as for the rational design of a brake beam.Methods. Laws of contact force distribution, forces within a vertical post, and braking moment arising in the braking process have been formulated with the help of exclusion method and Euler's method. Findings.Areas to apply the hypotheses on absolute stiffness of a beam and the non-effect of friction forces on the distribution of contact pressure in it while calculating force of brakes of mine hoisting machines have been analyzed. Physical and mathematical models of contact interaction between a brake beam of a mine hoisting machine and a drum in the braking process have been developed. Originality.For the first time, physical model of a brake lining in the form of a group of elastic non-interacting bodies of Winkler foundation has been developed. The bodies resist compression and transfer through themselves distributed friction forces arising between brake drum and brake shoe; the friction forces are meant for limiting balance state in accordance with Coulomb's law; physical model of a brake beam in the shape of uniform-section circular bar mounted on a vertical post and interacting with a brake drum through brake lining loaded with distributed normal and tangential load modeling contact brake shoe-drum interaction, and a vertical post has been modeled as a movable pivot point located in the medial part of the circular bar. For the first time, mathematical model to determine both tangential and normal forces acting on a brake beam has been formulated. Practical implications.The developed recommendations concerning the use of different models of the braking process make it possible to generate the most rational model for force calculation of a brake beam using finite-element method. Keywords: physical and mathematical models of beam and lining, mine hoisting machine shoe brake, Euler's method, Coulomb's law

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Section: The Problem Definitionmentioning

confidence: 99%

Development of a model of contact shoe brake-drum interaction in the context of a mine hoisting machine

Zabolotnyi¹,

Жупієв²,

Molodchenko³

2017

Min. miner. depos,

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“…Сьогодні наукові дослідження стосуються вдосконалення конструкцій тюбінгоукладачів [1,2]. Як показали результати розгляду цього питання, відомі конструкції тюбінгоукладачів мають підвищену металоємність [3] і потужність приводів. Це тому, що нині не існує науково обґрунтованої методики визначення раціональних параметрів таких машин.…”

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Integrated approach to analyzing the stress-strain state of the tubbing erector manipulator mechanism based on the SolidWorks program

Panchenko

2023

Coll. res. pap. nat. min. univ.

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Purpose. The research purpose is todevelop and substantiate a method for computer analysis of the stress-strain state that occurs in the tubbing erector manipulator mechanism with several degrees of freedom, using modern computing complexes based on the finite-element method. Methods. The research uses software complexes, with the help of which a calculation-theoretical apparatus has been created, which is intended for calculating dynamic and static loads that occur in the elements of the tubbing erector manipulator mechanism. The results of modeling the stress-strain state in the parts and nodes of this mechanism, obtained using the SolidWorks Motion and SolidWorks Simulation programs, have been compared. The errors in these results have been estimated. Findings. The effectiveness of the proposed analysis method, based on the combination of SolidWorks applications, in particular, SolidWorks Motion and SolidWorks Simulation, has been proven on the example of modeling the most complex design of the UT62 tubbing erector mechanism.The essence of the method is that initially, using the SolidWorks Motion application, the laws of motion of the motors are set. The tubbing erecting process itself is divided into discrete moments of time with the selection of parts in which the stress fields are calculated and with the determination of the maximum equivalent stress, using the Simulation Setup tool. The change in these stresses during the erecting cycle is analyzed, and if it is necessary to refine the data, the discrete time step of the mechanism motion is reduced. Specific information about the stress-strain state of the part is obtained in the SolidWorks Simulation application, using data imported from the SolidWorks Motion program about gravitational and inertial forces that occur in the tubbing erector mechanism. Originality. The scientific novelty of the developed method of computer analysis for the mechanism of the manipulator of the UT62 type tubing stacker is manifested in a comprehensive approach to modeling the stress-strain state, which includes the integration of data from SolidWorks Motion and SolidWorks Simulation programs for accurate determination of stresses, taking into account both gravitational forces and dynamic loads, which ensures high accuracy and complexity of calculations in real operating conditions of the mechanism. Practical implications. The proposed method can be used for modeling the motion of mechanisms of different complexity, in particular, in the design of domestic tubbing erectors.

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Substantiation of Parameters for the Tunnel Erector with Two Manipulators

Cited by 2 publications

References 5 publications

Development of a model of contact shoe brake-drum interaction in the context of a mine hoisting machine

Development of a model of contact shoe brake-drum interaction in the context of a mine hoisting machine

Integrated approach to analyzing the stress-strain state of the tubbing erector manipulator mechanism based on the SolidWorks program

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