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Autonomous online system for evaluating steel structure durability

100%

Mantič M. , Kuľka J. , Faltinová E. , Kopas M.

Diagnostyka

2016

tom Vol. 17, No. 3

15--20

The article deals with the design of equipment and its application possibilities for on-line monitoring of operational stress traverse mechanisms. By processing of load spectra it is possible to predict the remaining life in the selected areas of the construction.

Reliability analysis of crane lifting mechanism

100%

Faltinová E. , Mantič M. , Kuľka J. , Kopas M.

Zeszyty Naukowe. Transport / Politechnika Śląska

2018

tom z. 98

15--26

This paper focuses on a reliability analysis of various structural variants of a crane lifting mechanism. The reliability of such a mechanism is a basic requisite for the safe operation of the crane as a whole. The article analyses and jointly evaluates structural solutions for the lifting mechanism in a bridge crane, in order to emphasize the technical aspects of system reliability in this context.

Diagnostics and optimisation of crane track durability in metallurgical plant

100%

Kuľka J. , Faltinová E. , Kopas M. , Mantič M.

Diagnostyka

2016

tom Vol. 17, No. 3

41--46

This paper deals with questions concerning technical diagnostics and optimisation of fatigue durability for the crane track beams installed in a metallurgical plant. The fatigue durability is determined using a strain gauge measurement in order to calculate the relevant residual durability of the crane track beams. Consequently, there are proposed suitable measures that are necessary with regard to the next operation of the given crane track, which is supporting a bridge crane.

Assessing the need for rope replacement in crane lifting equipment after change of crane operational parameters

100%

Kuľka J. , Mantič M. , Kopas M. , Faltinová E.

2017

tom Vol. 11, no 2

226--230

This article describes a specific analysis and evaluation process of a foundry crane installed in a steel mill. The main task was to analyse the possibility of increasing the lifting speed of the crane in order to improve the efficiency of the production process. The condition of the steel supporting structure of the given foundry crane was assessed by means of the performed experimental measurements and calculations. The present article describes the special experimental/analytical methodology for the evaluation of the crane steel construction and lifting and travelling mechanisms. Furthermore, the required modifications of the individual crane construction parts are explained.

Kinematic linkages in the hinged undercarriage of a mobile working machine

88%

Kuľka J. , Kopas M. , Faltinová E. , Mantič M. , Bigoš P.

tom z. 91

81--88

The main purpose of this article is to present a possible description of kinematic characteristics concerning the direction of travel of a selected mobile working machine in motion, namely, a hinged loader. This description is presented in the form of equations, which define the circumferential velocity as well as the angular velocity of the vehicle wheels during a ride involving a curve. In this way, it is also possible to describe a function of the axle differential.

Increasing durability in steel wire rope installed in special transport equipment

88%

Kopas M. , Kuľka J. , Mantič M. , Faltinová E. , Bigoš P.

tom z. 91

71--80

In this paper, special transport-handling equipment is presented for the purpose of pushing wagons in a trans-shipment facility. During operations, the rotary tilter device, which is an integrated part of the trans-shipment process, leads to excessive wear of the steel wire rope used for pushing wagons by means of a pusher system. Therefore, the main task was to propose a suitable design modification of the given pusher system in order to eliminate excessive wear of the rope and, in turn, to prolong operational durability for this steel wire rope, as well as for the whole technical system.

Special device for continuous deceleration of freight cableway trucks

88%

Mantič M. , Kuľka J. , Kopas M. , Faltinová E. , Petróci J.

tom z. 91

89--97

This paper is focused on the design of an auxiliary braking device for freight cableway trucks. The device provides continuous deceleration for the trucks before they arrive at the unloading station. It presents an alternative to manual deceleration, which poses safety hazards and is therefore a less suitable option. The design distinctly accommodates the spatial disposition at the unloading station and involves minimal interventions to the existing steel structure. Above all, it aims to increase safety by eliminating the need for human input in the process of decelerating the trucks before they are emptied. The proposed design solution was successfully applied in a real operation.