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1
Content available Reliability analysis of crane lifting mechanism
Faltinová E., Mantič M., Kuľka J., Kopas M.
Zeszyty Naukowe. Transport / Politechnika Śląska
|
2018
|
z. 98
15--26
EN
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.
2
Content available Power loss in a combustion engine of a prototype vehicle
Petróci J., Mantič M., Sloboda O.
Diagnostyka
|
2017
|
Vol. 18, No. 2
59--64
EN
The paper deals with the analysis of power loss involved in an experimental single-cylinder internal combustion engine during its operation. The experimental engine has been developed and built entirely at the University for the purposes of Shell Eco-marathon. A series of experimental measurements was taken to discover the reasons for the issues we had encountered by obtaining output power characteristics and the value of compression pressure regularly at specific intervals. The data we obtained served to diagnose faults and to propose solutions for their elimination.
3
Content available Assessing the need for rope replacement in crane lifting equipment after change of crane operational parameters
Kuľka J., Mantič M., Kopas M., Faltinová E.
Advances in Science and Technology. Research Journal
|
2017
|
Vol. 11, no 2
226--230
EN
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.
4
Content available Special device for continuous deceleration of freight cableway trucks
Mantič M., Kuľka J., Kopas M., Faltinová E., Petróci J.
Zeszyty Naukowe. Transport / Politechnika Śląska
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2016
|
z. 91
89--97
EN
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.
5
Content available Kinematic linkages in the hinged undercarriage of a mobile working machine
Kuľka J., Kopas M., Faltinová E., Mantič M., Bigoš P.
Zeszyty Naukowe. Transport / Politechnika Śląska
|
2016
|
z. 91
81--88
EN
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.
6
Content available Increasing durability in steel wire rope installed in special transport equipment
Kopas M., Kuľka J., Mantič M., Faltinová E., Bigoš P.
Zeszyty Naukowe. Transport / Politechnika Śląska
|
2016
|
z. 91
71--80
EN
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.
7
Content available Design of a compact dual-purpose starting clutch in the drive of a prototype vehicle
Petróci J., Mantič M., Kuľka J., Boslai R.
Zeszyty Naukowe. Transport / Politechnika Śląska
|
2016
|
z. 91
107--112
EN
Initially, the development of a dual-purpose clutch was based on racing experiences and application requirements, as well as the results from testing the new power unit in the existing prototype vehicle. In order to achieve the highest possible driving range of the prototype vehicle, it has been necessary to eliminate the maximum possible losses and drive in unnecessary components. The design aimed to achieve simple access, reliability and low weight.
8
Content available Diagnostics and optimisation of crane track durability in metallurgical plant
Kuľka J., Faltinová E., Kopas M., Mantič M.
Diagnostyka
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2016
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Vol. 17, No. 3
41--46
EN
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.
9
Content available Autonomous online system for evaluating steel structure durability
Mantič M., Kuľka J., Faltinová E., Kopas M.
Diagnostyka
|
2016
|
Vol. 17, No. 3
15--20
EN
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.
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