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Jože Flašker
University of Maribor
Composite materialMaterials scienceFracture mechanicsStructural engineeringCrack closure
55Publications
16H-index
648Citations
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Publications 55
Newest
#1Martin KodričH-Index: 1
#2Jože Flašker (University of Maribor)H-Index: 16
Last. Stanislav Pehan (University of Maribor)H-Index: 10
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In this article the problems with the use of the common winch cart on very steep terrain planted with permanent crops are described, especially with regard to energy losses. A hypothesis is developed regarding the improved use of the potential energy that leads to the development of a new economical hydraulic machine. A transmission of the new agricultural tractor that can use the much bigger share of the effective potential energy is conceived in rough principles. A portable flatbed improves th...
1 CitationsSource
#1Boštjan TrobentarH-Index: 1
#2Srečko GlodežH-Index: 16
Last. B. ZafošnikH-Index: 4
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When designing gear drives made of polymer, the tooth tip deflection is a crucial parameter in respect to the proper gear drive operation. Excessive tooth tip deflection can lead to serious disturbances of gear meshing and consequently to increased noise and wear of the teeth flanks. In such cases the tooth tip deflection can be reduced through the use of stiff surface coatings on the tooth flanks. In this paper the influence of different coating materials and thicknesses on the tooth tip deflec...
1 CitationsSource
#1Jože FlaškerH-Index: 16
#2Boris AberšekH-Index: 8
Last. B. ZafošnikH-Index: 4
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Besides advanced nano steels, polymers and ceramics, recently also light metals, i.e., Al, Mg and Ti based materials, have been recognized as future materials for different kinds of advanced applications. Al and its alloys have an acceptable price, excellent corrosive resistance, good mechanical and other physical properties. Therefore, they are also used in the powder-metallurgy (P/M) field. The P/M technology of Al materials is very demanding and has its own specifics compared to the sintering...
#1Boris Aberšek (University of Maribor)H-Index: 8
#2Samo Kralj (University of Maribor)H-Index: 26
Last. Jože Flašker (University of Maribor)H-Index: 16
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The classical methods of solid mechanics assume that the homeomorphism of deformation sometimes does not provide an adequate description of the theological behaviour and fracture of real materials, while irreversible macro deformation and the fracture of solids are predetermined by material behaviour in nanoscale. When we talk about crack propagation, we must talk at least about four phenomena, namely about crack incubation, initiation, and crack propagation must be sleeted in two parts, to grow...
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#1Tomaž Petrun (AST)H-Index: 2
#2Jože Flašker (University of Maribor)H-Index: 16
Last. Marko Kegl (University of Maribor)H-Index: 9
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This paper deals with a theoretical and numerical study of various viscosity terms in the modified elasto-plastic friction model and their influence on the resulting friction force-torque, transmitted through the contact of the friction clutch. Various simple viscous definitions for fluids considering shear rate dependent viscosity were investigated. The Carreau fluid model was chosen as a basis for the research, since it can describe Newtonian, dilatant, and pseudo plastic fluids. In addition t...
1 CitationsSource
#1Tomaž Petrun (AST)H-Index: 2
#2Jože Flašker (University of Maribor)H-Index: 16
Last. Marko Kegl (University of Maribor)H-Index: 9
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This article focuses on the development and experimental verification of a friction model to be implemented in a fully functional friction clutch. The resulting clutch model is intended to be employed in commercial software code AVL Excite, which imposes special requirements also for the underlying friction model. These requirements are related to model implementation, available input data, required output data, model complexity, numerical stability, and model parameters. Since for a fully funct...
5 CitationsSource
#1Ales Belsak (University of Maribor)H-Index: 6
#2Jože Flašker (University of Maribor)H-Index: 16
A crack in the tooth root, which is the least desirable damage caused to gear units, often leads to failure of gear unit operation. Gear units with real damages or faults, which had been formed with the aid of numerical simulations of real operating conditions, were used for fault analyses presented in this article. A laboratory test plant was used. It is possible to identify damages by monitoring vibration. The influences that a crack in a single-stage gear unit has on produced vibrations are p...
#1Rok Poto nik (University of Maribor)H-Index: 1
#2Jože Flašker (University of Maribor)H-Index: 16
Last. Sre ko Glodež (University of Maribor)H-Index: 1
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Due to its design, a single slewing bearing can sustain axial, radial and tilting moment loads. Therefore, one slewing bearing can often replace a bearing arrangement of radial and axial bearings. The design and manufacturing costs of construction can significantly be reduced, if such rotating connections are used. However, since the manufacturing process of large slewing bearings is significantly different than the one of standard rolling bearings, different computational model has to be used t...
3 Citations
The aim of this paper is to present developed 3 DOF haptic mechanism and 3D visualization method for analysis of mechanism manipulability problems within limited space. Improvement in mechanism manipulability within cylindrical space is crucial for devices, which operate in MR tunnel. This solution enables the plotting of quantitative 3D representation for each point in the mechanism’s workspace, using selected resolution which can be determined in advance. The cross-section between the limited ...
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