Search Results - "Jozef KRAJŇÁK"

HAZARDS RELATED TO ACTIVITIES OF FIRE-RESCUE DEPARTMENT MEMBERS DURING THE COVID-19 PANDEMIC by TOMAŠKOVÁ, Marianna, BALÁŽIKOVÁ, Michaela, KRAJŇÁK, Jozef

“…Today, being a member of the Fire-Rescue Department (FRD) is challenging as it is a risky and professionally demanding job, which often requires an individual…”
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Optimization of noisiness of mechanical system by using a pneumatic tuner during a failure of piston machine by Žuľová, Lucia, Grega, Robert, Krajňák, Jozef, Fedorko, Gabriel, Molnár, Vieroslav

“…The stage of construction and operation of the machines requires monitoring of the steps causing negative effects on humans and environment in the form of…”
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The failures of flexible couplings due to self-heating by torsional vibrations – validation on the heat generation in pneumatic flexible tuner of torsional vibrations by Krajňák, Jozef, Homišin, Jaroslav, Grega, Robert, Kaššay, Peter, Urbanský, Matej

“…•Failures of elastic elements of flexible coupling.•Impact of vibrations on thermodynamic conditions in the pneumatic tuner.•Experimental verification of…”
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Failure analysis of driveshaft of truck body caused by vibrations by Grega, Robert, Krajňák, Jozef, Žuľová, Lucia, Fedorko, Gabriel, Molnár, Vieroslav

“…In recent years, a current trend of mechanical engineers is to design such mechanical drives which will have a guaranteed life time. In this guaranteed…”
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Novel Design of Variable Stiffness Pneumatic Flexible Shaft Coupling: Determining the Mathematical-Physical Model and Potential Benefits by Kaššay, Peter, Grega, Robert, Urbanský, Matej, Krajňák, Jozef, Kačír, Matúš, Žuľová, Lucia

“…Presently, mechanical system vibroisolation is becoming increasingly important. One of the new approaches is semi-active vibroisolation using elements capable…”
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Influence of pressure on the change of temperature inside the elastic element under dynamic stress by Krajňák, Jozef, Grega, Robert, Puškár, Michal

“…The article describes the change in temperature inside the elastic element when the pressure changes. These flexible elements are used in flexible pneumatic…”
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Analysis of air-traffic threats by PAČAIOVÁ, Hana, TOMAŠKOVÁ, Marianna, BALÁŽIKOVÁ, Michaela, KRAJŇÁK, Jozef

“…Globally, air transport has seen a greater increase in recent years. This manuscript is divided into three parts for analysing the negative effects of…”
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Electronic Constant Twist Angle Control System Suitable for Torsional Vibration Tuning of Propulsion Systems by Homišin, Jaroslav, Kaššay, Peter, Urbanský, Matej, Puškár, Michal, Grega, Robert, Krajňák, Jozef

“…Currently, great emphasis on reducing energy consumption and harmful emissions of internal combustion engines is placed. Current control technology allows us…”
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EXPERIMENTAL VERIFICATION OF THE IMPACT OF A TECHNICAL GAS-USING PNEUMATIC COUPLING ON TORSIONAL OSCILLATION by GREGA, Robert, KRAJŇÁK, Jozef, MORAVIČ, Marek

“…The field of reducing torsional vibration of mechanical systems has seen the emergence of new flexible coupling designs. Our attention is focused on flexible…”
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Comparation of the impact of selected technical gases on properties of a pneumatic flexible coupling by Grega, Robert, Krajňák, Jozef, Harachová, Daniela

“…An important part of the oscillating mechanical drives are flexible shaft couplings. The special use of the pneumatic flexible coupling is possibility to serve…”
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APPLICATION OF APPARATUS – NOISENESS ANALYSER ON LABORATORY CONDITIONS by Jozef KRAJŇÁK, Robert GREGA

“…Noise and vibration are concomitant work processes, all machinery possibly different production machines or vehicles. Vibration and noise of the working…”
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THE REDUCTION OF VIBRATIONS IN A CAR – THE PRINCIPLE OF PNEUMATIC DUAL MASS FLYWHEEL by Robert GREGA, Jozef KRAJŇÁK, Peter BARAN

“…The dual-mass flywheel replaces the classic flywheel in such way that it is divided into two masses (the primary mass and the secondary mass), which are…”
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Multi-user Detection of Nonlinearly Distorted MC-CDMA Symbols by Microstatistic Filtering by Krajňák, Jozef, Deumal, Marc, Pavelka, Pavol, Kocur, Dušan, Pijoan, Joan Lluís, Galajda, Pavol

“…Multi-carrier code division multiple access is a powerful modulation technique that is being considered in many emerging broadband communication systems. In a…”
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DESIGN AND ASSESSMENT OF THE EFFECTIVENESS OF ACOUSTIC MEASURES IN THE WORKING ENVIRONMENT by Moravec, Marek, Krajňák, Jozef

“…Keywords: noise, measurements, acoustic measures, design INTRODUCTION Noise reduction was implemented at a pair of specific workplaces, in a company for the…”
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Innovative Solution of Torsional Vibration Reduction by Application of Pneumatic Tuner in Shipping Piston Devices by Grega, Robert, Krajnak, Jozef, Žuľová, Lucia, Kačír, Matúš, Kaššay, Peter, Urbanský, Matej

“…The industries of shipping, shipbuilding and port operations are among those in which mechanical drives with piston machines are widely used. The wide use of…”
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INFLUENCE OF GASEOUS MEDIA ON DAMPING OF PNEUMATIC COUPLINGS by Jozef KRAJŇÁK

“…In our department has long been devoted specifically flexible pneumatic shaft couplings. These couplings are filled with a gaseous medium air. Examination, we…”
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GEARBOX LUBRICATION SYSTEM OPTIMIZATION by Maláková, Silvia, Sivák, Samuel, Krajňák, Jozef

“…The aim of gearbox lubrication is to reduce wear on the sides of the teeth, increase of the efficiency by reducing friction as well as dissipating the heat…”
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INVESTIGATION OF THE CHANGE IN TEMPERATURE INSIDE THE ELASTIC ELEMENT DEPENDING ON THE SPEED AT A CONSTANT PRESSURE IN THE ELEMENT by Krajňák, Jozef, Moravec, Marek, Grega, Robert

“…The article investigates the change in temperature inside the elastic element at three different speeds and a constant pressure of 300 kPa inside the elastic…”
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ANALYSIS OF THE IMPACT OF FLEXIBLE COUPLINGS ON GEARBOX VIBRATIONS by GREGA, Robert, HOMIŠIN, Jaroslav, KRAJŇAK, Jozef, URBANSKÝ, Matej

“…Dangerous vibrations of mechanical systems’ components are causes of failures and reduction in service life, as well lead to negative effects on the…”
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VALUE OF DEFORMATION ENERGY DEPENDING ON DEFORMATION OF FLEXIBLE PNEUMATIC ELEMENT by Krajňák, Jozef, Grega, Robert, Maláková, Silvia, Frankovský, Peter

“…The article describes a flexible element used in flexible pneumatic couplings. These elements are manufactured by various manufacturers and are mostly made of…”
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