A5039402941- Mechanical Engineering Research and Applications
- Mining and Industrial Processes
- Mechanical and Thermal Properties Analysis
- Structural Engineering and Materials Analysis
- Hydraulic and Pneumatic Systems
- Advancements in Materials Engineering
- Geotechnical and Geomechanical Engineering
- Control Systems in Engineering
- Industrial Engineering and Technologies
- Mining and Gasification Technologies
- Electromagnetic Launch and Propulsion Technology
- Renewable energy and sustainable power systems
- Structural Engineering and Vibration Analysis
- Engine and Fuel Emissions
- Metal Alloys Wear and Properties
- Engineering and Environmental Studies
- Mineral Processing and Grinding
- Life Cycle Costing Analysis
- Building energy efficiency and sustainability
- Drilling and Well Engineering
- Agriculture and Farm Safety
- Gear and Bearing Dynamics Analysis
- Renewable Energy and Sustainability
- Geotechnical and Mining Engineering
- Tunneling and Rock Mechanics
KOMAG Institute of Mining Technology
2014-2024
Silesian University of Technology
2005-2017
Łukasiewicz Research Network - Institute of Welding
2013
Abstract The problem of cooperation powered roof support with the floor in aspect shaping its design is presented. From analysis simplifying assumptions considered so far methods for determination support’s base pressure on floor, it results that they are not satisfied case bases catamaran type, commonly used currently manufactured supports. Model lying prepared by finite elements method described and computer simulation action given. Considering numerical analyses, factors influencing...
Abstract Results of experimental tests aiming at determination base pressure on the floor, carried out within “Geosoft” project, are presented. The included stand with use unique measuring instrumentation and special hydraulic cushion as well load roof support set to in operating longwall panel. measurement results confirmed necessity consider 3D model cooperation floor. Factors having impact distribution floor its maximal value were identified, taking into account test results.
The article contains a description of the design solutions proposed by authors for hybrid wind turbine bearing, in which sliding part takes over load to shaft after reaching rotation speed, ensuring hydrodynamic lubrication plain bearing and relieving rolling bearing. This allows low starting resistance power plant ensures quiet operation during use. Two conceptual were presented, differing shape journal. A mechanism automatic switching between was developed. solid simulation model this...
The article discusses laboratory methods and the corresponding computational verifying compliance with normative requirements regarding lateral correction force of powered roof support. currently used flat model only allows for checking requirement in relation to sum active forces cylinders installed Determining required value each cylinder is possible due simplified FEM a support, described research work, treated as uniform weightless elastic body loaded concentrated recreating weight...
Release valves are commonly used to protect hydraulic legs against overload caused by rock bursts or bumps. Due an essential role in ensuring safety the working, application of a release valve is conditioned positive yield test results leg equipped with such valve. A method testing, Poland, enables complex determination impact not only but also parameters leg, determining its stiffness as for example volume under-the-piston space, which has on observed pressure increase. The subject this...
Economic analysis allows for determining the required daily output under certain natural and mining conditions based on costs of production process in a particular mine infrastructure. Therefore, there is need to determine potential longwall using technical equipment at disposal mine. In case mines, when exploiting few longwalls simultaneously bumping hazards, it indispensable ensure safety. Due necessity keeping safe distance among fronts, planning their exploitation, developing prediction...
The article presents an analytical model of rock mining using experimental cutting head, in which a combination and loosening method was used. Compared to the classical methods cutting, requiring generation stress equal compressive strength, discussed head is more advantageous, because requires lower - exceeding tensile or shear strength rock. It consists breaking off fragment ledge created solid after making short undercut. purpose modelling determine shape extent surface. An crack...