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- Ground source heat pumps systems -- Testing -- Ireland | Dwellings -- Heating and ventilation | Dwellings -- Air conditioning (1)
- Human-computer interaction | Virtual reality | Computer simulation | Machine-tools -- Numerical control Human-computer interaction | Virtual reality | Computer simulation | Machine-tools -- Numerical control Human-computer interaction | Virtual reality | Computer simulation | Machine-tools -- Numerical control Human-computer interaction | Virtual reality | Computer simulation | Machine-tools -- Numerical control Human-computer interaction | Virtual reality | Computer simulation | Machine-tools -- Numerical control Human-computer interaction | Virtual reality | Computer simulation | Machine-tools -- Numerical control Human-computer interaction | Virtual reality | Computer simulation | Machine-tools -- Numerical control Human-computer interaction | Virtual reality | Computer simulation | Machine-tools -- Numerical control Human-computer interaction | Virtual reality | Computer simulation | Machine-tools -- Numerical control Human-computer interaction | Virtual reality | Computer simulation | Machine-tools -- Numerical control Human-computer interaction | Virtual reality | Computer simulation | Machine-tools -- Numerical control Human-computer interaction | Virtual reality | Computer simulation | Machine-tools -- Numerical control Human-computer interaction | Virtual reality | Computer simulation | Machine-tools -- Numerical control Human-computer interaction | Virtual reality | Computer simulation | Machine-tools -- Numerical control Human-computer interaction | Virtual reality | Computer simulation | Machine-tools -- Numerical control Human-computer interaction | Virtual reality | Computer simulation | Machine-tools -- Numerical control Human-computer interaction | Virtual reality | Computer simulation | Machine-tools -- Numerical control (1)
- Pratt & Whitney Aircraft Group -- Aircraft gas-turbines | Aircraft gas-turbines -- Blades | Gas-turbines -- Blades -- Materials | Finite element method | Airplanes -- Turbojet engines (1)
Articles 1 - 3 of 3
Full-Text Articles in Applied Mechanics
Virtual Reality Modelling Of A Cnc Machine, Damian O'Sullivan
Virtual Reality Modelling Of A Cnc Machine, Damian O'Sullivan
Theses
The increasing importance of training and upgrading skills has led to the use of new interactive technologies in the development of more effective training tools. Previous techniques for training Computer Numerical Control (CNC) machine operators, while excellent for their time, varied from brief inexpensive tutorials to expensive on the job training. A CNC machine uses a computer to perform the functions of the machine using a part program stored in the memory of the computer. This thesis describes a Virtual Reality (VR) model of a CNC milling machine, implemented within a VR environment representing a CNC workshop. Its development and …
An Investigation Using The Finite Element Method Into Bowing & Lean Of The 3rd Stage Turbine Blade Of The Pratt & Whitney Jt8d Gas Turbine Engine, Kevin O'Donoghue
An Investigation Using The Finite Element Method Into Bowing & Lean Of The 3rd Stage Turbine Blade Of The Pratt & Whitney Jt8d Gas Turbine Engine, Kevin O'Donoghue
Theses
Following a recent series of failures of overhauled third stage turbine blades in the JT8D- 15A gas turbine engine, new inspection criteria have been introduced by the engine manufacturer Pratt & Whitney. One such inspection checks for airfoil bowing and lean. A blade will bow or lean towards the suction face of the airfoil as a result of creep during engine operation. Third stage turbine blades from the JT8D low pressure turbine have been observed with as much as two millimetres of deflection measured at mid-span. In a geometrically correct T3 blade, the tensile centrifugal load due to engine rotation …
Development Of A Geothermal Heat Pump Test Facility, Chris Collins
Development Of A Geothermal Heat Pump Test Facility, Chris Collins
Theses
Current environmental concerns have led to large scale research and development in the area of alternative energy supplies. The alternative energy system of interest in this study is the heat pump. Heat pumps extract heat from a variety of sources such as air, water and the earth, upgrade and transmit it to the required location. The aim of this thesis is to develop mathematical and experimental models to evaluate the performance of a heat pump which uses the earth as its thermal source. These models will then form the basis of design aids for installers sizing closed loop collection systems …