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Articles 1 - 30 of 64
Full-Text Articles in Mechanical Engineering
The Development Of A Temperature Probe And Temperature Survey Of The Interaction Of An Oblique Shock Wave And A Turbulant Boundary Layer, Donald M. Yano
The Development Of A Temperature Probe And Temperature Survey Of The Interaction Of An Oblique Shock Wave And A Turbulant Boundary Layer, Donald M. Yano
Mechanical Engineering ETDs
The purpose of this investigation was to develop a miniature air temperature probe and to measure temperatures in the interaction region of an oblique shock wave and a turbulent boundary layer.
Test 855: Allis-Chalmers D-21 (Diesel), Nebraska Tractor Test Lab
Test 855: Allis-Chalmers D-21 (Diesel), Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …
Test 854: Massey-Ferguson Mf 25 (Diesel), Nebraska Tractor Test Lab
Test 854: Massey-Ferguson Mf 25 (Diesel), Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …
Test 853: John Deere 4020 Lpg, Nebraska Tractor Test Lab
Test 853: John Deere 4020 Lpg, Nebraska Tractor Test Lab
Nebraska Tractor Tests
No abstract provided.
Test 852: John Deere 3020 Lpg, Nebraska Tractor Test Lab
Test 852: John Deere 3020 Lpg, Nebraska Tractor Test Lab
Nebraska Tractor Tests
No abstract provided.
Test 850: John Deere 4020 Gasoline, Nebraska Tractor Test Lab
Test 850: John Deere 4020 Gasoline, Nebraska Tractor Test Lab
Nebraska Tractor Tests
No abstract provided.
Test 851: John Deere 3020 Gas, Nebraska Tractor Test Lab
Test 851: John Deere 3020 Gas, Nebraska Tractor Test Lab
Nebraska Tractor Tests
No abstract provided.
Test 848: John Deere 3020 Diesel, Nebraska Tractor Test Lab
Test 848: John Deere 3020 Diesel, Nebraska Tractor Test Lab
Nebraska Tractor Tests
No abstract provided.
Test 849: John Deere 4020 Diesel, Nebraska Tractor Test Lab
Test 849: John Deere 4020 Diesel, Nebraska Tractor Test Lab
Nebraska Tractor Tests
No abstract provided.
Test 847: Oliver 1900 Series B Diesel 4wd, Nebraska Tractor Test Lab
Test 847: Oliver 1900 Series B Diesel 4wd, Nebraska Tractor Test Lab
Nebraska Tractor Tests
No abstract provided.
Test 846: Oliver 1800 4wd, Nebraska Tractor Test Lab
Test 846: Oliver 1800 4wd, Nebraska Tractor Test Lab
Nebraska Tractor Tests
No abstract provided.
Test 845: Ford 5000 (Diesel), Nebraska Tractor Test Lab
Test 845: Ford 5000 (Diesel), Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …
Analysis Of The Transient Response Of A Flat Rotating Disk By Generalized Transforms, Kenneth Wayne Chase
Analysis Of The Transient Response Of A Flat Rotating Disk By Generalized Transforms, Kenneth Wayne Chase
Theses and Dissertations
The object of this thesis was to lay a foundation for a comprehensive study of the dynamic response of rotating members. This initial phase of the study includes a theoretical investigation and proposes experimental techniques for the determination of the stresses and strains in a thin, rotating disk with a concentric hole, subjected to transient shaft inputs. There are many practical applications of this problem including computor memory storage disks, turbine rotors, grinding wheels, saw blades, gears, optical reflectors, and solar sails for space vehicles.
Analysis Of Steady State Heat Flux Measurement By The Initial Slope Technique, Charles Earl Cartmill
Analysis Of Steady State Heat Flux Measurement By The Initial Slope Technique, Charles Earl Cartmill
Theses and Dissertations
The impulse technique is progressively being developed for determining the steady state rate of heat transfer systems involving exponential temperature-time histories. A pulse thermocouple system has been utilized in such a technique having a steady state response time on the order of one time constant of the thermocouple used. When an impulse thermocouple system is not used, the required time in obtaining the steady state value is on the order of five time constants or the time required to reach steady state.
Radiant Flux Distribution From Concave Radiation Sources, Richard K. Duke
Radiant Flux Distribution From Concave Radiation Sources, Richard K. Duke
Theses and Dissertations
In order to analyse the radiant heat transfer characteristics of a concave source, two vital concepts must be clearly understood. The first is called the apparent emissivity Ea and is a function of both the local total emissivity E and of the geometry of the source. Although the total emissivities of ordinary substances range between zero and one, the two extremeties never occur. Surface emissivities which approach these values in the limit, must be created mechanically from materials in the range 0
Design And Fabrication Of An Apparatus To Determine Heat Transfer Coefficients In An Air-Particle Mixture Over A Horizontal Flat Plate At Uniform Temperature, Louis G. Hunter Jr.
Design And Fabrication Of An Apparatus To Determine Heat Transfer Coefficients In An Air-Particle Mixture Over A Horizontal Flat Plate At Uniform Temperature, Louis G. Hunter Jr.
Theses and Dissertations
The study of two phase flow, where a finely divided solid is suspended in a fluid medium, has received considerable attention in the last five years due to the increased number of systems in which this phenomena occurs. The two most important areas involving the gas- particle mechanism are nuclear reactor heat exchangers and liquid and solid rockets.
Study Of Aerodynamic Forces On An Unsymmetrical Body As It Is Oscillated In A Air Stream, David Rees Tree
Study Of Aerodynamic Forces On An Unsymmetrical Body As It Is Oscillated In A Air Stream, David Rees Tree
Theses and Dissertations
The object of this work was to design and build equipment to measure the aerodynamic forces which will cause self-induced oscillations of a body having an unsymmetrical cross-section, such as a D-section. This self-induced oscillation has been called "stall flutter" or in electrical transmission lines, "galloping-transmission lines." It is hoped that this equipment will be used to gain basic Information about these aerodynamic forces.
Heat Flux Measurement By Miniature Calorimeters, Gary Rex Coffin
Heat Flux Measurement By Miniature Calorimeters, Gary Rex Coffin
Theses and Dissertations
During recent years an increasing number of technical firms and manufacturers have begun to specify heat flux, energy input per unit area per unit time, as a testing and designing criteria. This change in the boundary condition (to heat flux from temperature excess or others) evolved from the idea that each material has a characteristic burning temperature. Therefore, the rate of ablation or burning depends mainly upon the rate of energy input into the specimen, and not its temperature. Thus, the need for a flux measuring device became more acute.
The Aerodynamic Drag On Spheres Under Acceleration, Charles Earl Nielson
The Aerodynamic Drag On Spheres Under Acceleration, Charles Earl Nielson
Theses and Dissertations
The requirement of a greater understanding of the behavior of solids-gas systems has shown itself profoundly with the advancement of science and technology during recent years. The range and variety of processes in which these systems play an important role is exceptionally broad. These processes range from meteorological disturbances such as dust storms, rain and snow, to the use of vacuum cleaning equipment. With the advancement of aircraft and space technology the influence of these systems is again felt in such cases as the motion of rockets, missiles and aircraft in flight, the behavior of liquid droplets or metallic particles …
The Verification And Use Of A Hot-Wire Anemometer In Turbulence Measurements, Charles Young Warner
The Verification And Use Of A Hot-Wire Anemometer In Turbulence Measurements, Charles Young Warner
Theses and Dissertations
One very important part of research is the development of effective, reliable instruments. The measurement of turbulence in flow fields is a complex research problem. It depends heavily upon the hot-wire anemometer. This thesis describes the evaluation and use of a constant- current hot-wire anemometer, and presents the equations governing its use for turbulence measurements. The thesis first enumerates and explains some of the important parameters of turbulent flows, providing the basis for the discussion of their measurement which follows. The cooling of a heated wire in forced convection and a typical anemometer circuit are discussed. Derivations of the instrument …
Test 844: Ford 2000 Super Dexta Diesel, Nebraska Tractor Test Lab
Test 844: Ford 2000 Super Dexta Diesel, Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …
Test 842: Ford 6000 (Gasoline), Nebraska Tractor Test Lab
Test 842: Ford 6000 (Gasoline), Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …
Test 843: Ford 6000 (Diesel), Nebraska Tractor Test Lab
Test 843: Ford 6000 (Diesel), Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …
Whole-Field Methods In The Measurement Of Post-Elastic Surface Strains, Siew Poh Chan
Whole-Field Methods In The Measurement Of Post-Elastic Surface Strains, Siew Poh Chan
Mechanical Engineering ETDs
Several whole-field methods were studied and a new technique was developed for the purpose of measuring post-elastic surface strains in metals. Critical evaluation was given to the following experimental techniques: the moire effect and the birefringent coating.
Transient Response Of Linear Undamped And Lightly Damped Lumped Spring-Mass Systems By Graphica Techniques, Richard O. Brooks
Transient Response Of Linear Undamped And Lightly Damped Lumped Spring-Mass Systems By Graphica Techniques, Richard O. Brooks
Mechanical Engineering ETDs
Responsive motions of linear undamped and lightly damped lumped spring mass systems subjected to transient inputs can be determined by several methods. All these methods require solving of the differential equation in some manner. Practically all techniques for solving the differential equations involve higher mathematics.
Test 841: Oliver 1600 (Gasoline), Nebraska Tractor Test Lab
Test 841: Oliver 1600 (Gasoline), Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …
Test 840: Oliver 1600 Diesel, Nebraska Tractor Test Lab
Test 840: Oliver 1600 Diesel, Nebraska Tractor Test Lab
Nebraska Tractor Tests
No abstract provided.
Test 839: Oliver 1800, Nebraska Tractor Test Lab
Test 839: Oliver 1800, Nebraska Tractor Test Lab
Nebraska Tractor Tests
No abstract provided.
A Study Of The Vibration Characteristics Of A Thin Shell Hyperbolic Paraboloid, Farrin W. West
A Study Of The Vibration Characteristics Of A Thin Shell Hyperbolic Paraboloid, Farrin W. West
Theses and Dissertations
Recent progress in structural engineering has been marked by the increased use of thin shells as load carrying members. In particular, shells of revolution have been widely utilized in the missile industry whereas shells of arbitrary shape have been incorporated in the architectural design of today's modern buildings. Missile applications have been extensively studied both statically and dynamically. However, architechural applications have generally been limited to the statics problem with little consideration being given to the dynamic behavior of these unique structures.
Test 838: Allis-Chalmers Series Ii D15 (Lpg), Nebraska Tractor Test Lab
Test 838: Allis-Chalmers Series Ii D15 (Lpg), Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …