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A Comparison Of Lumped Parameter Models Commonly Used To Describe One-Dimensional Vibration Problems, Suresh Kumar Tolani Jan 1969

A Comparison Of Lumped Parameter Models Commonly Used To Describe One-Dimensional Vibration Problems, Suresh Kumar Tolani

Masters Theses

"Three lumped parameter model representations of the one-dimensional uniform continuous system in a vibration state are examined. The exact (continuous) solutions were used as a reference to evaluate the accuracy of the results obtained via these discrete element models. The model comparisons, carried out for both the principal modes and the systems under forced excitations, are based on the maximum strain energy. The effect of varying the number of segments in the model representation showed improvement in approximating the exact strain energy solution as the number of segments was increased. In general, the results of the model comparisons based on …

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Dynamic Response Of Circular Plates To Transient And Harmonic Transverse Loads Including The Effect Of Transverse Shear And Rotary Inertia, Perakatte Joseph George Jan 1969

Dynamic Response Of Circular Plates To Transient And Harmonic Transverse Loads Including The Effect Of Transverse Shear And Rotary Inertia, Perakatte Joseph George

Doctoral Dissertations

"Using an improved theory of plate vibration suggested by R. D. Mindlin which takes into account the effects of transverse shear and rotary inertia, free and forced transverse vibrations of uniform circular plates are studied and the results compared with those obtained using the classical theory of plate vibration. The governing equations are developed in polar coordinates using the equations of elasticity. Frequency equations for axisymmetric and antisymmetric vibrations are derived for solid circular plates under different boundary conditions and for an annular plate rigidly mounted on a shaft. The response of plates to different types of rapidly applied axisymmetric …

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Method For Optimizing Multi-Layer Insulation, William Donald Morath Jan 1969

Method For Optimizing Multi-Layer Insulation, William Donald Morath

Masters Theses

"The use of multi-layer insulation can result in reduced material cost, weight, or volume. A method for selecting layer materials is described. Each layer material is selected to operate at its upper temperature limit and to contribute to the overall performance of the wall. The analyses required for optimizing flat and cylindrical walls are developed. Use of the digital computer makes it feasable [sic] to select layer materials from a large group of candidates. Fortran IV programs for optimizing flat and cylindrical walls are presented, and their use is demonstrated by the solution of example problems. Methods for improving the …

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Analysis Of A Water Level Control, Bhupendra Girdharlal Shah Jan 1969

Analysis Of A Water Level Control, Bhupendra Girdharlal Shah

Masters Theses

"This thesis presents the analysis of a controller for a liquid level control system. The controller was built using an analog computer providing the ability to easily construct up to three modes of control. The controllers analyzed were: 1.) Proportional, 2.) Proportional plus reset, and 3.) Proportional plus reset plus preact. The system was tuned experimentally to provide satisfactory operation and root loci were also plotted to show the system stability for the three modes"--Abstract, page ii.

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Film Boiling From Inclined Flat Surfaces, Charles Ernest Price Jan 1969

Film Boiling From Inclined Flat Surfaces, Charles Ernest Price

Masters Theses

"The object of this investigation was to determine the effect of inclination on the heat transfer for saturated film pool boiling from a flat plate heater. Nitrogen at atmospheric pressure was used as the test fluid. The test plate was oriented at various angles from the horizontal position and the convective film coefficient was determined for each angle. Tests were conducted for heater angles of 0°, 30°, 60°, and 90°. The heater strip was placed in a container of the liquid and was heated electrically. Heat transfer results were obtained for plate temperatures ranging from 100 to 800°F. As the …

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Methods For Evaluating The Performance Of Small Acoustic Filters, William S. Gatley, Raymond Cohen Jan 1969

Methods For Evaluating The Performance Of Small Acoustic Filters, William S. Gatley, Raymond Cohen

Mechanical and Aerospace Engineering Faculty Research & Creative Works

Experimental methods are needed for determining the characteristics of small acoustic filters used in systems with pulsating gas flows. These characteristics could then be used to predict the performance of proposed filter designs in a particular system, according to plane wave acoustic theory. Dependence on trial-and-error experimentation in solving noise control problems would thus be minimized. A literature survey revealed only a few earlier attempts to evaluate the acoustic performance of small filters and filter elements. Three methods for determining reflection and transmission factors are described, evaluated, and compared. A method employing a standing wave tube of unique design is …

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Mutually Dependent Heat And Mass Transfer In Laminar Duct Flow, E. M. Sparrow, T. S. Chen Jan 1969

Mutually Dependent Heat And Mass Transfer In Laminar Duct Flow, E. M. Sparrow, T. S. Chen

Mechanical and Aerospace Engineering Faculty Research & Creative Works

An analysis is performed of the strongly coupled heat and mass transfer processes which result from sublimation of mass from the walls of a duct into a flowing gas, the latent heat being provided solely by convective transfer from the gas. The flow is assumed to be laminar and hydrodynamically developed. Results are given for the stream ward variations of the bulk and wall temperatures and mass fractions, of the heat and mass transfer rates, and of the local heat transfer coefficient. Representative temperature and mass fraction profiles are also presented. Entrance lengths characterizing the near approach to fully developed …

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A Computerized Method For Finding The Dynamic Response Of Multi-Mass Systems With Damping To Arbitrary Inputs, Bakulesh Balbhadra Patel Jan 1969

A Computerized Method For Finding The Dynamic Response Of Multi-Mass Systems With Damping To Arbitrary Inputs, Bakulesh Balbhadra Patel

Masters Theses

"A practical procedure for the systematic application of Foss's method to the solution of multi-degree-of-freedom damped systems is presented. It is relatively easy to determine the response of classically damped systems to various inputs. For non-classically damped systems the method proposed by K. A. Foss has been employed. This method gives an exact and complete solution for the response of linear multi-mass damped systems subjected to arbitrary inputs. Since the method requires lengthy and complex computations, the use of a digital computer is essential. In order to obtain the complete response of a multi-mass damped system to both sinusoidal and …

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Investigation Of Free Convection Heat Transfer From An Inclined Flat Plate, Phairojna Sang-Urai Jan 1969

Investigation Of Free Convection Heat Transfer From An Inclined Flat Plate, Phairojna Sang-Urai

Masters Theses

"The experimental investigation was conducted to determine temperature distribution and convective heat transfer coefficients in terms of Nusselt number for an inclined heated flat plate in air. The heated surface of the aluminum flat plate was set facing upward and moved through seven positions from the vertical to the horizontal. The investigation shows that the local Nusselt number can be predicted by Kiekus's solution within 12 per cent for inclination angles from the vertical through 75° from the vertical. In the case of the vertical position, Eckert's solution gives a better prediction. For the horizontal position the results show good …

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Test 1001: Ford 4000, 4600 And 4610 8-Speed Gasoline (Also Ford 4000 Gasoline Row Crop And Super Utility), Nebraska Tractor Test Lab Nov 1968

Test 1001: Ford 4000, 4600 And 4610 8-Speed Gasoline (Also Ford 4000 Gasoline Row Crop And Super Utility), 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 …

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Test 999: Ford 4000 Gasoline Select-O-Speed (Also Ford 4000 Gasoline Select-O-Speed Row Crop), Nebraska Tractor Test Lab Nov 1968

Test 999: Ford 4000 Gasoline Select-O-Speed (Also Ford 4000 Gasoline Select-O-Speed Row Crop), 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 …

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Test 997: Ford 5000 Gasoline Select-O-Speed (Also Ford 5000 Gasoline Select-O-Speed Row Crop), Nebraska Tractor Test Lab Nov 1968

Test 997: Ford 5000 Gasoline Select-O-Speed (Also Ford 5000 Gasoline Select-O-Speed Row Crop), 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 …

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Test 998: Ford 5000 Gasoline 8-Speed (Also Ford 5000 Gasoline 8-Speed Row Crop And Ford 6600 Gasoline 8-Speed), Nebraska Tractor Test Lab Nov 1968

Test 998: Ford 5000 Gasoline 8-Speed (Also Ford 5000 Gasoline 8-Speed Row Crop And Ford 6600 Gasoline 8-Speed), 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 …

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Test 995: Ford 4000 Diesel Select-O-Speed (Also Ford 4000 Diesel Select-O-Speed Row Crop), Nebraska Tractor Test Lab Oct 1968

Test 995: Ford 4000 Diesel Select-O-Speed (Also Ford 4000 Diesel Select-O-Speed Row Crop), 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 …

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Test 996: Ford 5000 Diesel 8-Speed (Also Ford 5000 Diesel 8-Speed Row Crop), Nebraska Tractor Test Lab Oct 1968

Test 996: Ford 5000 Diesel 8-Speed (Also Ford 5000 Diesel 8-Speed Row Crop), 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 …

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Test 1000: Ford 5000 Diesel Select-O-Speed (Also Ford 5000 Diesel Select-O-Speed Row Crop), Nebraska Tractor Test Lab Oct 1968

Test 1000: Ford 5000 Diesel Select-O-Speed (Also Ford 5000 Diesel Select-O-Speed Row Crop), 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 …

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Test 994: Ford 4000 Diesel 8-Speed (Also Ford 4000 Diesel 8-Speed Row Crop And Ford 4000 Su Diesel 8-Speed, Nebraska Tractor Test Lab Oct 1968

Test 994: Ford 4000 Diesel 8-Speed (Also Ford 4000 Diesel 8-Speed Row Crop And Ford 4000 Su Diesel 8-Speed, 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 …

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Test 992: John Deere 2520 Syncro Range, Nebraska Tractor Test Lab Oct 1968

Test 992: John Deere 2520 Syncro Range, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

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Test 993: John Deere 2520 Power Shift, Nebraska Tractor Test Lab Oct 1968

Test 993: John Deere 2520 Power Shift, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

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Test 991: John Deere 1520, Nebraska Tractor Test Lab Oct 1968

Test 991: John Deere 1520, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

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Test 986: Oliver 2150 Diesel, Nebraska Tractor Test Lab Sep 1968

Test 986: Oliver 2150 Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

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Test 987: Oliver 2050 Diesel, Nebraska Tractor Test Lab Sep 1968

Test 987: Oliver 2050 Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

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Test 985: International 444 (Gasoline), Nebraska Tractor Test Lab Sep 1968

Test 985: International 444 (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 …

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Test 984: International Farmall 544 (Gasoline), Nebraska Tractor Test Lab Sep 1968

Test 984: International Farmall 544 (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 …

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Test 983: International Farmall 544 (Diesel), Nebraska Tractor Test Lab Sep 1968

Test 983: International Farmall 544 (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 …

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Development Of A Generalized Structural Dynamics Computer Program, Val E. Simmons Aug 1968

Development Of A Generalized Structural Dynamics Computer Program, Val E. Simmons

Theses and Dissertations

The purpose of this thesis was the development of a generalized structural-dynamics computer program to calculate the response of multi-degree-of-freedom systems. The user of this computer program, having a limited background in matrix algebra and vibrational analysis, can gain numerical and graphical information concerning the dynamic response of multi-degree-of-freedom structures. The user, with a minimal amount of FORTRAN experience, will find this thesis ideally suited for his needs.

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Test 981: Ursus C-335 (Diesel), Nebraska Tractor Test Lab Jul 1968

Test 981: Ursus C-335 (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 …

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Test 982: Ursus C-350 (Diesel), Nebraska Tractor Test Lab Jul 1968

Test 982: Ursus C-350 (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 …

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Test 980: Minneapolis-Moline G900 Gasoline (Also G950 Gasoline), Nebraska Tractor Test Lab Jun 1968

Test 980: Minneapolis-Moline G900 Gasoline (Also G950 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 …

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Test 978: Minneapolis-Moline G900 Diesel (Also G950 Diesel 10-Speed), Nebraska Tractor Test Lab Jun 1968

Test 978: Minneapolis-Moline G900 Diesel (Also G950 Diesel 10-Speed), 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 …

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