42 Matching Results

Search Results

prev Results: 21 - 42 next
open access

Cooling Characteristics of the V-1650-7 Engine 2 - Effect of Coolant Conditions on Cylinder Temperatures and Heat Rejection at Several Engine Powers

Description: From Summary: "An investigation has been conducted on a V-1650-7 engine to determine the cylinder temperatures and the coolant and oil heat rejections over a range of coolant flows (50 to 200 gal/min) and oil inlet temperatures (160 to 2150 F) for two values of coolant outlet temperature (250 deg and 275 F) at each of four power conditions ranging from approximately 1100 to 2000 brake horsepower. Data were obtained for several values of block-outlet pressure at each of the two coolant outlet te… more
Date: September 24, 1947
Creator: Povolny, John H.; Bogdan, Louis J. & Chelko, Louis J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

An Analysis of the Full-Floating Journal Bearing

Description: "An analysis of the operating characteristics of a full-floating bearing - a bearing in which a floating sleeve is located between the journal and bearing surfaces - is presented together with charts - from which the performance of such bearings may be predicted. Examples are presented to illustrate the use of these charts and a limited number of experiments conducted upon a glass full-floating bearing to verify some results of the analysis are reported. The floating sleeve can operate over a w… more
Date: January 28, 1947
Creator: Shaw, M. C. & Nussdorfer, T. J., Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Experimental Investigation of a Model of a Two-Stage Turboblower

Description: "In the present paper an investigation is made of two stages of a multistage turboblower having a vaneless diffuser behind the impeller and guide vanes at the inlet to the nest stage. The method employed was that of investigating the performance of the successive elements of the blower (the impeller, vaneless diffuser, ets.) whereby the kinematics of the flow through the blower could be followed and the pressure at the different points computed. The character of the flow and the physical signif… more
Date: April 1943
Creator: Dovjik, S. & Polikovsky, W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Coupling of Flexural Propeller Vibrations with the Torsional Crankshaft Vibrations

Description: The exact mathematical treatment of the problem is possible by replacing the propeller blade by a homogeneous prismatic rod. Conclusions can them be drawn as to the behavior of an actual propeller, since tests on propeller blades have indicated a qualitative agreement with the homogeneous rod. The natural frequencies are determined and the stressing of the systems under the various vibration modes are discussed.
Date: December 1943
Creator: Meyer, J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Determination of the Stress Concentration Factor of a Stepped Shaft Stressed in Torsion by Means of Precision Strain Gages

Description: The stress distribution in stepped shafts stressed in torsion is determined by means of the electric precision strain gage the stress concentration factor is ascertained from the measurements. It is shown that the test values always are slightly lower than the values resulting from an approximate formula.
Date: September 1947
Creator: Weigand, A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Measurements on Compressor-Blade Lattices

Description: From Summary: "At the end of 1940 an investigation of a guide-vane lattice for the compressor of a TL unit [NACA comment: Turbojet] was requested. The greatest possible Mach number had to be attained. The investigation was conducted with an annular lattice subjected to axial flow. A direct-current shunt motor with a useful output of 235 horsepower at an engine speed of 1800 qm was available for driving the necessary blower."
Date: August 1948
Creator: Weinig, F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Measurement of Oil-Film Pressures in Journal Bearings under Constant and Variable Loads

Description: "In a study of journal bearings, the measurement of the oil-film strength produces some significant information. A new instrument is described by means of which the pressure of the oil film in bearings (under constant or alternating load) can be measured and recorded. With this device, the pressure distribution in the lubricating film of a bearing bushing was measured (under different operating conditions on a journal bearing) in the pulsator-bearing-testing machine" (p. 1).
Date: November 1949
Creator: Buske, A. & Rolli, W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Vibration Survey of Blades in 19XB Axial-Flow Compressor 2: Dynamic Investigation

Description: "Strain-gage measurements were taken under operating conditions from blades of various stages of the 19XB axial-flow compressor in an effort to determine the reason for failures in the seventh and tenth stages. First bending-mode vibrations were detected in the first five stages of the compressor caused by each integral multiple of rotor speed from three through ten. Lead-wire failures in the last five stages resulted in incomplete data" (p. 1).
Date: April 9, 1947
Creator: Meyer, André J., Jr. & Calvert, Howard F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Distribution of Loads on Rivets Connecting a Plate to a Beam Under Transverse Loads

Description: "This report gives theoretical discussion of the distribution of leads on rivets connecting a plate to a beam under transverse leads. Two methods of solution are given which are applicable to loads up to the limit of proportionality; in the first the rivets are treated as discrete members, and in the second they are replaced by a continuous system of jointing. A method of solution is also given which is applicable to the case when nonlinear deformations occur in the rivets and the plate, but no… more
Date: April 1947
Creator: Vogt, F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
captions transcript

[It's Not Your Father's Vo-Tech!]

Description: A video of information about the importance of vocational education and vocational education programs.
Date: August 2, 1990
Duration: 31 minutes 10 seconds
Creator: University of North Texas. Center for Media Production.
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

["Building a Better Texan"]

Description: A video of the types of vocational education programs that students can participate in.
Date: August 2, 1990
Duration: 31 minutes 11 seconds
Creator: University of North Texas. Center for Media Production.
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[Vocational Education]

Description: A video of vocational education students working in a variety of areas that include cooking, mechanical engineering, teaching, and sewing.
Date: March 8, 1990
Duration: 31 minutes 19 seconds
Creator: University of North Texas. Center for Media Production.
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
open access

Multi-Modal Surface Acoustic Wave Sensing System for Pressure and Temperature monitoring of Spent Fuel Canisters

Description: Data management plan for research material for the grant "Multi-modal Surface Acoustic Wave Sensing System for Pressure and Temperature monitoring of Spent Fuel Canisters." This project is a collaboration of ​University of North Texas, Oak Ridge National Laboratory, and National Energy Technology Laboratory to develop a multi-modal wireless passive SAW (Surface Acoustic Wave) sensor array, which are deployed on the outside surface of stainless steel canisters used for nuclear waste, to monito… more
Date: 2021-10-01/2024-09-30
Creator: Zhang, Haifeng; Ramuhalli, Pradeep; Rathod, Vivek; Devkota, Jagannath & Buric, Michael P.
Item Type: Refine your search to only Text
Partner: UNT College of Engineering
open access

Self -powered Wireless Hybrid Density/Level Sensing with Differential Pressure Sensors for Safeguarding and Monitoring of Electrochemical Processing of Nuclear Spent Fuel

Description: Data management plan for the grant "Self -powered Wireless Hybrid Density/Level Sensing with Differential Pressure Sensors for Safeguarding and Monitoring of Electrochemical Processing of Nuclear Spent Fuel."
Date: 2023-03-07/2026-03-06
Creator: Zhang, Haifeng
Item Type: Refine your search to only Text
Partner: UNT College of Engineering
open access

Collaborative Research: Supercritical Fluids and Heat Transfer - Delineation of Anomalous Region, Ultra-long Distance Gas Transport without Recompression, and Thermal Management

Description: Data management plan for the grant, "Collaborative Research: Supercritical Fluids and Heat Transfer - Delineation of Anomalous Region, Ultra-long Distance Gas Transport without Recompression, and Thermal Management."
Date: 2023-09-01/2026-08-31
Creator: Prasad, Vishwanath
Item Type: Refine your search to only Text
Partner: UNT College of Engineering
open access

Tunable Plasmonic Multispectral Meta surfaces

Description: Data management plan for the grant, "Tunable Plasmonic Multispectral Meta surfaces." This project investigates the fundamental light-matter interactions and light emission tunability of 2D materials augmented by plasmonic gratings. A key application of our fundamental research is the development of the next generation of optical transistor that use photons to transmit signals containing digital information.
Date: 2023-06-01/2027-05-31
Creator: Zhang, Richard Z.
Item Type: Refine your search to only Text
Partner: UNT College of Engineering
Back to Top of Screen