Engineering Commons^™

Test 910: Farmall 1206 Turbo Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Weighing Vehicles In Motion [1965], Civil Engineering Department, University Of Kentucky

Kentucky Transportation Center Research Report

An agreement between the Kentucky Department of Highways and the University of Kentucky Research Foundation dated October 1, 1964 defined the minimum objectives of the subject research project as follows:

1. A. Developing and furnishing plans for an in-stream transducer system for dynamic axle weighing with manufacturers' specifications for the components required.
2. B. Constructing and furnishing a scale having an optimum mechanical configuration and which would perform the dynamic axle-weighing function in an overall data-gathering system, as determined in A. above.

This report describes the way in which these objectives were attained by the project staff during the period October 1, …

Test 907: Nuffield 10 / 60 (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 …

Structural Performance Of Light Gage Steel Diaphragms, Larry D. Luttrell, George Winter

CCFSS Library (1939 - present)

Light gage steel roof, wall, and floor systems may be used to transfer in-plane shear forces from one part of a framed structure to another, leading to reduced loads in parts of the structure. This is particularly noticeable in buildings having rigid end walls and under lateral loading. The diaphragms transfer forces from the interior frames into the foundation through the rigid end walls, resulting in lower loads for the interior frames. The amount of force transfer is dependent upon the in-plane shear strength and is particularly sensitive to the shear stiffness of the diaphragm. The results from some 60 …

Torsional-Flexural Buckling Of Thin-Walled Open Sections, Pen J. Fang

CCFSS Library (1939 - present)

No abstract provided.

Evaluation Of Chemical Composition And Particle Size Gradation Of Evaporation-Reducing, Monolayer-Forming Materials, Vaughn E. Hansen, Gaylord V. Skogerboe

Reports

Initial field testing began shortly after the arrival of materials in August, 1964. The field experiments were designed to evaluate the effects of the long-chain alcohol C20 and particle size gradation on the effectiveness of evaporation retardants when applied by aerial techniques. The materials which were tested at Utah Lake are listed below.

Test 906: Kubota Rv (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 …

Insulation Of Concrete Bridge Decks, W. A. Mossbarger Jr.

Kentucky Transportation Center Research Report

The complete elimination of snow and ice from principal highways would dispel the last real impediment from winter-time driving. It is not possible, of course, to prevent rain and snow from falling onto the roadway nor to heat endless miles of roads in order to keep them snow-and ice-free. Applications of de-icing salts during the onset or following icy weather has become a standard practice since 1948, and the quantity of salt used for this purpose has increased steadily each successive year. At the present time, salting provides the most expediently satisfactory treatment for icing conditions. Bridges sometimes pose a …

Test 905: Nuffield 10 / 42 (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 904: Allis-Chalmers Series Ii 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 902: David Brown 880 (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 903: David Brown 990 (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 …

Effects Of Cold-Forming On Light-Gage Steel Members, Kenneth W. Karren, George Winter

CCFSS Library (1939 - present)

Cold-forming may cause significant increases in tensile and in compressive yield strength in both the corner and flat elements of light-gage cold-formed steel members. The cumulative effects may raise the yield strength to as reuch as 70% above the virgin yield strength of the as-rolled sheet steel. The yield strength of corners is always considerably higher than that of any other portion of a cold-formed member because of the large plastic deformations which take place in the corners. Thus compact members with a large ratio of corner area to cross sectional area will have the largest increases in yield strength. …

Fifth Annual Performance Survey Of Reinforced Concrete Pipe Culverts, Ronald D. Hughes

Kentucky Transportation Center Research Report

For many years, engineers have sought a simplified method for determining the strength requirements for underground conduits under various conditions of bedding and backfilling. Methods of installation and the general lack of a uniform design criteria tended to restrict the usefulness of rigid pipe culverts. With the advent of the interstate construction program and the increased mileage of highways meeting high design standards, the number of pipe culverts installed under high fills was significantly increased. This, of course, accented even more so the need for a more straightforward criteria for design and installation of rigid pipe in order that maximum …

Graphical Solutions To Frequently Encountered Fluid Flow Problems, Roland W. Jeppson

Reports

Introduction

Graphical methods are often used by engineers to solve frequently used or complex formulas which require trial and error solutions. Perhaps the best known graphical tool used by the engineer is the slide rule, but anyone familiar with its use will recognize its limitations both in time and accuracy. For many problems which involve many repetitive computations high speed digital or analog computers are the most effective tools for solution. There are, however, many problems requiring considerable engineering time for slide rule solutions where solutions are not justifiable on computers. The use of nomograms for such problems is desirable. …

Handbook Of Facts And Figures On Indiana County Roads—Including Directory Of Indiana County Highway Departments, Jean E. Hittle

Indiana Local Technical Assistance Program (LTAP) Publications

This handbook will assist county road officials in the planning of county road operations. The data and information included in this handbook are either statistical or public information which are already available from the official sources, but which needed to be brought together for convenient distribution and use.

Test 901: Massey-Ferguson Mf 150 (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 …

Laboratory Test Results On Concrete Mixtures Containing Water-Reducing, Set-Retarding Admixtures, James H. Havens

Kentucky Transportation Center Research Report

This Special Provision covers the requirements for materials and construction procedures for water-reducing, set-retarding admixtures to be used in the construction of concrete bridge superstructures.

Freeze-Thaw Characteristics Of Aggregates, George R. Laughlin

Kentucky Transportation Center Research Report

Premature deterioration of concrete under freezing and thawing conditions is often attributable to the aggregate fraction. Past research has shown that the freeze-thaw characteristics of aggregate are related, in a general way, to such properties as: 1) porosity, 2) absorption, and 3) bulk specific gravity. Actually it is the pore system--that is, the size, shape, arrangement and continuity of the pores--that governs the freeze-thaw characteristics. Distress in aggregate particles arises from hydrostatic pressure induced when a portion of its absorbed pore-water is frozen. The degree of distress or damage manifested is dependent upon the amount of permeable porosity, the degree …

Accelerometer Method Of Riding-Quality Testing, Rolands L. Rizenbergs

Kentucky Transportation Center Research Report

At a meeting of Highway Research Board Committee D-B4 last January, R. L. Rizenbergs presented an oral description of our development of the accelerometer method of measuring road roughness; and representatives from several state highway departments expressed an interest in duplicating our instrumentation. It became incumbent upon us then to prepare a more formal description for distribution to the Committee and other interested parties. The report submitted herewith is intended to fulfill that purpose. No specific action is requested. Copies are furnished for information only.

Construction And Interim Performance Of Silica Sand-Asphalt Surfacing, Robert L. Florence

Kentucky Transportation Center Research Report

The report submitted herewith emanates from continuing efforts to develop sand-asphalt surfacing to a high degree of perfection and as a possible alternative to Class I, Type A, bituminous concrete surfaces. This type of surface excels in skid-resistance and may evolve as a preferred method of surface renewal and de-slicking for worn pavements which are otherwise structurally substantial. This report is concerned principally with observations afforded by the aforenamed, State construction project; it is, in that sense, an interim report.

Hot Isostatic Compaction Of Graphite, Donald C. Carmichael, P. D. Ownby, Edwin S. Hodge

Materials Science and Engineering Faculty Research & Creative Works

The effects of temperature, pressure, and graphite starting material on the density, isotropy, and strength of dense graphite material prepared by hot isostatic compaction of graphite powders were examined. Process equipment was developed to permit operation at temperatures up to 2700 C under a 1600-atom isostatic pressure of inert gas . The isotropy of graphite compacts was determined by neutron diffraction. Relatively isotropic, high-purity graphites were produced having modest isotropic tensile strength and extremely high density (up to 2.24 g per cm³, or 99 per cent of theoretical).

Water Vapor Measurements Using Infrared Absorption, Duard S. Woffinden

Reports

Man’s attempt to control the amount of available water has taken two approaches, i.e., weather modification and water storage through the use of man-made reservoirs. In either case, it is necessary to ascertain the water vapor content of the atmosphere. In the case of weather modification, if the water vapor content is insufficient, it is futile to attempt to start precipitation. In the case of reservoirs, it is important to know the evaporation rate since it has been demonstrated that some reservoirs provide a net negative contribution to the total water supply by increasing the normal evaporation losses. Any attempt …

Submerged Parshall Flumes Of Small Size, Gaylord V. Skogerboe, M. Leon Hyatt, J. Raymond Johnson, Joe D. England

Reports

The calibration of small Parshall flumes for measuring flows ranging in magnitude from 0.1 to 1.1 cubic feet per second (cfs) was accomplished by A. R. Robinson (1960) at Colorado State University. The purpose of Robinson’s investigation was to accurately calibrate and standardize the design of small Parshall measuring flumes. The rated flumes were constructed of galvanized sheet metal. Data was collected for Parshall flumes having throat widths of 1-, 2-, and 3- inches. Calibration tables or curves were prepared for both free and submerged flow. The dimensions of the Parshall flumes rated by Robinson are shown in Figure 1. …

Submergence In A Two-Foot Parshall Flume, Gaylord V. Skogerboe, M. Leon Hyatt, Joe D. England, J. Raymond Johnson

Reports

The primary objective in this study was to ascertain the validity of the method of analyzing submergence developed by Hyatt (1965) in a standard 2-foot Parshall flume. The method of analyzing submergence was first developed for a trapezoidal flume (Hyatt, 1965), was later verified for a rectangular flume (Skogerboe, walker and Robinson, 1965), and has been shown by the authors to be valid for small Parshall flumes (Skogerboe, Hyatt, Johnson, and England, 1965). In view of previous findings, it was felt the method would also be valid for large Parshall flumes, and for this purpose the 2-foot flume was selected. …

Proceedings Of A Summer Institute In Water Resources: Volume 3 - Water Quality Control And Management, P. H. Mcgauhey

Reports

Foreward: Recognizing the need for training of individuals to meet the rapidly rising problems connected with water resources development, Utah State University, with National Science Foundation support, organized a Summer Institute in Water Resources for college teachers. it was hoped that participants carefully selected from all regions of the country would receive additional insight and stimulation to improve and enlarge water resources training programs at their own institutions. Thus, the accelerated dissemination of such knowledge on a national scale could be facilitated. Realizing further that the key to a successful institute of this nature lay in the excellence of its …

Flow Rate Measurement Of Logan Outfall Effluents, M. Leon Hyatt, J. Raymond Johnson, Joe D. England

Reports

No abstract provided.

Design, Calibration, And Evaluation Of A Trapezoidal Measuring Flume By Model Study, M. Leon Hyatt

Reports

SCOPE AND PURPOSE OF INVESTIGATION

The discharge occurring in an open channel can be measured by placing a constriction in the channel. Flumes are commonly used as constriction in open channels. A flume is a specially designed and calibrated section built into a channel, the physical properties of which allow the calculation of the discharge. The narrowest section of the flume is usually called the throat. The velocity of flow through the throat, for any given flow rate, increases with a decrease in the flow depth. The ideal condition for measurement of discharge is a throat sufficiently constricted to produce …

Proceedings Of A Summer Institute In Water Resources: Volume Ii - The Economics Of Water Resource Development And Conservation, B. Delworth Gardner, Allen Lebaron

Reports

Foreward: Recognizing the need for training of individuals to meet the rapidly rising problems connected with water resources development, Utah State University, with National Science Foundation support, organized a Summer Institute in Water Resources for college teachers. it was hoped that participants carefully selected from all regions of the country would receive additional insight and stimulation to improve and enlarge water resources training programs at their own institutions. Thus, the accelerated dissemination of such knowledge on a national scale could be facilitated. Realizing further that the key to a successful institute of this nature lay in the excellence of its …

Estimation Of Pan Evaporation From Climatological Data, Jerald Emmet Christiansen, Ashwin D. Mehta

Reports

A new formula and coefficients for climatological factors was developed for estimating pan evaporation based on an analysis of data from 23 states in the U. S. and from five other countries. This formula may be written: Ev=K R Ct Cw Ch Cs Ce Cm in which K is a dimensionless constant R is the theoretical radiation reaching the outer atmosphere, expressed as equivalent evaporation in the same units~ , as Ev. Ct, Cw, Ch,and Cs are dimensionless sub-coefficients for temperature , wind, humidity, and sunshine. Ce is a sub-coefficient for elevation, and Cm is a monthly coefficient Equations were …