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- Influence of Automatic Control of Roll Coupling and Pitch-Up on Tail Loads
- Memorandum presenting a study of the effects of automatic augmentation or controlling systems on the tail loads experienced in rolling maneuvers and in pitch-up. The results were calculated on an analog computer and the equations of five degrees of freedom were used for the rolling maneuvers and three degrees of freedom for pitch-up.
- Influence of Boric Oxide Deposition on Turbojet-Engine Operation
- Memorandum presenting a study of the effect of oxide-depositing fuels on engine starting, operation, and performance by using a modified production turbojet engine operated using a trimethyl borate azeotrope as a fuel. Results regarding boric oxide deposition, engine operation and performance, effect of turbine-inlet temperature, and dissipation of boric oxide deposits are provided.
- Influence of boric oxide deposition on turbojet-engine operation
- Report presenting testing of a modified production turbojet engine using a trimethyl borate azeotrope as a fuel. Operation with this fuel for 100 minutes produced a 2-percent deterioration in engine speed and only a 1-percent increase in combustor total-pressure loss with the best engine configuration investigated. Results regarding boric oxide deposition, engine operation and performance, effect of turbine-inlet temperature, and dissipation of boric oxide deposits are provided.
- Influence of Chemical Composition on Rupture Test Properties at 1500 Degrees Fahrenheit of Forged Chromium-Cobalt-Nickel-Iron Base Alloys
- Note presenting an investigation of the influence of systematic variations of chemical composition on rupture properties at 1500 degrees Fahrenheit for 62 modifications of a basic alloy. All of the elements in the alloy can be varied individually between quite wide limits without significantly changing the rupture properties. Results regarding carbon, nitrogen, manganese, silicon, chromium, nickel, cobalt, molybdenum, tungsten, and columbium are provided.
- Influence of Combustion-chamber Length on Afterburner Performance
- Memorandum presenting an investigation of the influence of combustion-chamber length on afterburner performance under conditions simulating altitude flight. Results regarding afterburner-inlet conditions, operational limits, and structural cooling requirements are provided.
- Influence of combustion-chamber length on afterburner performance
- Report presenting an investigation of the influence of combustion-chamber length on afterburner performance under conditions simulating altitude flight. The component design and arrangement were selected from the results of previous investigations to produce maximum thrust augmentation near the stoichiomtric condition. Results regarding afterburner-inlet conditions, operational limits, and structural cooling requirements are provided.
- Influence of Copper Ions on Adherence of Vitreous Coatings to Stainless Steel
- Note presenting an investigation of the effect of copper oxide in promoting the adherence of vitreous coatings to AISI type 321 stainless steel. It was found that the copper ions in the coating produced a significant increase in adherence on both pickled and sandblasted surfaces but that the effect of the copper decreased with increased firing temperature and increased firing time for the pickled specimens.
- Influence of crucible materials on high-temperature properties of vacuum-melted nickel-chromium-cobalt alloy
- A study of the effect of induction-vacuum-melting procedure on the high-temperature properties of a titanium-and-aluminum-hardened nickel-base alloy revealed that a major variable was the type of ceramic used as a crucible. Reactions between the melt and magnesia or zirconia crucibles apparently increased high-temperature properties by introducing small amounts of boron or zirconium into the melts. Heats melted in alumina crucibles had relatively low rupture life and ductility at 1,600 F and cracked during hot-working as a result of deriving no boron or zirconium from the crucible.
- The Influence of End Mirrors, High Density and Long Tube Length on Radial Diffusion
- Diffusion in an arc plasma across a magnetic field is investigated. The geometry is similar to that reported in ORNL-1890 but with the addition of magnetic mirrors on the ends of the arc chamber. It is shown that mirrors do not eliminate the "short circuit" effect. Comparison of the e-folding length, rₒ, of the radial ion density with and without mirrors, affords a direct measurement of ℓ/λ where ℓ is the arc length and λ the mean-free-path. In addition rₒ is independent of gas pressure with mirrors and varies as √p without mirrors. The condition for the elimination of the "short circuit" effect is discussed, as well as the case in which the "short circuit" is still present but the ions diffuse (rather than stream) to the end walls. In this case rₒ is directly proportional to the gas pressure. These effects are compared to some experimental results of Neidigh
- Influence of end plates on lift and flow field of a canard-type control surface at a Mach number of 2.00
- "The influence of triangular-shaped end plates on the lift and the flow field of a canard-type control surface mounted on a symmetrical fuselage was investigated in the Lewis 8- by 6-foot supersonic wind tunnel at a Mach number of 2.00, body angle of attack of 2 degrees, and control-surface deflection angles of 3 degrees, 6 degrees, 8 degrees, and 10 degrees. The investigation demonstrated that the addition of end plates to a canard-type control surface increased its lift and rearranged the single vortex into a two-vortex system. Perforating the end plates reduced these effects and resulted in a decrease in lift and a change in the flow-field characteristics" (p. 1).
- Influence of Exposed Area on Stress-Corrosion Cracking of 24S Aluminum Alloy
- Note presenting results of a study of the area effect in 24S aluminum alloy. The area effect refers to the phenomenon whereby small areas show long times to failure while large areas show short times. The effects of stress level, degree of sensitivity of the alloy, and hydrogen peroxide concentration in the corrosion medium were studied.
- Influence of Fluorine Substitution on the Properties of Metal Chelate Compounds
- From introduction: "This is the first of three articles dealing with the influence of fluorine substitution in the ligand on the properties of metal chelate compounds. Although the primary purpose of this project was to study the influence of fluorine substitution on the properties -- particularly light absorption -- of uranyl compounds, copper chelates were chosen for preliminary study as model substances, because they are easily prepared."
- Influence of fuselage and canard-type control surface on the flow field adjacent to a rearward fuselage station at a Mach number of 2.0: Data presentation
- Report presenting measurements of the local total pressures and flow-deflection angles in the flow field of a body and a canard-type control-surface combination at a rearward fuselage station which corresponded to a possible engine inlet location. The survey showed large total-pressure losses in the wake of the control surface and a shift in the circumferential distribution of the boundary-layer air about the fuselage due to deflection of the control surface.
- Influence of fuselage-mounted rocket boosters on flow field at inlet and on diffuser performance of strut-mounted engine at Mach numbers of 1.8 and 2.0
- Report presenting an investigation of the effect of fuselage-mounted rocket boosters on a strut-mounted engine in the 8- by 6-foot supersonic wind tunnel at Mach numbers of 1.8 and 2.0. The boosters were pairs of circular cylinders with conical forebodies mounted on the top and bottom of the fuselage, and the engine was mounted on a horizontal strut. Results regarding the characteristics of the flow field, effect of putting the boosters in several positions, and effect of angle of attack are provided.
- Influence of Gamma Irradiation on RG 8/U Cable
- Abstract: "Static measurements have been made of the currents produced by Co-60 gamma irradiation of solid dielectric RG 8/U cable. Sensitivity curves are presented as a function of the magnitude and polarity of the collection voltage to 90 volts. It is shown that the current is due to a polarity- and voltage-sensitive ionization component and to a polarity- and voltage-insensitive component attributed to the Compton process. The total cable sensitivity at -90 volts, with saturation not achieved, was (11 +/- 1) x 10-(-12) coulomb per roentgen-meter of cable, or 0.08 percent of what one would expect from ionization in an air dielectric cable of this volume."
- Influence of heat treatment on microstructure and high-temperature properties of nickel-base precipitation-hardening alloy
- Report presenting studies of the influence of various heat treatments on the rupture properties and microstructure of an alloy to provide more fundamental information on the relationships between structure and high-temperature properties in alloys of this type. Results regarding the effect of solution-treating temperatures, effect of cooling rate after solution treatment, effect of isothermal aging after solution treatment, cellular precipitation, and effect of rupture testing on structures are provided.
- Influence of Hot-Working Conditions on High-Temperature Properties of a Heat-Resistant Alloy
- Note presenting an investigation of the relationships between conditions of hot-working and properties at high temperatures and the influence of the hot-working on response to heat treatment for an alloy containing nominally 20 percent chromium, 20 percent nickel, 20 percent cobalt, 3 percent molybdenum, 2 percent tungsten, and 1 percent columbium.
- Influence of Hot-Working Conditions on High-Temperature Properties of a Heat-Resistant Alloy
- "The relationships between conditions of hot-working and properties at high temperatures and the influence of the hot-working on response to heat treatment were investigated for an alloy containing nominally 20 percent molybdenum, 2 percent tungsten, and 1 percent columbium. Commercially produced bar stock was solution-treated at 2,200 degrees F. to minimize prior-history effects and then rolled at temperatures of 2,200 degrees, 2,100 degrees, 2,000 degrees, 1,800 degrees, and 1,600 degrees F. Working was carried out at constant temperature and with incremental decreases in temperature simulating a falling temperature during hot-working" (p. 1).
- The influence of imperfect radar space stabilization on the final attack phase of an automatic interceptor system
- From Summary: "The manner in which imperfect space stabilization of the tracking radar influences the flight path stability of an automatic interceptor during the attack phase is illustrated by means of flight and analog-computer time histories. It is shown analytically that these effects may be interpreted in terms of a destabilizing airplane rate feedback which can be canceled by an additional compensatory feedback in the radar tracking loop."
- Influence of Large Amplitudes on Flexural Motions of Elastic Plates
- Note presenting a nonlinear plate theory of motion, valid for large deflections, in the light of the three-dimensional theory and other nonlinear plate theories. The nonlinear equations are solved for the case of propagation of straight-crested waves and the wave velocities are computed for various values of the parameters involved.
- Influence of Lubricant Viscosity on Operating Temperatures of 75-Millimeter-Bore Cylindrical-Roller Bearing at High Speeds
- Report presenting an experimental investigation of the effect of oil viscosity on bearing operation characteristics using a 75-millimeter-bore cylindrical-roller inner-race-riding cage-type bearing. Results regarding DN value, oil flow, viscosity, the combination of DN and oil flow, oil inlet temperature, and improvements to cooling correlation theory are provided.
- The Influence of Lubrication on the Compactability of Magnesium-Green Salt Blends for Bomb Reduction
- Lubrication of die surfaces with mineral oil or Dag 217 during final compacting of UF/sub 4/--Mg blends prevented seizing. Mineral oil application after every third press allowed 18 compacts before seizing became severe. Similar application of Dag 217 allowed 78 compacts. Mixing 0.33 wt.% Ceremul "C" with the powder allowed 40 compacts. Punch clearance had little effect on seizing. (T.R.H.)
- The Influence of Lubrication on the Compactability of Magnesium-Green Salt Blends for Bomb Reduction
- The following report follows the procedures to compact blends of uranium tetrafluoride and magnesium, describing how lubrication of the compact effects the outcome of the blends.
- Influence of Nonmartensitic Transformation Products on Mechanical Properties of Tempered Martensite
- "The influence of nonmartensitic transformations products on the mechanical properties of tempered martensite is presented for samples of a SAE 4340 steel, partially isothermally transformed to specific high-temperature transformation products and quenched and tempered to hardness values of from 25 to 40 Rockwell C. The effects of upper bainite in amounts of 1,5, 10, 20 and 50 percent, of 5 percent ferrite, and of 5 percent pearlite on the tensile, impact, and fatigue properties are evaluated" (p. 1).
- Influence of Radiation Upon Corrosion and Surface Reactions of Metals and Alloys
- A discussion of various factors in corrosion of irradiated metallic surfaces is presented. The usual mechanisms of metallic corrosion, such as direct chemi-cal reactions, direct solution (mass transfer), and electrochemical mechanisms, are considered in relation to the effects of light and x rays. In addition, corrosion of reactor materials in aqueous materials is considered. The effect of irradiation on gas -solid reactions is discussed as well as proton irradiation effects on surface reactions. Several tables and graphs are included. (J.R.D.)
- Influence of refraction on the applicability of the Zehnder-Mach interferometer to studies of cooled boundary layers
- Report presenting an analytical investigation to determine the applicability of the Zehnder-Mach interferometer to two-dimensional cooled-boundary-layer studies. The main factor governing a test section design other than flow characteristics is the estimate of how close to the wall the boundary layer need be studied.
- Influence of Rotor-Engine Torsional Oscillation on Control of Gas-Turbine Engine Geared to Helicopter Rotor
- "Equations were developed for the torsional motion of a gas-turbine engine geared to a helicopter rotor in which the rotor blades were hinged to the rotor shaft. The rotor system was simplified to yield simple third-order equations that can be used in the analysis of engine control. Comparison of the system response calculated from these equations with the experimentally observed frequency response of a rotor from a 2500-pound helicopter showed satisfactory agreement" (p. 1).
- Influence of Shear Deformation of the Cross Section on Torsional Frequencies of Box Beams
- "An exact analysis has been carried out on the torsional vibrations of a four-flange box beam with cross sections which can change shape because the stiffness of the bulkheads is finite. The effect of shear deformation of the cross section on the torsional frequencies is illustrated by numerical calculations. An approximate method for quickly estimating the effects of bulkhead shear stiffness on the torsional frequencies of box beams has been devised" (p. 1).
- Influence of Shield Configuration on Cargo Capacity of Nuclear Powered Ships
- From introduction: The purpose of this report is to make a comparison of cargo carrying capacity and approximate gross revenue of nuclear powered ships.
- Influence of Solid-Body Rotation on Screen-Produced Turbulence
- Note presenting an investigation of the influence of solid-body rotation on a screen-produced turbulence in a flow between concentric, rotating cylinders. Radial distributions of the three components of turbulence intensity and the three turbulent shear stresses were measured at a fixed distance downstream of the screen both with and without rotation.
- Influence of Static Longitudinal Stability on the Behavior of Airplanes in Gusts
- The equations of motion for an airplane penetrating a gust are derived using a few simplifying assumptions. Calculations of loads for different static longitudinal stability on two German airplane models, HC 45 and HS 122, are compared with flight tests. Good agreement is obtained between the trend of the flight tests and the calculated values; however no absolute comparison was possible between the flight tests and calculations.
- Influence of structure on properties of sintered chromium carbide
- Report presenting an investigation to study the influence of structural variations on the properties of chromium carbide sintered under pressure. The results show that the room-temperature strength and hardness are influenced by the stages of sintering, which are defined by grain size and by the number, size, location, and shape of pores.
- INFLUENCE OF SURFACE ACTIVE AGENTS ON ThO$sub 2$ SLURRIES
- An analysis, based on electrical double-layer concepts, of the influence of surface active agents on ThO/sub 2/ slurry properties indicates that under reactor conditions the use of additives to obtain certain slurry properties such as low yield stress will not be effective. Corrosion ions, fission ions, and ions resulting from radiation will compress the electrical double layer on the particle surface and reduce its dispersing effect. Elevated temperatures will also work against effective double layer properties, primarily through effect on the dielectric constant. Colloidal suspensions under conditions encountered in a reactor are unstable and accordingly stable slurry properties dependent on the surface condition are unlikely to exist. Similar arguments suggest that ceramic or other surface coatings on ThO/sub 2/ particles probably would not strongly influence slurry properties in a reactor. Evidence, ss yet inconclusive, suggests that electrolyte additives, which prevent cake formation in slurries where it otherwise would be expected, act through influence on the rate and nature of primary particle degradation. (auth)
- The Influence of Surface Injection on Heat-Transfer and Skin Friction Associated With the High-Speed Turbulent Boundary Layer
- Memorandum presenting a correlation of analyses of the effect of distributed surface injection on the heat transfer and skin friction associated with the turbulent boundary layer at high speeds to eliminate the effects of Mach and Reynolds number. Data for heat transfer and skin friction at three Mach numbers are compared with the analyses and the agreement is good.
- Influence of Temperature on Creep, Stress-Rupture and Static Properties of Melamine-Resin and Silicone-Resin Glass-Fabric Laminates
- Note presenting results of the following tests of melamine-resin glass-fabric laminates and silicone-resin glass-fabric laminates at temperatures up to 400 and 600 degrees Fahrenheit: static-tension, static-compression, tension-creep, and time-to-fracture tests. The mechanical properties of both laminates weakened with increase in temperature, as a rule.
- Influence of Tensile Strength and Ductility on Strengths of Rotating Disks in Presence of Material and Fabrication Defects of Several Types
- Report presenting an investigation of the significance of tensile strength and ductility in the presence of defects and the strength-reducing effects of several types of defect were investigated for some rotating disks. Some of the defects investigated included laminar-type irregularities, eutectic melting, and shrink porosity.
- The Influence of the Control-Surface-Servo Natural Frequency Upon the Transient Characteristics of a Flight-Path-Angle Control System Incorporating a Supersonic Missile
- Report presenting a theoretical investigation to determine the effects of control-surface-servo natural frequency on the transient characteristics of a flight-path-angle control system for three values of airframe static margin and five flight conditions. Results regarding response time, attitude accuracy, total volume of oil flow, peak rate of oil flow, and maximum normal acceleration for the missiles tested are provided.
- The Influence of the Molecular Mean Free Path on the Performance of Hydrodynamic Gas Lubricated Bearings. Interim Report
- A modified Reynolds equation is derived for gaslubricated hydrodynamic bearings operating under ''slip flow'' conditions. Closed analytical solutions are given for a Rayleigh-type step-bearing and an inclined plane slider bearing for the case of two-dimensional flow. The influence of the molecular mean free path on the performance of bearings of arbitrary form is obtained by means of a small parameter, perturbation technique. (auth)
- Influence of tube-entrance configuration on average heat-transfer coefficients and friction factors for air flowing in an Inconel tube
- A heat-transfer investigation was conducted with air flowing through an electrically heated Inconel tube having either a long-approach or a right-angle-edge entrance, an inside diameter of 0.402 inch, and a length of 24 inches over a range of Reynolds numbers up to 375,000 and average inside-tube-wall temperatures up to 2000 degrees R. Good correlation of heat-transfer data was obtained for both entrances, which substantiates work previously reported. A fair correlation of friction data was obtained for both entrances. The entrance configuration had little effect on the average heat-transfer and friction coefficients.
- Influence of Turbulence on Transfer of Heat From Cylinders
- Note presenting an investigation of the problem of the influence of free-stream turbulence on the transfer of heat from a cylinder in forced convection at very low Mach numbers but at large Reynolds numbers. An attempt is made to determine whether the sole influence of turbulence is to shift the point of laminar separation in subcritical flow, or the point of transition in supercritical flow, and thus effect a change in the rate of heat transfer.
- The influence of vortex generators on the performance of a short 1.9:1 straight-wall annular diffuser with a whirling inlet flow
- Report presenting an investigation in a duct system with fully developed pipe flow to determine the effects of vortex generators on the performance of a diffuser with whirling inlet flow. Testing was made with three different inlet whirl angles and rectangular, noncambered airfoils that varied in chord, span, angle setting, number, and location. Results for the 20.6 degree inlet whirl angle, 15.2 degree inlet whirl angle, 0 degree inlet whirl angle, and effect of inlet whirl angle on diffuser performance are provided.
- The Influence of Wheel Spin-Up on Landing-Gear Impact
- Note presenting an investigation of the influence of the wheel drag on the performance of the landing gear. The differential equations are developed and solved by numerical integration and by an analytical method. The possibilities of an eccentric wheel and an inclined shock strut are considered.
- Influence of Wing and Fuselage on the Vertical-Tail Contribution to the Low-Speed Rolling Derivatives of Midwing Airplane Models with 45 Degree Sweptback Surfaces
- Note presenting an investigation to determine the influence of the wing and fuselage on the vertical-tail contribution to the low-speed rolling derivatives of midwing airplane models with 45 degree sweptback surfaces. Results regarding the data presentation, characteristics of some basic configurations, interference effects, and tail contributions are provided.
- Informal progress report of the explosives group. Quarterly progress report, September--November 1958
- The relatively high heats of combustion of CHN compounds containing multiple bonds has prompted an investigation of the possible use of these compounds as explosives components. Three possible systems are being considered for testing in the small scale plate push apparatus: acrylonitrile-tetranitromethane, propiolonitrile-tetranitromethane and dicyanoacetylene-tetranitromethane. Samples of propiolamide and acetylene dicarboxamide, intermediates in the synthesis of propiolonitrile and dicyanoacetylene respectively, have been prepared and their infrared spectra determined. The heats of explosion of uncased charges of bis-trinitroethylnitramine has been performed. A program to investigate some properties of high explosives at microwave frequencies is being undertaken. Heterogeneous explosives consisting of metal-loaded organic explosives were also tested. Synthesis work was performed on nitrogen-fluorine compounds, boron-hydrogen-nitrogen compounds, reaction of hexachloromelamine with chlorinetrifluoride, and nitration studies.
- Informal progress report of the explosives group - September through November 1958
- Activities of the Explosives Group of the Lawrence Radiation Laboratory for the months of September, October, and November 1958 are presented.
- INFORMATION, COMMUNICATION, AND LANGUAGE
- A lecture delivered at Sandia Corp., Albuquerque, N. Mex., June 18, 1958. A discussion of information exchange theory is presented. Semantics in communications are examined, and the use of symbols in thinking and presentaion are discussed in some detail. (J.R.D.)
- Information for Application of Gamma Absorptometers for Chemical Processes
- Fractional absorption of gamma photons from a source by uranium or plutonium in solution is measured to determine concentration of these elements.
- Information for reactor safeguard committee
- No Description Available.
- Information in support of the FPC study
- This report discusses the service life expectancy of the 105-N Reactor, Steam generation transients following a scram, and estimated number of outages.
- Information Meeting on Gas-Cooled Power Reactors, Oak Ridge National Laboratory, October 21-22, 1958
- From abstract: The design parameters for the various KE-ACF designs are outlined and a summary of the design features to be covered in detail at this symposium is presented.