WorldCat Identities

TRW SPACE TECHNOLOGY LABS LOS ANGELES CALIF

Overview
Works: 285 works in 306 publications in 1 language and 309 library holdings
Classifications: QC718,
Publication Timeline
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Most widely held works by TRW SPACE TECHNOLOGY LABS LOS ANGELES CALIF
PRESSURE VESSEL DESIGN CRITERIA( Book )

3 editions published between 1958 and 1959 in English and held by 3 WorldCat member libraries worldwide

The purpose of the work being performed in this program was to provide experimental data to assist in establishing material selection and design and fabrication criteria for reliable, highly efficient pressure vessels. Preliminary values of ductility of 4340 steel were obtained from fracture strain measurements of narrowbend and wide-bend specimens, and reductions of useful strength of offset tensile specimens were measured at several nominal strengths. Correlation of the reduction of wide bend fracture strains with the reduction of useful strength of offset tensile specimens at increasing nominal uniaxial strength levels was indicated. The 4340 steel under consideration exhibited higher ductility, both in the uniaxial and biaxial stress states, than had been anticipated from previous tests. (Author)
CONTROL SYSTEMS STUDIES( Book )

3 editions published between 1959 and 1961 in English and held by 3 WorldCat member libraries worldwide

The report is divided into three sections, covering the achievements of the following divisions of study and effort: advanced circuit studies, missile attitude sensors studies, and power servos studies. In the field of advanced circuit studies, packaging evaluation and redesign were under taken as a continuation to a-c servo channel development, a single-ended switching type power demodulator was developed and indicated satisfactory performance in laboratory evaluation, effort was continued on the design of a d-c servo amplifier, magnetic amplifier circuitry investigations were furthered, preliminary designs were made for modularized three-phase static inverters and a four-ounce static inverter was designed, and four configurations of converter-regulators were completed. In the field of missile attitude sensors, work was performed to support the present weapon systems, new gyros were evaluated, and test equipment was built and purchased for advanced weapon system analysis and proposal evaluation. Power servos studies made progress in establishing laboratory facilities and devising testing techniques; a major portion of the test equipment listed in Project Plan 165-35 was purchased or ordered, and certain work was begun on evaluation and improvement of power servos. (Author)
Vibrational characteristics of solid propellant rocket engines( Book )

2 editions published between 1958 and 1959 in English and held by 2 WorldCat member libraries worldwide

An experimental program is described in which the bending and longitudinal dynamics of structures simulating solid-propellant rocket motors are being studied. The structure is considered to be a cylindrical grain of solid propellant to which is bonded a thin steel case. Vibrations of the empty steel cylinder suspended in a free-free condition are studied first. Secondly, a similar steel cylinder loaded with an inert propellant grain will be studied to determine the effect of the propellant on the vibrations of the case. Additional experiments to determine the viscoelastic properties of the propellant required for an analysis of the structure are discussed. (Author)
A guide for evaluating precision gyros for ballistic missile type applications( Book )

2 editions published in 1960 in English and held by 2 WorldCat member libraries worldwide

Production testing procedures are recommended for evaluation of precision gyros used to stabilize inertial platforms in a ballistic missile environment. It is recommended that tumbling tests be used for measurement of the drift coefficients (g-insensitive, g-sensitive, and g2sensitive drifts); that the long-term stability of the drift coefficients be measured on sample gyros selected from the production line and on gyros recycled from systems in the field; and that by means of three cogging tests, the shortterm repeatability of the drift coefficients be measured. 'Short-term' is defined for the purpose of this study as a period comparable to missile flight time. This study does not recommend usage of the 24-hour servo tests for applications of the ballistic missile type. (Author)
DIGITAL COMPUTER SYSTEMS STUDIES( Book )

2 editions published between 1960 and 1961 in English and held by 2 WorldCat member libraries worldwide

The report is divided into four sections detailing the following study areas: (1) Storage Media, (2) Input-Output Circuits, (3) Circuit Building Blocks, and (4) Packaging. Work continued on delay lines, magnetic drums, core rope and core stack memories. Various breadboards and other models were built and tested. Specific error sources in the stairstep ramp generator were analyzed, and the feasibility of operating a Shannon Rack Decoder at 250 kc was investigated. Packaging methods and techniques were refined, especially with respect to the circuit modules and their interconnection. (Author)
COMPONENTS PACKAGING TECHNIQUES( Book )

2 editions published between 1959 and 1961 in English and held by 2 WorldCat member libraries worldwide

This report summarizes and evaluates the present status of studies on electronic components packaging techniques described in PROJECT PLAN 165-21. These studies were conducted in four specific areas: (1) design technique studies, (2) materials and processes investigations, (3) microminiaturization and mechanized production studies, and (4) environmental test and vibration studies. For the design technique studies, the test vehicle selected consists of advanced gyro and digital programming circuits which are being packaged using both conventional printed circuit and advanced techniques. In the materials and processes investigations, the limitations of foam encapsulation caused by thermal effects have been analyzed. Investigation was started of capacitance discharge techniques for welding electronic part leads into circuits. The state of the art of microminiaturization has been reviewed in a survey of work in progress at numerous organizations in the electronics industry. Sinusoidal vibration testing, commonly employed in military qualification tests, has been compared in the laboratory with random vibration; equivalence data resulting from these tests are reported. The low-pressure electrical discharge study has been completed. (Author)
Combustion of explosives( Book )

1 edition published in 1959 in English and held by 2 WorldCat member libraries worldwide

DESCRIPTORS: *Explosives, *Combustion, *Physics, *Explosions, USSR, Textbooks, Ignition, Gases, Flames, Explosive gases, Detonation, Pressure, Theory, Fulminates, TNT, TETN, RDX, Tetryl, Powders, Benzenes, Nitro radicals, Organic azides. Identifiers: Gunpowder. Contents: Section 50: Basic characteristics of combustion processes of explosives; Combustion of gaseous explosive systems; and Combustion and chain ignition. Section 51: Theories of thermal and chain ignition of gases; The nonstationary theory of thermal expansion; Flammability limits; Catalytic effect of admixtures; and Steady and nonsteady chain reactions. Section 52: Combustion of gases; Theory of thermal flame propagation; and Zeldovich - Frank-Kamenetskii combustion theory. Section 53: Combustion of condensed explosive materials; and Belyaev-Zeldovich theory of combustion of condensed explosives. Section 54: Combustion of gunpowder; Effect of pressure; and Mechanism of combustion of nitrocellulose powders. Section 55: Transition from deflagration to detonation; and Mechanism of transition from deflagration to detonation in gas mixtures
EXPERIMENTAL INVESTIGATION OF SLOSHING( Book )

2 editions published between 1958 and 1959 in English and held by 2 WorldCat member libraries worldwide

Experimental techniques were developed for measuring slosh damping in a variety of tank and baffle configurations. The various methods were compared and shown to be in satisfactory agreement. The Able-Star damping investigation made use of one of the methods having the broadest application possibilities. A systematic variation of tank shape parameters is continuing in support of ballistic missile programs like ATLAS, TITAN, and THOR, and in preparation for the needs of future space explorations systems. Nonlinear damping effects were investigated. Waves sweeping across a domed tank bottom resulted in plunging flow with high but erratic damping. Waves splashing against damping rings were quickly damped, but a new slosh mode persisted with low damping. (Author)
Research on low temperature computing elements( Book )

2 editions published between 1961 and 1962 in English and held by 2 WorldCat member libraries worldwide

Research was carried out in 7 different areas. These include a solution of the London Equations for thin films, development of evaporation techniques, studies of polymer insulating films, fabrication and tests of thin film flip-flops, deposition of metal films by electron bombardment, design of a large circuit evaporator, and further development of the associative memory design. The evaporation studies led to a considerable improvement in the reproducibility of cryotrons. The polymer insulating film is now used in all superconducting devices fabricated in the program. A number of superconducting flip-flops were fabricated, the most recent of which has a reversal time of 35 nanoseconds. The considerable improvement in reproducibility of cryotrons and polymer insulation made it feasible to proceed to develop equipment for production of dense circuits of up to 1000 cryotrons on 10 sq in. of substrate. A large circuit evaporator with this capability was designed. Fabrication and tests of various high density masks suitable for producing 100 cryotrons/sq in. are currently under way. (Author)
Measurements of free molecule heat transfer in air at mach numbers from 10-18( Book )

1 edition published in 1960 in English and held by 2 WorldCat member libraries worldwide

Heat transfer measurements to fine wires in the freemolecule flow regime at Mach numbers typical of the conditions in which satellites move were made. Accommodation coefficients obtained within the accuracy of these experiments agree with those obtained at much lower Mach numbers. The heat transfer measurements taken indicate no Mach number effect. At high Reynolds numbers, where free-molecule flow is no longer obtained, agreement with previous data is reasonable down to Knudsen number equal to one, corresponding to Reynolds number of 5 or less. A further decrease in the Knudsen number concomitant with an increase in the Reynolds number yields heat transfer rates that are somewhat lower, although in essential agreement, with previously acquired data. With an appropriate calibration for the degree of rarefaction of the gas, a wire probe shows promise as a fast reacting instrument for use in gas flows of quite low density. (Author)
An analysis of the fluid mechanics of secondary injection for thrust vector control (revised)( Book )

1 edition published in 1962 in English and held by 2 WorldCat member libraries worldwide

An analysis is made of the interaction of an injected gas or liquid with a supersonic stream AND THE FORCE INDUCED ON AN ADJACENT WALL PREDICTED. The study deals only with the free stream-injectant interaction; the modifications to the flow intro uced by the boundary layer are not considered. In the case of liquids, it is shown that the momentum deficit of the injectant relative to the free stream may play a larger part in producing the side force than the volume generation by vaporization and reaction. The analytical results are compared with those obtained from experiments in a wind tunnel and in nozzles. (Author)
On the existence of lyapunov functions in the case of asymptotic stability in the large( Book )

2 editions published in 1961 in English and held by 2 WorldCat member libraries worldwide

The authors investigate stability-in-the-large of the null solution of differential equations by use of Lyapunov functions. Five theorems are advanced which state various conditions a Lyapunov function must satisfy for the null solution of the above system to be stable-in-thelarge. The discussion is enhanced by two illustrative examples. (Author)
LIQUID-GAS INTERFACE IN ZERO-G( Book )

2 editions published between 1960 and 1961 in English and held by 2 WorldCat member libraries worldwide

IN THE INVESTIGATION OF THE BEHAVIOR OF A LIQUID-GAS MIXTURE IN A ZERO-G FIELD, AN EXPERIMENT UNIT WAS INSTALLED IN AN Atlas reentry nosecone test vehicle. The experiment unit houses a movie camera, placed so as to observe and record the interaction of gas and water contained in a plastic cube during the 25-minute near-zero-g conditions present on an ICBM flight. Temperature and pressure changes are also recorded. (Author)
The superfast pinch experiment by Vernal Josephson( Book )

2 editions published in 1959 in English and held by 1 WorldCat member library worldwide

An assembly designed to accelerate deuterons to about 10kev by means of a radially converging magnetic piston has been constructed and tested. The emphasis in this report is on design features and operational problems encountered. Samples of experimental data are included to illustrate the assembly's behavior. Specifically, the assembly operates with 300kv on the condenser, the ringing frequency is 18mc, and present operation uses hydrogen gas at 50 microns. Both slow and fast pinches have been observed, the former being possibly thermal shock waves, and the latter being associated with inward motion of the plasma sheath
On one-dimensional channel flow in the presence of a magnetic field by William B Bush( Book )

2 editions published in 1959 in English and held by 1 WorldCat member library worldwide

The differential equations for the one-dimensional, varying-area channel flow of a perfect gas in the presence of a magnetic field are formulated under the restriction that the electric field be zero. The solutions are presented in analytical and graphical form. The results show that with increasing magnetic field the sonic point moves downstream from the channel's throat and that, in general, a larger exit area is needed to obtain a given supersonic flow Mach number. (Author)
Transverse pinch oscillations by Burton D Fried( Book )

2 editions published in 1960 in English and held by 1 WorldCat member library worldwide

It is shown that the oscillations or 'bouncing' of a transverse pinch are predicted by a simple model in which no trapped magnetic field is assumed
Dynamic stabilization of a plasma column by Erich S Weibel( Book )

2 editions published in 1960 in English and held by 1 WorldCat member library worldwide

A cylindrical plasma column is confined by a magnetic field whose z-component is constant while the phicomponent oscillates sinusoidally. The skin depth is assumed to be negligible so that the boundary can be considered as sharp and the interior of the plasma as field free. The plasma itself is treated as an assembly of noncolliding particles which are specularly reflected at the plasma surface. The oscillating pressure of the applied field causes the plasma surface to execute a small periodic motion independent of phi and z. All other components of the displacement decay in time. Thus, the plasma is positively stable against all deformations. For magnetostatic confinement this treatment yields the usual instabilities, but in contrast to earlier work, the growth rates are bounded as the deformation wave length approaches zero. This appears to be in better agreement with experiment. (Author)
Theory of electron driven shock waves by Richard Gildart Fowler( Book )

2 editions published in 1960 in English and held by 1 WorldCat member library worldwide

Previous calculations of the time required for ion heating in the discharge or driver section of an electrical shock tube yielded values much greater than that in which formation and acceleration of the first luminous front is observed to occur. The model of an electron driven shock presented here shows that the relation between shock velocity, V, and electron temperature, T sub e, which has been established experimentally over a wide range of parameters, remains valid even though the conventional picture of a shock driven by hot ions must be abandoned. Thermal expansion of the hot electron gas accelerates the cold ions, resulting in a shock front or moving electrostatic double layer. Assuming conditions behind the shock to be coupled to those in the discharge region through a simple rarefaction wave, it is found that MV(2)/kT sub e is a universal function of W/MV(2), where W is the effective ionization potential. This is shown to be in excellent agreement with a wide variety of experimental data. (Author)
The stability of plasmas in the presence of conducting walls by Carl Iddings( Book )

2 editions published in 1960 in English and held by 1 WorldCat member library worldwide

The report analyzes two situations where conducting surfaces are present. In the first, a plasma, bounded between two perfectly conducting walls, is supported against gravity by a magnetic field. The gravitational field is simply to simulate the centrifugal force on particles moving on curved lines of force or the field gradient forces, without complicating the geometry. The second situation is a wedge-shaped section of a cylindrical column of plasma, confined between perfectly conducting walls. It is assumed that there is no magnetic field inside the plasma and that there is an azimuthal field outside the plasma. Both situations turned out to have unstable solutions, although the instabilities are not so'bad' as without conductors in the sense that some of the unstable modes are eliminated
On the detection of ion oscillations in a mercury discharge by Burton D Fried( Book )

2 editions published in 1960 in English and held by 1 WorldCat member library worldwide

The possibility of using a low pressure mercury discharge to detect ion plasma oscillations was examined. It was found that 1) collisions will not interfere with the phenomenon; 2) the current which maintains the discharge will cause the waves to grow (through the two-stream instability) in a time comparable with or less than the oscillation period. Aside from complications caused by the fact that the maximum growth occurs at rather short wavelengths, detection of these waves appears quite feasible. (Author)
 
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English (39)