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TRW SYSTEMS GROUP REDONDO BEACH CA

Overview
Works: 122 works in 144 publications in 1 language and 147 library holdings
Publication Timeline
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Most widely held works by TRW SYSTEMS GROUP REDONDO BEACH CA
LSI Correlator( Book )

10 editions published between 1969 and 1972 in English and held by 10 WorldCat member libraries worldwide

The epitaxial, Schottky clamped cermet film, multi-level metal (64 BC II) correlator and the triple diffused resistor, single level metal (64 BC III) correlator both meet the specifications. The 64 BC III has exhibited superior yields and is therefore the best candidate for further fabrication. For applications involving data rates of 20-30 MHz or lower, the triple diffusion technology would offer the highest yield and probably the best choice. For data rates above 20-30 MHz the epitaxial technology is the best choice. (The maximum data rate of the triple diffused structure may increase in time; however, it is presently viewed that the epitaxial structure will continue to offer a higher data rate capability due to the relative device performance.)
Fireball Entrainment Study( Book )

3 editions published between 1972 and 1973 in English and held by 3 WorldCat member libraries worldwide

An experimental program to study the development and entrainment processes of fireballs is described. The high pressure test facility and diagnostic equipment developed for this subscale laboratory study are discussed. Data acquisition, interpretation, and reduction techniques are outlined. Turbulent and laminar mean size/rise data and particle tracking photographs are compared and results reflect marked differences between these two flow regimes. Properly scaled turbulent dimensional data compare favorably with those of a low yield, low altitude nuclear event. (Modified author abstract)
Environmental research satellites for space propulsion systems experiments( Book )

3 editions published in 1966 in English and held by 3 WorldCat member libraries worldwide

This quarterly report covers the progress for the development, fabrication, test, and delivery of Environmental Research Satellites for in-space propulsion systems experiments. Two spacecraft will be built for the friction experiment and two spacecraft for the zero g heat transfer experiment. The first units of each experiment will be designated the prototypes. The flight units will be launched as subsatellites from a primary launch mission. The friction experiment is concerned with the broadening of knowledge with surface friction in the space environment. The experiment can contribute to the understanding of surface friction processes in the combined environment of space vacuum and radiation. The zero g heat transfer experiment is concerned with the influence of change of gravitational acceleration on heat transfer coefficients in the various transfer regimes and heating rates at which transitions between these regimes occur. The low g heat transfer data obtained may be applied in the design of systems involving heat transfer to volumes of fluid as typically occurs in tankage. (Author)
STL Space log( )

in English and held by 2 WorldCat member libraries worldwide

Electronic Assembly Self-Instructional Training System for the Deaf:Documentary Report by Leo E Persselin( Book )

1 edition published in 1970 in English and held by 2 WorldCat member libraries worldwide

Reported are the origins, development, and preliminary evaluation of a self-instructional training system to prepare deaf high school students for entry-level electronic assembly jobs in industry. Description of the training system focuses on the following topics: the instructional concept on which the system is based; the method of instruction (including samples from programed texts and filmstrips); the seven learning objectives (such as mechanical assembly and component installation); and administrative characteristics (such as length of the curriculum and teacher requirements). In a section on development of the training system, antecedents of the project (such as a World War ii training program) are discussed, and a chronology of project development is provided. Preliminary evaluation involving developmental testing and on-site tryout of prototype materials with approximately 85 hearing impaired students is said to have yielded findings that the program results in achievement of the specified learning objectives, allows for adaptation to individual differences, stimulates peer-tutor relationships, can be highly motivating, requires full-time administration by teachers, and is based on a valid instructional model. (Ls)
Solar Heating and Cooling of Buildings (Phase O). Volume 1:Executive Summary by Redondo Beach, Ca Trw Systems Group( Book )

1 edition published in 1974 in English and held by 2 WorldCat member libraries worldwide

The purpose of this study was to establish the technical and economic feasibility of using solar energy for the heating and cooling of buildings. Five selected building types in 14 selected cities were used to determine loads for space heating, space cooling and dehumidification, and domestic service hot water heating. Relying on existing and proven solar and conventional climatic control hardware, three references designs were selected for detailed cost evaluation in each of the 14 cities and five building types. Mathematical models were constructed of the reference systems. A computer simulation of the reference systems with specified inputs to the program determined the overall system performance. A series of computer programs determined system cost and percent solar utilization for each of the reference systems. The market penetration analysis was integrated into the cost programs. The social impact of solar energy was assessed by a random telephone survey in three cities. Environmental and economic impact forecasts are calculated. Three proof-of-concept experiments were recommended. Phase 1 and 2 development plans were prepared, and a utilization plan for implementation and commercialization of solar energy systems was prepared. (Author/MLF)
Feasibility demonstration of a rocket engine ablation gauge( Book )

3 editions published between 1966 and 1967 in English and held by 2 WorldCat member libraries worldwide

The program objective is to demonstrate the feasibility of dynamically measuring ablation and erosion of rocket nozzle liner materials and includes analytical studies to establish design parameters, laboratory experiments to evaluate test variables, and five rocket engine tests of the measurement technique. During the Task I phase, the following major efforts were completed: (1) Radiochemicals were selected to be used as trace additives in 'needles' used to measure erosion and ablation of rocket liner materials. The additives were 95ZrO2 or 46Sc2O3 as the erosion radiochemicals and 203HgCl2 or 113SnCl2 as the ablation radiochemicals. (2) A system analysis was performed to provide guidance in the system design and source selection. Relationships were derived to determine measurement sensitivity as a function of source gamma energy and needle length. The analysis showed that a source strength of 0.4 to 1.0 millicurie is required for each additive in the needle to provide a 1% count rate accuracy. Adjacent sources were found to contribute less than 1% of the detected count rate and therefore will not cause significant interference. (3) Necessary hardware and fixtures were designed to mount six radiation detectors at the periphery of a 5K engine nozzle. Two detectors can be positioned as close together as 2-7/8 inches (detector centerline measurement), while axial locations can be varied from 1/2 inch upstream from the nozzle throat to the exit of the nozzle. (Author)
Hydrogen Fluoride Laser Technology Study (CCN)( Book )

2 editions published in 1972 in English and held by 2 WorldCat member libraries worldwide

This report presents an in-depth discussion of performance and diagnostic testing of the TRW versions of all-chemical, combustion driven hydrogen-fluorine lasers. Emphasis is placed on engineering principles of combustor/injector operation and design; performance testing; spectroscopic measurements and infrared mapping of excited and ground-state molecular concentrations in the laser cavity flow field; and fluid mechanical observations of the flow field. The exceptionally high quality of the data has permitted several distinct and significant conclusions concerning the nature of the flow field and has indicated the direction for future chemical laser research. A sufficiently in-depth discussion is presented which may serve as a point of departure for future chemical laser technology efforts
A new mixing length theory for turbulent flows in dynamic equilibrium( Book )

1 edition published in 1967 in English and held by 1 WorldCat member library worldwide

A self-contained mixing length theory for turbulent flows in dynamic equilibrium is arrived at. The theory predicts a priori the existence of the laminar sublayer and, when account of viscous dissipation effects near the wall is taken, agrees well with detailed experimental data for both mean and fluctuating quantities without the need for ad hoc fitting constants. The theory leads to the result that the wall friction coefficient may be made independent of Reynolds number of employing the proper normalizing velocity and, using this information, the calculation of wall friction or of pressure drop for a given mean flow velocity is possible. (Author)
Advanced Phased Array Chemical High Energy (APACHE) Laser Program Volume 1( Book )

2 editions published in 1990 in English and held by 1 WorldCat member library worldwide

Volume I of the final report for the Advanced Phased Array Chemical High Energy (APACHE) laser program presents phase conjugate laser technology which verifies and demonstrates the key technologies associated with phase conjugation of high power continuous wave chemical lasers using stimulated Brillouin scattering (SBS). These demonstrations include: SBS under long pulse conditions simulating CW operation that demonstrates the feasibility of using SBS for a high power, CW laser; near diffraction limited performance for beam combination at the HF wavelength using SBS in high pressure xenon; flowing-gas SBS cell experiments demonstrating fluid mechanics capability for using a flowing SBS medium for CW SBS applications; SBS conjugation experiments using a 19-element segmented mirror showing the ability of SBS to correct piston and tilt misalignment errors in a multielement segmented optic; and experiments to determine how feedback to the master oscillator from the SBS cell affects system performance
Research on charged particle electrostatic thrusters( Book )

2 editions published between 1966 and 1967 in English and held by 1 WorldCat member library worldwide

Progress towards the development of practical colloid thrusters for space application is described. 100 hour life tests with neutralized and unneutralized beams have been performed for thrusts in excess of 100 micropounds. Specific impulses in excess of 1000 seconds have been achieved at a cost in reduction of mass efficiency to 62%. A mass efficiency of 77% was obtained at 643 seconds specific impulse. Several newer thruster concepts and problems associated with beam diagnostics are discussed. Specific areas covered include thrust vectoring, high voltage colloid beams, propellant stability, investigation of new propellants and refinements in time of flight techniques for colloid beam analysis. The report concludes with a resume of the present status of colloid research and recommendations for the future direction of related research. (Author)
Testing of Spacecraft in Long-Term Storage( Book )

1 edition published in 1991 in English and held by 1 WorldCat member library worldwide

This paper addresses the problem of developing a storage and test policy which may be applied to equipment placed in long-term storage prior to utilization. A closed-form analytic solution is developed to aid in evaluating the characteristics of a given policy in terms of test efficiency, on time delivery, and subsequent reliable operation of the equipment in its intended application. The analysis model is described in detail; a computer program based on the model is outlined and a flow diagram of its logic included. Problems associated with estimating valid input data are treated. An example of the application of the analysis to spacecraft is presented to fully illustrate the approach. Finally, the paper closes with a discussion of some of the many situations in which such a tool could be employed in a variety of industrial, research, and sports contexts
Investigation of Drive Power Requirements in High Rate Open Chamber Weapons( Book )

1 edition published in 1968 in English and held by 1 WorldCat member library worldwide

The use of high rate-of-fire open chamber guns could be limited if power required to drive them proves excessive. An eight-barreled test fixture was designed and built to simulate the conditions of a small open chamber gun firing at rates up to 600 shots/sec. Test ammunition was developed in both percussion and electric-primed versions. Twenty-nine firing tests were made to measure sliding friction while varying rate of fire, frame material, cartridge surface coatings, and number of shots fired. (Author)
Applications of Holography to Vibrations, Transient Response, and Wave Propagation( Book )

2 editions published in 1970 in English and held by 1 WorldCat member library worldwide

Holographic Inspection and Evaluation of Propulsion Materials( Book )

1 edition published in 1972 in English and held by 1 WorldCat member library worldwide

The study of the residual stress behavior of pyrolytic graphite coated composites is reported. Both experimental and analytical studies were conducted. Means for reducing the high residual stresses were also studied. Thermal stress behavior of silicon carbide codeposited pyrolytic graphite composites is also reported. Both temperature and radial expansion measurements were made during heating in the electron beam thermal stress experiment. Significant progress was made in the NDT of pyrolytic graphite coated rocket nozzle inserts. Different types of flaws could be readily located using various loading techniques. The detection of flaws in adhesive-bonded reinforced plastics was not as easy as with the more rigid graphitic materials. (Author, modified-PL)
An Analysis of Blast Wave Laminar Boundary Layers and Particle Entrainment( Book )

1 edition published in 1971 in English and held by 1 WorldCat member library worldwide

In the first part of this report, the laminar boundary layer flowfields generated by plane, cylindrical, and spherical strong blast waves are studied. Solutions are obtained using two different methods. In the first method, the governing equations are reduced to ordinary differential equations by using a similarity transformation and a parametric integral technique. In the second method, the assumptions of quasi-steady state and local similarity are invoked. Results obtained using each method are presented. A method of solving the turbulent boundary layer equations is also outlined in detail. The second part of the report is on particle entrainment. Using a lift force generated by the boundary layer velocity gradient, the particle velocity is estimated. Sample particle trajectories in strong blast wave flowfields are illustrated, and the amount of soil erosion due to aerodynamic entrainment is assessed. (Author)
Injector/Chamber Scaling Feasibility Program. Volume II. Ablative Chamber Design and Long Duration Testing( Book )

1 edition published in 1970 in English and held by 1 WorldCat member library worldwide

Three ablative thrust chambers were designed, fabricated and test fired. Low-cost liner materials were used in three chamber designs; the material selection was based upon subscale test data. Low-cost fabrication techniques were employed throughout. Several fabrication problems with low-cost materials were delineated. Four ablative materials were evaluated in the test program
Investigation of Resin Systems for Improved Ablative Materials( )

2 editions published between 1966 and 1968 in English and held by 0 WorldCat member libraries worldwide

This interim report describes the work performed under Contract NAS3-7949 to advance the state-of-the-art of resin matrices required for improved ablative materials for use with high energy fluorine-containing liquid propellant systems during the period 10 January through 1 July 1966. This is being accomplished through experimental studies on consecutive material development tasks initiated during this period involving synthesis and property determinations, resin formulation optimization and composite processing parameter studies. In future work these tasks will be continued and the objective will be attained through synthesis scale-up and fabrication of ablative composites tasks. This program is an extension of initial studies conducted under Contract NAS3-4188. Synthesis and property determinations have been directed to preparation and evaluation of new modified polyimide resins based on new anhydride monomers, bis(5-tetrahydrophthalic anhydride) sulfone and bis(p-3, 4-dicarboxy anhydride phenoxy phenyl) sulione, which offer improved processability. Optimization of resin systems, identified in Contract NAS3-4188 as advanced resin materials is being carried out to improve physical, chemical and processing characteristics. Composite processing studies have been conducted to determine the parameters which affect the fabrication of graphite and silica reinforced polyamide-imide and modified polyimide resins. Preliminary testing of the resistance of neat resins and composites containing state-of-the-art and advanced resins in fluorine/hydrogen and FLOX/methane combustion environments shows that (1) 'stiff' polymers appear to be superior to other types of organic resins, and (2) different reinforcement are preferred in each propellant combination combustion environment- - graphite in fluorine/hydrogen and silica in FLOX/methane
Development of Autoclavable Addition-Type Polyimides( )

3 editions published between 1974 and 1976 in English and held by 0 WorldCat member libraries worldwide

Chemistry and processing modifications of the poly(Diels Alder) polyimide (PDA) resin were performed to obtain structural composites suitable for 589K (600 deg F) service. This work demonstrated that the PDA resin formulation developed under Contract NAS 3-17770 is suitable for service at 589K (600 deg F) for up to 125 hours when used in combination with Hercules HTS graphite fiber. Sandwich panels were autoclave molded using PDA/HTS skins and polyimide/glass honeycomb core. Excellent adhesion between honeycomb core and the facing skins was demonstrated. Fabrication ease was demonstrated by autoclave molding three-quarter scale YF-12 wing panels. jg
BIBLIOGRAPHY OF SOLID ROCKET COMPONENT AGING( )

1 edition published in 1966 in English and held by 0 WorldCat member libraries worldwide

This report provides a single source reference document to literature dealing with aging and surveillance studies of solid rocket motor components and surveillance techniques. The bibliography contains over 1000 references, of which about 400 pertain to the MINUTEMAN Aging Program, which received major emphasis. Selected references are provided on 23 categories of solid rocket motors in addition to MINUTEMAN. Many reports are referenced which contain extensive information on the aging of the materials and components that are commonly used in solid rocket motors. The collected references are catalogued in a logical manner, and a narration is provided as a guide to the scope and nature of the references. Analysis and assessment of the collected literature on rocket component aging will be presented in a later report, which will include an updated bibliography
 
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Audience Level
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Audience level: 0.97 (from 0.70 for Electronic ... to 1.00 for LSI Correl ...)

Languages
English (42)