Airborne range and orbit determination design study- volumes i - iv final report
Airborne Range and Orbit Determination systems design, development, assembly, testing, and analysis
SYSTEMS ANALYSIS↗
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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Electro-pneumatic actuation system Monthly progress report no. 7
First stage jet pipe and torque motor assembly testing - electro-pneumatic actuator
TORQUE MOTOR↗
Development of steady-state and dynamic performance prediction methods for turbopump self-compensating thrust balance systems
Analog and digital simulation of performance prediction for test assembly on turbine pump self-compensating thrust balance systems
Buckman, P. S.↗
Mariner Venus 67 solar panel
Design, assembly, tests, and postflight analysis of Mariner Venus 67 solar panel
Goldsmith, J. V.↗
Advanced Applications Flight Equipment (AAFE) 125mm ultraviolet spectrometer
The conceptual work is reported for the 125 mm ultraviolet spectrometer to measure atmospheric ozone as a function of height, latitude, and time. The instrument is described along with the assembly, test, and calibration.
Schroeder, R. J.↗
STARPAHC. Part 1: Final summary report
A ground-based demonstration of IMBLMS Space Technology was conducted in a remote geographical area of the U.S. The STARPAHC program, designed to improve the capability for delivering health care to the Papago Indians, is divided into three areas: (1) design and definition; (2) system assembly, test, installation, checkout, and training; and (3) operations and evaluation. The accomplishments achieved in the program are summarized emphasizing system requirements in the areas of communication, specialized medical equipment, display, and computer software. Budgetary history and future cost plans are presented and planned activities are summarized.
Riley, F. E.↗
NASA Quiet Clean General Aviation Turbofan (QCGAT) program status
The suitability of large engine technology to reduce noise, emissions, and fuel consumption of small turbine engines and develop new technology where required is determined. The design, fabrication, assembly, test, and delivery of the experimental engines to NASA are discussed.
Bresnahan, D. L.↗
Nondestructive weld test by holography
Hologram with magnification locates poorly bonded pads on solar cell arrays. Innovation is useful for testing assembly of large solar-cell arrays accurately and nondestructively.
Perry, M.↗
Application of transmission loss concept in the evaluation of an acoustic filter for liquid-borne transverse resonance modes in a duct of circular cross section
The transmission loss concept is used in the evaluation of an acoustic filter for liquid-borne transverse modes. Tests are conducted to determine the nature of filter element designs required to suppress transverse modes, to verify the presence of transverse modes in the test assembly, to define the acoustic wave incident, and to establish data recording, processing and analysis techniques providing transmission wave filter data. The first, second, and third tangential modes, and the first radial mode are found at frequencies of 2150, 3330, 4420, and 4110 Hz, respectively, and peaks of the tangential modes recede while the radial mode peak remains, demonstrating agreement with theoretical nodal patterns. The present design is found applicable to a liquid-oxygen system, and allows the easy-to-fabricate filter to fit within the available space envelope.
Iwanicki, L. R.↗
Development of high strength, high temperature ceramics
Improvement in the high-pressure turbopumps, both fuel and oxidizer, in the Space Shuttle main engine were considered. The operation of these pumps is limited by temperature restrictions of the metallic components used in these pumps. Ceramic materials that retain strength at high temperatures and appear to be promising candidates for use as turbine blades and impellers are discussed. These high strength materials are sensitive to many related processing parameters such as impurities, sintering aids, reaction aids, particle size, processing temperature, and post thermal treatment. The specific objectives of the study were to: (1) identify and define the processing parameters that affect the properties of Si3N4 ceramic materials, (2) design and assembly equipment required for processing high strength ceramics, (3) design and assemble test apparatus for evaluating the high temperature properties of Si3N4, and (4) conduct a research program of manufacturing and evaluating Si3N4 materials as applicable to rocket engine applications.
Hall, W. B.↗
Preflight and postflight processing of Spacelab missions at KSC
The Spacelab program is discussed in the context of the preparation of assembly, test, and processing facilities at the Kennedy Space Center (KSC). The management of the program within NASA is reviewed, along with flight tests of experimental packages, the first Spacelab mission, payload mission management, Spacelab processing responsibilities at the KSC, Space Shuttle processing and launch, Spacelab deintegration, OSS-1 management functions, and the OSS-1 processing flow at the KSC. The four levels of payload integration and checkout on a Spacelab are described, and testing at the four levels is briefly examined.
Neilon, J. J.↗
Definition of satellite servicing technology development missions for early space stations. Volume 2: Technical
Early space station accommodation, build-up of space station manipulator capability, on-orbit spacecraft assembly test and launch, large antenna structure deployment, service/refurbish satellite, and servicing of free-flying materials processing platform are discussed.
Source record↗
Space station needs, attributes and architectural options study commercialization working group briefing
The benefits for each of the following commercial areas was investigated: communications, remote sensing, materials processing in space, low Earth orbit (LEO) satellite assembly, testing, and servicing, and space tourism. In each case, where economic benefits are derived, the costs for accomplishing tasks with the Space Station are compared with the cost with the Space Transportation System only.
Source record↗
Pacific area data collection stations
The installation of environmental data collection systems at several remotely located sites in islands in the Pacific Ocean is summarized. The effort was designed to enhance the ability to collect hydrological information. The data collection station consists of a data acquisition system for handling data, a transmitter for uplinking information to the GOES-W geostationary satellite, and a variety of environmental sensors for data accumulation. Each system was assembled, tested, and deployed on designated islands. The concept of using microprocessors for handling data at remote sites and relaying it via a satellite link is a cost effective approach. Such systems require high reliability and proven performance in the field.
Rector, R. C.↗
Space Station needs, attributes and architectural options: Summary briefing
Computerized data sorting and analysis techniques were used with a data base accumulated in over 20 years of space station studies to evaluate candidate missions and select a final model of 88 missions. The social, cultural, scientific, technical, and commercial benefits to be accrued from each mission were identified. Requirements were determined for satellite servicing; payload placement and retrieval; refueling; repair; testing; assembly; and construction. Missions drivers determined include crew, remote manipulating system, external parts, instrumentation, extravehicular activity/manned maneuvering unit, and voice/video equipment. User interest for commercial applications were determined. Variable architecture based on a modular concept with multi-use elements is proposed.
Source record↗
Shuttle S-band high gain switched beam breadboard antennas
The final fabrication and assembly of the S-band five-element, eight-beam breadboard antennas developed for the Space Shuttle program are described. Data summary sheets from component and final assembly testing are presented.
Mullaney, J. J.↗
Automation, robotics, and inflight training for manned Mars missions
The automation, robotics, and inflight training requirements of manned Mars missions will be supported by similar capabilities developed for the space station program. Evolutionary space station onboard training facilities will allow the crewmembers to minimize the amount of training received on the ground by providing extensive onboard access to system and experiment malfunction procedures, maintenance procedures, repair procedures, and associated video sequences. Considerable on-the-job training will also be conducted for space station management, mobile remote manipulator operations, proximity operations with the Orbital Maneuvering Vehicle (and later the Orbit Transfer Vehicle), and telerobotics and mobile robots. A similar approach could be used for manned Mars mission training with significant additions such as high fidelity image generation and simulation systems such as holographic projection systems for Mars landing, ascent, and rendezvous training. In addition, a substantial increase in the use of automation and robotics for hazardous and tedious tasks would be expected for Mars mission. Mobile robots may be used to assist in the assembly, test and checkout of the Mars spacecraft, in the handling of nuclear components and hazardous chemical propellent transfer operations, in major spacecraft repair tasks which might be needed (repair of a micrometeroid penetration, for example), in the construction of a Mars base, and for routine maintenance of the base when unmanned.
Holt, Alan C.↗
Streamlining shuttle ground operations
To meet NASA Space Transportation System goals the Shuttle Processing Contractors have to reduce Space Transportation System ground processing time and ground processing costs. These objectives must be met without compromising safety of flight or safety during assembly, test, and service operations. Ground processing requirements are analyzed to determine critical serial flow paths and costly labor-intensive tasks. Processing improvements are realized by improvements in processing methodology, by application of computer-aided technology, and by modernization of KSC facilities. Ongoing improvement efforts are outlined and progress-to-date is described.
Heimbold, R. L.↗