Design of a low-cost automated LANDSAT data analysis system
There are no author-identified signficant results in this report.
Spann, G. W.↗
SEARCH · Engineering Papers
Results for “Systems analysis”
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.
Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.
Power Extension Package (PEP) system definition extension, orbital service module systems analysis study. Volume 4: PEP functional specification
The functional, performance, design, and test requirements for the Orbiter power extension package and its associated ground support equipment are defined. Both government and nongovernment standards and specifications are cited for the following subsystems: electrical power, structural/mechanical, avionics, and thermal control. Quality control assurance provisions and preparation for delivery are also discussed.
Source record↗
Power Extension Package (PEP) system definition extension, orbital service module systems analysis study. Volume 6: PEP product assurance
Safety, reliability and quality assurance design analysis results are presented as well as design requirements recommended for implementation in the PEP design.
Source record↗
Power Extension Package (PEP) system definition extension, orbital service module systems analysis study. Volume 10: PEP project plan
Contents: project plan summary; project and mission objectives; related studies and technology support activities; technical summary; management; procurement approach; project definition items and schedule; resources; management review; controlled items; and safety, reliability, and quality assurance.
Source record↗
Power Extension Package (PEP) system definition extension, orbital service module systems analysis study. Volume 11: PEP, cost, schedules, and work breakdown structure dictionary
Cost scheduling and funding data are presented for the reference design of the power extension package. Major schedule milestones are correlated with current Spacelab flight dates. Funding distributions provide for minimum expenditure during the first year of the project.
Source record↗
Space station systems analysis study, part 3. Volume 2: Supporting research and technology
Explore the source record for details and available documents.
Source record↗
SPAR structural analysis system reference manual, system level 13A. Volume 4: Program reference
Explore the source record for details and available documents.
Jones, C. E.↗
Manned geosynchronous mission requirements and systems analysis study. Volume 1: Executive summary
The crew capsule of the MOTV was studied with emphasis on crew accommodations, crew capsule functional requirements, subsystem interface definition between crew module and propulsion module, and man rating requirements. Competing mission modes were studied covering a wide range of propulsion concepts. These included one stage, one and one half stage, and two stage concepts using either the standard STS or an augmented STS. Several deorbit concepts were considered, including all propulsive modes, direct re-entry, and aeromaneuvering skip in skip out in the upper reaches of Earth's atmosphere. A five year plan covering costs, schedules, and critical technology issues is discussed.
Boyland, R. E.↗
Space construction system analysis. Part 2: Construction analysis
The construction methods specific to the end to end construction process for building the ETVP in low Earth orbit, using the space shuttle orbiter as a construction base, are analyzed. The analyses concerned three missions required to build the basic platform. The first mission involved performing the fabrication of beams in space and assembling the beams into a basic structural framework. The second mission was to install the forward support structure and aft support structure, the forward assembly, and a TT&C antenna. The third mission plan was to complete the construction of the platform and activate it to begin operations in low Earth orbit. The integration of the activities for each mission is described along with the construction requirements and construction logic.
Roebuck, J. A.↗
Space construction system analysis. Part 2: Space construction experiments concepts
Technology areas in the orbital assembly of large space structures are addressed. The areas included structures, remotely operated assembly techniques, and control and stabilization. Various large space structure design concepts are reviewed and their construction procedures and requirements are identified.
Boddy, J. A.↗
Thermal radiation analysis system TRASYS 2. Appendix H: User's manual
The user is provided the powerful options of writing his own executive, or driver logic and choosing, among several available options, the most desirable solution techniques for the problem at hand. Sample problems are presented.
Goble, R. G.↗
Manned geosynchronous mission requirements and system analysis study extension. Manned Orbital Transfer Vehicle (MOTV) capabilities handbook and user guide
The primary change in crew capsule definition is a smaller MOTV crew capsule, switching from a 3-man capsule to a 2-man capsule. A second change permitted crew accommodations for sleeping and privacy to be combined with the flight station. The current baseline DRM, ER1, requires 2 men for 3 to 4 days to repair a multi-disciplined GOE Platform and a modest amount of mission dedicated hardware. A 2-man MOTV crew capsule to be used as a design reference point for the OTV, and its interfaces between the STS and other associated equipment or facilities are described in detail. The functional capabilities of the 2-man capsule, as well as its application to a wide range of generic missions, is also presented. The MOTV turnaround is addressed and significant requirements for both space based and ground based scenarios are summarized.
Source record↗
Concept definition and system analysis study for a solar electric propulsion stage. Volume 1: Executive summary
Explore the source record for details and available documents.
Source record↗
Advanced space system analysis software. Technical, user, and programmer guide
The LASS computer program provides a tool for interactive preliminary and conceptual design of LSS. Eight program modules were developed, including four automated model geometry generators, an associated mass properties module, an appendage synthesizer module, an rf analysis module, and an orbital transfer analysis module. The existing rigid body controls analysis module was modified to permit analysis of effects of solar pressure on orbital performance. A description of each module, user instructions, and programmer information are included.
Farrell, C. E.↗
Implementation of structural response sensitivity calculations in a large-scale finite-element analysis system
The implementation includes a generalized method for specifying element cross-sectional dimensions as design variables that can be used in analytically calculating derivatives of output quantities from static stress, vibration, and buckling analyses for both membrane and bending elements. Limited sample results for static displacements and stresses are presented to indicate the advantages of analytically calclating response derivatives compared to finite difference methods. Continuing developments to implement these procedures into an enhanced version of the system are also discussed.
Giles, G. L.↗
Satellite services system analysis study. Volume 1: Executive summary
Service requirements are considered. Topics include development of on-orbit operations scenarios, service equipment summary, crew interaction, and satellite features facilitating servicing. Service equipment concepts are considered. Topics include payload deployment, close proximity retrieval, on-orbit servicing, backup/contingency, delivery/retrieval of high energy payloads, Earth return, optional service, and advanced capabilities. Program requirements are assessed.
Source record↗
Satellite services system analysis study. Volume 2: Satellite and services user model
Satellite services needs are analyzed. Topics include methodology: a satellite user model; representative servicing scenarios; potential service needs; manned, remote, and automated involvement; and inactive satellites/debris. Satellite and services user model development is considered. Groundrules and assumptions, servicing, events, and sensitivity analysis are included. Selection of references satellites is also discussed.
Source record↗
Satellite services system analysis study. Volume 2A: Satellite and services user model, appendix
A satellite user model and update are presented. Satellite service needs are assessed. Manned, remote, and automatic involvement are also assessed.
Source record↗