Special Coverage

Home

Multi-User Investigation Organizer

Ames Research Center, Moffett Field, California InvestigationOrganizer (IO) is a Web-based information system that integrates the generic functionality of a database, a document repository, a semantic hyper-media browser, and a rule-based inference system with specialized modeling and visualization functionality to support mishap investigations. The semantic hypermedia component includes a customizable ontology that specifies various types of items (people, places, events, causes, systems, and associated information products) relevant to mishap investigations. The ontology also describes important properties of each item type, and details the potential relationships among items.

Posted in: Briefs, Electronics & Computers

Read More >>

Unit Conversion Macro for TecPlot Solutions for CFD

Lyndon B. Johnson Space Center, Houston, Texas The invention is a TecPlot macro, which is a computer program in the TecPlot programming language that processes CFD (computational fluid dynamics) solutions in TecPlot format. The TecPlot data is in SI units (International System of Units) [same as CFD solutions]. This invention converts the SI units into U.S. customary units.

Posted in: Briefs, Electronics & Computers, Mathematical/Scientific Software

Read More >>

JWST IV&V Simulation and Test (JIST) RT Logic T501 Emulator

Emulator using only software implements the behavior of a processor. Goddard Space Flight Center, Greenbelt, Maryland In order to develop a software-only test environment for the James Webb Space Telescope (JWST) mission, a solution was needed to send commands and receive telemetry between the TCTS (Telemetry and Command Test Set) and CMM-S card. The as-is solution requires the utilization of commercial off-the-shelf hardware (RT Logic Telemetrix T501 processor) and custom CMM-S hardware.

Posted in: Articles, Briefs, TSP, Electronics & Computers

Read More >>

Improving Efficiency in Factory Wiring

Save time and money with a centralized modular wiring system using TE Connectivity’s Dynamic Series power circuit connectivity specifically designed for a rugged, industrialized applications.

Posted in: Tech Talks, Electronics & Computers

Read More >>

Enhanced Project Management Tool

The system monitors the progress of multiple activities and generates management reports at different detail levels. Ames Research Center, Moffett Field, California A complex project having many tasks and sub-tasks, many phases, and many workers will often require an evaluation of completion of the tasks and sub-tasks at several times during the project’s duration. Initially and throughout the duration, suitability of the technical and inter-personal characteristics of the workers, managers, and teams should also be evaluated. What is needed is a system that allows a user to specify a type of report, to specify one or more classes of information within this type of report, to specify a time interval, to specify one or more projects, and to receive the status and/or comparisons of performance for the specified projects.

Posted in: Articles, Briefs, TSP, Electronics & Computers

Read More >>

Advanced Navigation Strategies for Asteroid Sample Return Missions

Goddard Space Flight Center, Greenbelt, Maryland Sample-return missions to primitive solar system bodies (asteroids, comets, and planetary satellites) can provide a wealth of scientific information and insight into the composition and origins of the solar system. Recent interest in primitive body missions has been driven by the possibility of human near-Earth object missions, Earth conjunction analysis, and scientific discovery. Precision navigation to acquire a sample from a primitive solar system body and return it to Earth presents unique challenges beyond traditional Earth-based and interplanetary missions.

Posted in: Articles, Briefs, TSP, Electronics & Computers

Read More >>

Half-Cycle Crack Growth

Armstrong Flight Research Center, Edwards, California Half-Cycle Crack Growth software offers a reliable method for calculating theoretical fatigue crack growths that could lead to catastrophic structural component failures. The program builds upon and integrates Armstrong’s proven half-cycle and closed-form aging theories, and considers every half-cycle of loading spectra for specific structural components. The program works by reading test data files and determining maximum and minimum loads of each half-cycle of random loading spectra in order to calculate theoretical crack growth. The innovation is an improvement on traditional prediction software (and in particular, on visual inspections) because it considers mini-amplitude stress loading and half-cycles based on the duty cycle of a particular component or structure. Developed to calculate the number of operational life flights for B-52B pylon hooks at Armstrong testing facilities, the program and underlying theories can be applied to estimate the service life of any critical structural component, making it suitable for use in other industries, especially for construction and petrochemical firms.

Posted in: Articles, Briefs, TSP, Electronics & Computers

Read More >>