Design and Integration Tools

Design and Integration Tools
Design and Integration Tools
Vehicle/Payload Modeling and Analysis, Component and Integrated System Simulation
Extended Testability Analysis (ETA) Tool V8.0
This technology disclosure is for the Enhanced Testability Analysis (ETA) Tool V8.0. The version of the ETA Tool is an upgrade of the previous reported ETA Tool (LEW-18795-1). This technology is a NASA Glenn-developed software application that supports fault management (FM) by performing testability analyses on the fault propagation model of a given system. The Extended Testability Analysis (ETA) Tool processes a diagnostic model developed from a commercial software package called TEAMS Designer using a defined set of modeling conventiuons and practices. ETA Tool can provide an assessment of the modeled system based on diagnostic metrics of detectability and failure isolation. The program can provide assessment of a system's detection coverage, test utilization, failure isolation at the root cause or at the component levels, generate a FMEA Report, perform sensor sensitivity studies and provide a trace-mapping of failure modes to higher level system effects. ETA Tool generates reports from each selected analysis option in both an HTML and XML format to enable user access in either standard web browsers or loadable into an Microsoft Excel workbook for review/editing.
U.S. Release Only
Goddard Satellite Data Simulation Unit
The Goddard Satellite Data Simulation Unit (SDSU) is a comprehensive unified system of multi-sensor satellite instrumental simulators. Skill of weather forecasting models can be evaluated in terms of satellite-observed multi-sensor radiance levels. Alternatively, the remote sensing community can more readily utilize atmospheric model simulations to develop and test their retrieval algorithms for application of Earth science.
Open Source
SCaN Optical Link Assessment Tool Version 3
A calculation procedure has been designed and implemented in software that enables the specification and design of a space-based optical communications system. The resulting optical link budget essentially accounts for the communication power flow through the entire optical communications channel from the transmitter to the receiver and yields design specifications for the optical system necessary to assure reliable data transmission with desired operational metrics such as data rate, link margin, etc. The link assessment tool takes into account all the sources of deleterious noise that enters into the communications process such as electronically generated noise in the optical detector and stray optical irradiance from external sources. The link budget has the capability of being interfaced with the orbital element calculations of the Satellite Tool Kit (STK) to allow the dynamic description and evolution of optical link operation from any space-borne satellite within the solar system to and from the earth. The current version implements PPM and DPSK modulation types that can use PIN, APD, or nanowire optical detectors in the presence of atmospheric turbulence. Coded and un-coded link power margins are provided. This version of the tool also has the ability 1) to solve for prevailing potential data rates given a desired optical power link margin and 2) treat the spatial separations of optical link transmitter and receiver within thefirst Fresnel zone.
U.S. Release Only
Low Fidelity Space Systems Analysis Tools-Fission Power Sizing Tool
The system uses lifetime, chosen archetype and EOL power demand to determine the mass and power characteristics of a fission power system.
U.S. Release Only
Low Fidelity Space Systems Analysis Tools-Orbiter Sizing Tool
This tool sizes rough orbiter buses that include avionics, science payloads (user choice) and a scientific mass fraction and produces a baseball card for presentation.
U.S. Release Only
Fully Implicit Ablation and Thermal Analysis Program, Version 3 (FIAT v3) - unrestricted version
FIAT v3 simulates one-dimensional thermal energy transport in a multilayer stack of isotropic materials and structures that can ablate from the front surface and decompose in depth. The implicit solution algorithm and general solution technique make the program very stable and robust for application to both robotic and crewed vehicles entering a planetary atmosphere from space. For input, the code reads material property information from a database file.
U.S. and Foreign Release
A Trick-based framework for writing real-time EtherCAT applications using the EC-Master driver from Acontis Technologies.
U.S. Government Purpose Release
Arnold Mirror Modeler Software
This software creates complex finite element models of large-format, lightweight mirrors for complete input decks. Before, building these models could take engineers weeks or even months to complete a single iteration. Now the modeler tool can do the same task in minutes. The software creates many levels of model complexity, from single mirrors (circular or hexagonal shapes) to arrays of mirror segments. Models can have local reinforcement surrounding attachment points, and mesh can be refined (doubled) as many times as necessary.
U.S. Government Purpose Release
Space Mission Architecture and Risk Analysys Tool (SMART)
SMART supports a high-level system trade study on a complex mission, such as a potential Mars Sample Return (MSR) mission, in an intuitive and quantitative manner. SMART offers a unique capability of handling correlated redundancies and accurately evaluate the probability of mission success as well as its sensitivity to the reliability of mission components.
Open Source
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