NDLI: Independent orbiter assessment (ioa): analysis of the mechanical actuation subsystem

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Independent orbiter assessment (ioa): analysis of the mechanical actuation subsystem

Content Provider	NASA Technical Reports Server (NTRS)
Author	Bacher, J. L. Bradway, M. W. Slaughter, W. T. Montgomery, A. D.
Copyright Year	1987
Description	The results of the Independent Orbiter Assessment (IOA) of the Failure Modes and Effects Analysis (FMEA) and Critical Items List (CIL) are presented. The IOA approach features a top-down analysis of the hardware to determine failure modes, criticality, and potential critical items. To preserve independence, this analysis was accomplished without reliance upon the results contained within the NASA FMEA/CIL documentation. This report documents the independent analysis results corresponding to the Orbiter Mechanical Actuation System (MAS) hardware. Specifically, the MAS hardware consists of the following components: Air Data Probe (ADP); Elevon Seal Panel (ESP); External Tank Umbilical (ETU); Ku-Band Deploy (KBD); Payload Bay Doors (PBD); Payload Bay Radiators (PBR); Personnel Hatches (PH); Vent Door Mechanism (VDM); and Startracker Door Mechanism (SDM). The IOA analysis process utilized available MAS hardware drawings and schematics for defining hardware assemblies, components, and hardware items. Each level of hardware was evaluated and analyzed for possible failure modes and effects. Criticality was assigned based upon the severity of the effect for each failure mode.
File Size	23416183
Page Count	784
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19900001628
Archival Resource Key	ark:/13960/t2h759m7g
Language	English
Publisher Date	1987-11-30
Access Restriction	Open
Subject Keyword	Space Transportation Actuators Component Reliability Elevons Bays Structural Units Failure Modes Assessments Space Shuttle Orbiters System Failures External Tanks Spacecraft Components Vents Spacecraft Reliability Doors Hatches Aerospace Safety Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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