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Independent orbiter assessment (ioa): analysis of the electrical power distribution and control/remote manipulator system subsystem
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Robinson, W. W. |
| 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 Electrical Power Distribution and Control (EPD and C)/Remote Manipulator System (RMS) hardware to determine failure modes, criticality, and potential critical items. To preserve independence, this analysis was accomplished without reliance upon the results contained in the NASA FMEA/CIL documentation. This report documents the results of the independent analysis of the EPD and C/RMS (both port and starboard) hardware. The EPD and C/RMS subsystem hardware provides the electrical power and power control circuitry required to safely deploy, operate, control, and stow or guillotine and jettison two (one port and one starboard) RMSs. The EPD and C/RMS subsystem is subdivided into the four following functional divisions: Remote Manipulator Arm; Manipulator Deploy Control; Manipulator Latch Control; Manipulator Arm Shoulder Jettison; and Retention Arm Jettison. The IOA analysis process utilized available EPD and C/RMS 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 on the severity of the effect for each failure mode. |
| File Size | 14831962 |
| Page Count | 388 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19900001620 |
| Archival Resource Key | ark:/13960/t26b21k89 |
| Language | English |
| Publisher Date | 1987-02-17 |
| Access Restriction | Open |
| Subject Keyword | Space Transportation Controllers Component Reliability Latches Circuits Jettisoning Failure Modes Spacecraft Power Supplies Assessments Space Shuttle Orbiters Electric Power Transmission System Failures Spacecraft Components Spacecraft Reliability Remote Manipulator System 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 |
