Attachment 10b.1 – E001 28VDC Pwr Supply Shelter Power-FMECA.xlsx
XLSX spreadsheet 38 KB Posted
- Solicitation number
- W31P4Q-20-R-0015
About this file
This document contains a preliminary analysis for a 28VDC power supply shelter and a draft request for proposal for the Integrated Battle Command System hardware low rate initial production/full rate production segment.
The preliminary analysis evaluates failure modes for the 28VDC power supply shelter's power supply component, identifying no output, improper output, intermittent operation, improper voltage, and short failures. It determines severity classifications and computes failure probabilities with and without redundancy from emergency offsite capabilities.
The draft RFP seeks hardware production for the Integrated Battle Command System, including maintaining approved software/firmware updates, cybersecurity, authority to operate on existing hardware, and engineering changes. The requirement includes producing hardware end items per technical data packages and the critical item development specification. The solicitation number is W31P4Q-20-R-0015 and the issuing agency is the Department of the Army Materiel Command Contracting Command at Redstone Arsenal. It specifies this is a draft for comment and not a current proposal solicitation.
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Text version
Sheet2
| Row Labels | Sum of Cm | Count of Failure Mode Description |
| Improper Output | 1.03E-05 | 2 |
| Improper Voltage | 1.03E-05 | 2 |
| Intermittent Operation | 2.31E-05 | 3 |
| No Output | 1.04E-03 | 5 |
| Short | 1.08E-04 | 2 |
| Grand Total | 1.19E-03 | 14 |
Prelim Analysis
| PRELIMINARY ANALYSIS: | Major End Item: | Shelter -Power | |||
| Parent LRU: | E001 - 28 VDC Power Supply # 1 | ||||
| Component: | 28 VDC Power Supply | ||||
| Mission Phase-Operational Mode: | All Phases | ||||
| Cr = ∑Cm = | 1.19E-03 | ||||
| Failure Modes | Count of | ||||
| Failure Modes | Severity | ||||
| Classifications | Count of |
Seveverity Classification Failure Modes Sum of Cm Count of Failure Modes
| No Output | 5 | 35.71% | Category I | 5 | Improper Output | 1.03E-05 | 2 |
| Intermittent Operation | 3 | 21.43% | No Output | 4 | Improper Voltage | 1.03E-05 | 2 |
| Improper Output | 2 | 14.29% | Short | 1 | Intermittent Operation | 2.31E-05 | 3 |
| Improper Voltage | 2 | 14.29% | Category III | 9 | No Output | 1.04E-03 | 5 |
| Short | 2 | 14.29% | Improper Output | 2 | Short | 1.08E-04 | 2 |
| Grand Total | 14 | Improper Voltage | 2 | Grand Total | 1.19E-03 | 14 | |
| Intermittent Operation | 3 | ||||||
| No Output | 1 | ||||||
| Short | 1 | ||||||
| Grand Total | 14 |
Cat I and II
| Major End Item: | Shelter -Power | ||||||||||||||||||||
| Parent LRU: | E001 - 28 VDC Power Supply # 1 | ||||||||||||||||||||
| Component: | 28 VDC Power Supply | ||||||||||||||||||||
| Mission Phase-Operational Mode: | All Phases | ||||||||||||||||||||
| FPMH: | 1.916 | ||||||||||||||||||||
| t: | 72 | ||||||||||||||||||||
| Cr = ∑Cm = | 2.29E-04 | ||||||||||||||||||||
| Modified Cr = | 2.27E-05 | (Redundancy) | |||||||||||||||||||
| Due to the EOC Redundancy the Severity Classifications can be reduced Severity Classification III-1R | |||||||||||||||||||||
| Failure Effect at | Failure Detection Method | Compemsating Provisions | |||||||||||||||||||
| ID# | Function | Failure Mode Description | Failure Cause | Local Failure Effects | Next Higher Level Failure Effects | Major End Item Failure Effects | Safety | ||||||||||||||
| Consideration | Safety | ||||||||||||||||||||
| Impact | Operator Observation | Visual Indicator | C-Bit | ||||||||||||||||||
| Capabilities | Severity | ||||||||||||||||||||
| Classification | Alternate Design | ||||||||||||||||||||
| Modifications | Modified Severity | ||||||||||||||||||||
| Classification | β | βmod | α | λP | Cm | Mod Cm | |||||||||||||||
| 1 | AC Input for AC/DC Power supply which supplies 28VDC/200A service to the Shelter | No Output | Hardware Failure | Loss of Shelter DC Power Supply | Loss of DC Input Power to Shelter | Loss of Shelter | N/A | N/A | N/A | N/A | TBD | Category I | EOCs are Redundant | Category III-1R | 1.00 | 0.05 | 0.3571 | 1.92E-06 | 4.93E-05 | 2.46E-06 | |
| 2 | Provides 28VDC RTN for the AC/DC Power Supply which supplies 28VDC/200A service to the Shelter | No Output | Hardware Failure | Loss of Shelter DC Power Supply Return | Loss of DC Input Power to Shelter | Loss of Shelter | N/A | N/A | N/A | N/A | TBD | Category I | EOCs are Redundant | Category III-1R | 1.00 | 0.05 | 0.3571 | 1.92E-06 | 4.93E-05 | 2.46E-06 | |
| 3 | DC output of AC/DC Power Supply which supplies 28VDC/200A service to the Shelter | No Output | Hardware Failure | Loss of Shelter DC Power Supply | Loss of DC Input Power to Shelter | Loss of Shelter | N/A | N/A | N/A | N/A | TBD | Category I | EOCs are Redundant | Category III-1R | 1.00 | 0.05 | 0.3571 | 1.92E-06 | 4.93E-05 | 2.46E-06 | |
| 7 | DC output of AC/DC Power Supply which supplies 28VDC/200A service to the Shelter | Short | Hardware Failure | Loss of Shelter DC Power Supply | Loss of DC Input Power to Shelter | Loss of Shelter | N/A | N/A | N/A | N/A | TBD | Category I | EOCs are Redundant | Category III-1R | 1.00 | 0.05 | 0.1429 | 1.92E-06 | 1.97E-05 | 9.85E-07 | |
| 8 | DC output of AC/DC Power Supply which supplies 28VDC/200A service to the Shelter | No Output | Hardware Failure | Loss of Shelter DC Power Supply | Loss of DC Input Power to Shelter | Loss of Shelter | N/A | N/A | OB-001-01 | N/A | TBD | Category I | EOCs are Redundant | Category III-1R | 1.00 | 0.05 | 0.3571 | 1.92E-06 | 4.93E-05 | 2.46E-06 |
E001 Data
| Major End Item: | Shelter -Power | ||||||||||||||||||||
| Parent LRU: | E001 - 28 VDC Power Supply # 1 | ||||||||||||||||||||
| Component: | 28 VDC Power Supply | ||||||||||||||||||||
| Mission Phase-Operational Mode: | All Phases | ||||||||||||||||||||
| FPMH: | 10.000 | ||||||||||||||||||||
| t: | 72 | ||||||||||||||||||||
| Cr = ∑Cm = | 1.19E-03 | ||||||||||||||||||||
| Modified Cr = | 1.18E-04 | (Redundancy) | |||||||||||||||||||
| Due to the EOC Redundancy the Severity Classifications can be reduced Severity Classification III-1R | |||||||||||||||||||||
| Failure Effect at | Failure Detection Method | Compemsating Provisions | |||||||||||||||||||
| ID# | Function | Failure Mode Description | Failure Cause | Local Failure Effects | Next Higher Level Failure Effects | Major End Item Failure Effects | Safety | ||||||||||||||
| Consideration | Safety | ||||||||||||||||||||
| Impact | Operator Observation | Visual Indicator | C-Bit | ||||||||||||||||||
| Capabilities | Severity | ||||||||||||||||||||
| Classification | Alternate Design | ||||||||||||||||||||
| Modifications | Modified Severity | ||||||||||||||||||||
| Classification | β | βmod | α | λP | Cm | Mod Cm | |||||||||||||||
| 1 | AC Input for AC/DC Power supply which supplies 28VDC/200A service to the Shelter | No Output | Hardware Failure | Loss of Shelter DC Power Supply | Loss of DC Input Power to Shelter | Loss of Shelter | N/A | N/A | N/A | N/A | TBD | Category I | EOCs are Redundant | Category III-1R | 1.00 | 0.05 | 0.3571 | 1.00E-05 | 2.57E-04 | 1.29E-05 | |
| 2 | Provides 28VDC RTN for the AC/DC Power Supply which supplies 28VDC/200A service to the Shelter | No Output | Hardware Failure | Loss of Shelter DC Power Supply Return | Loss of DC Input Power to Shelter | Loss of Shelter | N/A | N/A | N/A | N/A | TBD | Category I | EOCs are Redundant | Category III-1R | 1.00 | 0.05 | 0.3571 | 1.00E-05 | 2.57E-04 | 1.29E-05 | |
| 3 | DC output of AC/DC Power Supply which supplies 28VDC/200A service to the Shelter | No Output | Hardware Failure | Loss of Shelter DC Power Supply | Loss of DC Input Power to Shelter | Loss of Shelter | N/A | N/A | N/A | N/A | TBD | Category I | EOCs are Redundant | Category III-1R | 1.00 | 0.05 | 0.3571 | 1.00E-05 | 2.57E-04 | 1.29E-05 | |
| 4 | DC output of AC/DC Power Supply which supplies 28VDC/200A service to the Shelter | Improper Output | Hardware Failure | Possible loss of Shelter DC Power Supply | Possible loss of DC Input Power to Shelter | Possible loss of Shelter | N/A | N/A | N/A | N/A | TBD | Category III | EOCs are Redundant | Category III | 0.05 | 0.05 | 0.1429 | 1.00E-05 | 5.14E-06 | 5.14E-06 | |
| 5 | DC output of AC/DC Power Supply which supplies 28VDC/200A service to the Shelter | Improper Voltage | Hardware Failure | Possible loss of Shelter DC Power Supply | Possible loss of Shelter DC Power Supply | Possible loss of Shelter DC Power Supply | N/A | N/A | N/A | N/A | TBD | Category III | EOCs are Redundant | Category III | 0.05 | 0.05 | 0.1429 | 1.00E-05 | 5.14E-06 | 5.14E-06 | |
| 6 | DC output of AC/DC Power Supply which supplies 28VDC/200A service to the Shelter | Intermittent Operation | Hardware Failure | Possible loss of Shelter DC Power Supply | Possible loss of Shelter DC Power Supply | Possible loss of Shelter DC Power Supply | N/A | N/A | N/A | N/A | TBD | Category III | EOCs are Redundant | Category III | 0.05 | 0.05 | 0.2143 | 1.00E-05 | 7.71E-06 | 7.71E-06 | |
| 7 | DC output of AC/DC Power Supply which supplies 28VDC/200A service to the Shelter | Short | Hardware Failure | Loss of Shelter DC Power Supply | Loss of DC Input Power to Shelter | Loss of Shelter | N/A | N/A | N/A | N/A | TBD | Category I | EOCs are Redundant | Category III-1R | 1.00 | 0.05 | 0.1429 | 1.00E-05 | 1.03E-04 | 5.14E-06 | |
| 8 | DC output of AC/DC Power Supply which supplies 28VDC/200A service to the Shelter | No Output | Hardware Failure | Loss of Shelter DC Power Supply | Loss of DC Input Power to Shelter | Loss of Shelter | N/A | N/A | OB-001-01 | N/A | TBD | Category I | EOCs are Redundant | Category III-1R | 1.00 | 0.05 | 0.3571 | 1.00E-05 | 2.57E-04 | 1.29E-05 | |
| 9 | DC output of AC/DC Power Supply which supplies 28VDC for Status Lines. | No Output | Hardware Failure | Loss of AC/DC Status | Loss of AC/DC Status | Possible delay in starting a mission | N/A | N/A | N/A | N/A | TBD | Category III | EOCs are Redundant | Category III | 0.05 | 0.05 | 0.3571 | 1.00E-05 | 1.29E-05 | 1.29E-05 | |
| 10 | DC output of AC/DC Power Supply which supplies 28VDC for Status Lines. | Improper Output | Hardware Failure | Possible Loss of AC/DC Status | Possible Loss of AC/DC Status | Possible delay in starting a mission | N/A | N/A | N/A | N/A | TBD | Category III | EOCs are Redundant | Category III | 0.05 | 0.05 | 0.1429 | 1.00E-05 | 5.14E-06 | 5.14E-06 | |
| 11 | DC output of AC/DC Power Supply which supplies 28VDC for Status Lines. | Improper Voltage | Hardware Failure | Probable Loss of AC/DC Status | Probable Loss of AC/DC Status | Possible delay in starting a mission | N/A | N/A | N/A | N/A | TBD | Category III | EOCs are Redundant | Category III | 0.05 | 0.05 | 0.1429 | 1.00E-05 | 5.14E-06 | 5.14E-06 | |
| 12 | DC output of AC/DC Power Supply which supplies 28VDC for Status Lines. | Intermittent Operation | Hardware Failure | Probable Loss of AC/DC Status | Probable Loss of AC/DC Status | Possible delay in starting a mission | N/A | N/A | N/A | N/A | TBD | Category III | EOCs are Redundant | Category III | 0.05 | 0.05 | 0.2143 | 1.00E-05 | 7.71E-06 | 7.71E-06 | |
| 13 | DC output of AC/DC Power Supply which supplies 28VDC for Status Lines. | Short | Hardware Failure | Loss of AC/DC Status | Loss of AC/DC Status | Possible delay in starting a mission | N/A | N/A | N/A | N/A | TBD | Category III | EOCs are Redundant | Category III | 0.05 | 0.05 | 0.1429 | 1.00E-05 | 5.14E-06 | 5.14E-06 | |
| 14 | DC output of AC/DC Power Supply which supplies 28VDC for Status Lines. | Intermittent Operation | Hardware Failure | Loss of AC/DC Status | Loss of AC/DC Status | Possible delay in starting a mission | N/A | N/A | N/A | N/A | TBD | Category III | EOCs are Redundant | Category III | 0.05 | 0.05 | 0.2143 | 1.00E-05 | 7.71E-06 | 7.71E-06 |
File details come from the government source that posted it. Updated .