AMS02 tracker meeting

1
AMS02 tracker meeting

• SAFETY and Quality Assurance
• July 20, 2005

2
Summary

• Safety Phase II
• Payload Flight Hazard Report
• Hazard summary (tracker, star tracker, ttcs)
• Integration schedule

3
TIM vs Safety

• After the next TIM we will go to the
• SAFETY-Phase II
• The updated information from the next TIM will be
  used by Jacobs-Sverdrup in order to transfer in
  the closed status all the hazards.

4
Safety Phase II

• News from Jacobs-Sverdrup (Leland Hill)
• The latest schedule shows a September-October
  time frame for the phase II
• But the program management is considering a
  slight delay for the safety panel

5
Safety Control Panel

• The last revision of the Payload Flight Hazard
  Report
• May 25, 2005
• But during the last month many action has been
  taken to provide information to Jacobs.

6
Payload Flight Hazard Report (PFHR)

• As you know, generally, two kind of hazard can be
  identify
• the standard hazard (are common hazard from a
  generic payload, like structural failure or high
  voltage)
• the unique hazard (specific hazard for the
  payload, like a cryogenic pressure system.

7
Hazard Management

• Each hazard is identify by a code number
  AMS-02-Fxx where xx is the hazard assigned number
  and by an Hazard title first classification of
  the hazard
• The hazard management is done by xx main steps
• Causes to identify the causes of the hazard
• Control to identify the hazard control method
• Verification to identify the verification
  method
• The step status must be OPEN or CLOSED

8
brief Hazard Summary

• NOTE in the following slides only the hazard
  directly related to the our sub-component has
  been collected.
• In the PFHR we can find all the general hazard,
  causes control method and status.

9
Tracker

• AMS-02-F01/ Structural Failure of Hardware
• The step1 of bolts analysis has been started we
  are waiting for the results
• Status OPEN

10
Tracker

• AMS-02-F01/ Structural Failure of Hardware
• Fracture control for composites
• available a draft report already submitted to
  Jacobs
• Action _at_ TIM splinter meeting with Bruce Sommers
  for the Fracture Control for Composite
• Status OPEN

11
Tracker

• AMS-02-F01/ Structural Failure of Hardware
• Acoustic analysis in work
• Status OPEN

12
Tracker

• AMS-02-F08/ Electric Shock/Discharge
• No mate/demate connectors hazard
• Status CLOSED

13
Tracker

• AMS-02-F16/ Shatterable Material Release
• Vibration testing of Tracker sensor
• Status OPEN
• NOTE a vibration test to a single ladder has
  been performed!?

14
Tracker

• AMS-02-F20/ Crew Exposure to Coherent Light
• Tracker alignment system
• Status OPEN

15
Star Tracker

• AMS-02-F01/ Structural Failure of Hardware
• Fracture control for composites
• available the fracture classification from
  Jacobs
• available a control report already submitted to
  Jacobs
• Status OPEN
• NOTE we are waiting comments for the control
  report

16
Star Tracker

• AMS-02-F14/ Sharp edge/Corners
• Baffle subsytem the Star Tracker baffles will be
  noted as no touch zones.
• Inspection of design for sharp edges, corners,
  etc
• Status OPEN
• NOTE hazard assessment probably in the next
  safety phaseII

17
Star Tracker

• AMS-02-F16/ Shatterable Material Release
• Vibration testing of Star Tracker lenses a
  vibration test has been performed
• Status OPEN

18
Star Tracker

• AMS-02-F16/ Shatterable Material Release
• Star Tracker Lenses will be pressure decay tested
  to confirm venting performance without damage or
  release
• Status OPEN
• NOTE test has been performed and result already
  send to Jacobs.

19
Star Tracker

• AMS-02-F16/ Shatterable Material Release
• Review of Design to confirm mass of optical
  components
• Status OPEN
• NOTE optical mass list already send to Jacobs.

20
Star Tracker

• AMS-02-STD-02/ Vented Container
• Review of DesignInspection of as built hardware
• Status OPEN
• NOTE report on venting system already send to
  Jacobs.

21
Star Tracker

• AMS-02-STD-02/ Vented Container
• Review of Design Inspection of as built hardware
• Status OPEN
• NOTE report on venting system already send to
  Jacobs.

22
TTCS

• AMS-02-F04/ Overpressurization of Orbiter Payload
  Bay
• Review of Design
• Status OPEN

23
TTCS

• AMS-02-F05/ Rupture of AMS-02 Pressurized Systems
  
• 5.4.1 SVM Testing of carbon dioxide
  freezing/heating cycles
• 5.4.2 SVM Thermal Analysis
• 5.4.3 SVM Analysis based on worst case thermal
  profiles and two failures (if applicable)
• Status OPEN

24
TTCS

• AMS-02-F05/ Rupture of AMS-02 Pressurized Systems
  
• 6.1.3 SVM Review of Tracker Thermal Control
  System Filling Procedures
• Status OPEN

25
TTCS

• AMS-02-F10/ Flammable Materials in the Payload
  Bay
• 2.1.1 SVM Review of design and as built
  hardware for proper design, fill and construction
  of heat pipes.
• 2.1.2 SVM Flammability assessment on the use of
  ammonia in the payload bay.
• Status OPEN

26
Quality Assurance

• Main issue integration hardware schedule and
  procedure.
• For Star Tracker and TTCS the Project plan is
  available and already send to Jacobs
• For Tracker is available a draft version, and we
  work during TIM to translate in a MS version.