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Leakage Test Stand Improvement Marie Rohrbaugh

Leakage Test Stand Improvement Marie Rohrbaugh. Mission Statement: Reduce the effect of fixture leakage on leakage data. Background. Situation: External Leakage Testing Important Test Should be very near zero Goal: Reduce the effect of fixture leakage on test data.

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Leakage Test Stand Improvement Marie Rohrbaugh

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  1. Leakage Test Stand ImprovementMarie Rohrbaugh Mission Statement: Reduce the effect of fixture leakage on leakage data

  2. Background Situation: • External Leakage Testing • Important Test • Should be very near zero Goal: • Reduce the effect of fixture leakage on test data

  3. Highly Concentrated Area • Vent Between O-rings to eliminate pressure build-up • Pulse Purge

  4. Large Surface Area • Large o-ring seals • 2 holes 180 degrees apart • Pressurize one side with Nitrogen Nitrogen In Vacuum Chamber

  5. Function Tree

  6. Block Diagram

  7. Voice of the Engineer

  8. Constraints • Use of Nitrogen Gas • 1 psi Vacuum • 24V signal power supply • Class10,000 Clean Room • SAFE USERS

  9. Necessary Tasks • Change Plug Design (Interface with the can) • Pneumatics Design/Layout • FMEA • Software Controls • Moog will provide Manufacturing • Testing • Maintenance and Training Plans

  10. Benchmarks Vented

  11. Brainstorming • Pulse with Nitrogen to both • Large O-rings release to ambient on opposite side • Vent hole toggles between Nitrogen and Vacuum

  12. Brainstorming • Always a Constant flow of Nitrogen to Large Orings • Vent hole Toggles between Vacuum and Nitrogen

  13. Brainstorming • Constant Flow to large O-ring • Vent hole Toggles between pressurized Nitrogen and Ambient

  14. Brainstorming • Constant flow of Nitrogen to Large O-rings • Vent Hole has a constant Vacuum

  15. Staffing

  16. Feedback • Improve Block Diagram to include a detailed interface with the AGT and the two systems • Team Must Understand functionality • Constraints vs. Functions • If team believes another way is better, “ OK” • Timeline • IP considerations: We will work it all out over summer • Drawings • Test Specifications

  17. Questions??

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