1. Brandon Robinson Danut Tabacaru Victor Ho Autonomous Spacecraft Impact Monitoring and Repair Autonomous Spacecraft Impact Monitoring and Repair

2. Agenda Budget Update Hardware Update Software Modeling Milestone Update

3. Budget update Aluminum Plates20 Frame20 Strain Gauges and Bonding chemicals180 Ultrasonic Transducers200 Nastran Software2000in kind Wiring20 ADC Board1700In kind Weights20 Project Demo100 Total$4260 Cost to us$560

4. Hardware update (1) Strain Gauges Vishay 240UZ Low Cost 0.24” gauge length 4 per side layout – 16 in total Test Plate 14” x 14” aluminum 1/8” thickness Test plate set up with strain gauges and transducers

5. Dimensions of Test Set Up

6. Hardware update (2) Analog/Digital Converter Card Minimum 16 channels Fast sampling rate or simultaneous sampling Reputable and affordable NI Data Acquisition Card

7. Software analysis NX Nastran Analytical model using FEM Damage modeling Compare with physical model Example of FEA of a test plate http://www.flextegrity.com/images/new_art/VGOGraphic2.jpg

8. Milestone update 1 st Design Update PresentationNov. 11, 2009 Complete first set of models for Finite Element Analysis Dec. 10, 2009 Complete assembly of hardware for test set upDec. 15, 2009 Complete first set of strain gauge testsJan. 10, 2009 Complete Preliminary Design Review/ReportJan. 13, 2010 Begin ultrasonic transducer testingJan. 15, 2010

9. Thank you