1. Temple University Advisors: Dr. John Helferty & Dr. Chang-Hee Won Charles Wright Jinyan Chen Billy Cheng Brittany Gray 1

2. Objectives  Design, Build, And Test A Vibration Suppression System To Counteract Launch Vehicle Vibrations  Measure The Vibration Environment Inside The Terrier-Orion Rocket Will Use Two Identical Vibration Measurement Systems ○ A Custom Built Passive Damping System ○ Rigidly Attached System 2

3. Benefits  Efficient Vibration Isolation Systems For Small Payloads Increased Operational Performance Of Onboard Sensing Equipment Better Protection Of The Sensing Equipment 3

4. Design Process Prepare Functional Design Schematic Passive Vibration System Design Module Placement On Plate Acquire Materials Accelerometers, Gyroscopes, Microprocessors, Etc. Assemble Design Passive Vibration System Rigidly Attached Vibration System Data Acquisition Test Each Part Compatibility Functionality Defects Validate System Functionality Meets Design Specs Vibration Reduction With Passive System Data  If System Does Not Perform According To Requirements, Repeat The Design Process Otherwise, It Is The FINAL DESIGN 4

5. Block Diagram Of Systems Rocket Launch G-Switch Microprocessor (Language : C) Camera (optional) Accelerometers (x,y,z) And Gyroscopes (On the Plate) Accelerometers (x,y,z) And Gyroscopes (Mounted On Passive Damping System) Memory Compare Data Of All Accelerometers And Gyros 5

6. Support System Requirements  Power For Operation  Data Storage  2 Drop-Down Remove Before Flight (RBF) Activation Wires  Gravity Switch Activation System At Launch (0 V Before Launch) 6

7. Support System Requirements  Mechanical Interface With The 10 Bulkhead Screws  Wire Harnessing And Staking  Optional Camera To Monitor Equipment - Mount A Ball-In-Tube For Monitoring 7

8. Payload Design Requirements 8

9. Design Concept 1 9  Silicone Gel Mounts Designed For Isolating Printed Circuit Boards Offers Shock And Vibration Damping

10. Design Concept 2 10  Spring Damping System o Board Will Be Suspended Between Springs To Dampen Motion In All Directions Casing Springs Printed Circuit Board

11. Preliminary Parts List  Springs  Printed Circuit Boards  Soft Silicone Gel Mounts  Microprocessor  Flash Memory  Nuts And Bolts  Accelerometers  Gyroscopes 11* This is just a preliminary list that will be modified as the project moves along.

12. Related Experiments  Paper by D.I. Carantu and C. Shove Titled “Overview of Payload Vibration Isolation Systems” Tested Vibrations On Small Sounding Rockets ○ Most Passive Vibration Systems Do Not Achieve Greater Than A 5 to 1 Ratio ○ Passive-Active Vibration Systems Achieved A 10 To 1 Ratio 12

13. Expect To Learn  Discover If Our Passive System Can Dampen The Canister Vibrations  We Will Compare The Data Between All The Accelerometers And Gyros 13

14. Thank you Questions? 14