Temple UniversityAdvisors: Dr. John Helferty & Dr. Chang-Hee Won

Charles WrightJinyan Chen

Billy ChengBrittany Gray

1

Objectives Design, Build, And Test A Vibration

Suppression System To Counteract Launch Vehicle Vibrations

Measure The Vibration Environment Inside The Terrier-Orion RocketWill Use Two Identical Vibration Measurement

Systems○ A Custom Built Passive Damping System○ Rigidly Attached System

2

Benefits Efficient Vibration Isolation

Systems For Small Payloads

Increased Operational Performance Of Onboard Sensing Equipment

Better Protection Of The Sensing Equipment

3

Design ProcessPrepare 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 ProcessOtherwise, It Is The FINAL DESIGN

4

Block Diagram Of SystemsRocket 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

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

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

Payload Design Requirements

8

Design Concept 1

9

Silicone Gel MountsDesigned For Isolating

Printed Circuit BoardsOffers Shock And

Vibration Damping

Design Concept 2

10

Spring Damping Systemo Board Will Be

Suspended Between Springs To Dampen Motion In All Directions

Casing

Springs Printed Circuit Board

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.

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

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

Thank you

Questions?

14