1. Intercollegiate Rocket Engineering Competition Spring 2015 EML 4551 - Ethics and Design Project Organization

2. Team Members Giancarlo Lombardi Christopher Hayes Maryel A. Gonzalez

3. OVERVIEW Problem Statement System Level Design Challenges and Goals Airframe Design Recovery System Design Propulsion System Design Rapid Airbrake Deployment System (RADS) Computer Simulations Testing and Validation Engineering Standards Curriculum Applications Global Learning Applications Team Poster

4. Problem Statement Design and construct a Rocket capable of lifting a 10 lb payload to 10,000 feet above ground level.

5. System Level Design Challenges and Goals Propulsion System Simple Design Highest Thrust to Weight Ratio Recovery System Dual Deployment Focus on Reliability/Redundancy Airframe Lightweight Design Structural Strength and Integrity Aerodynamic Performance Altitude Targeting System Airbrake parachute Onboard atmospheric sampling computer

6. Airframe and Related Components Focus on strength material choice – Composite materials vs. Aluminum Emphasis on Stability – Placement of center of gravity and pressure Structural Integrity – Bulkheads, Fins, Centering Rings

7. Propulsion System 1.Solid Three Types to be evaluated 2. Hybrid 3. Liquid

8. Solid Motor Cross Section View Liquid Motor Cross Section View Hybrid Motor Cross Section View

9. Propulsion System Design Comparison Solid MotorHybrid MotorLiquid Motor Advantages Simple Design High-Power Simple Design Low Cost Controlled Reaction High Power Disadvantages Uncontrolled Reaction Difficult to Simulate Lower Reliability Safety hazards Lower Power Complex Design High Cost

10. Recovery System Dedicated Recovery Computer Commercially available flight computer/altimeter Logs altitude, velocity, temperature, voltage Dual Deployment Drogue Parachute will be deployed at apogee Main Parachute will be deployed at 1000 feet Materials Focus on high strength materials for shock cords, Eye bolts, and Parachutes.

11. Altitude Targeting System Custom Flight Computer Reads and interpolates pressure information to accurately determine altitude and velocity Predicts when to deploy air brake in order to accurately reach 10,000 foot maximum goal Air-brake Parachute Rapid deployment parachute packing and ejection scheme Airbrake parachute will also double as drogue

12. Simulation Software Rocksim – Obtain theoretical flight profile and rocket stability

13. Simulation Software – cont. Solidworks Modeling  Verification of Geometry Simulation  Structural  External Flow Ansys Redundancy Testing

14. Testing and Validation Static Fire Test – Contained burn of rocket motor to validate expected thrust curve Airframe Structure test – Compression load test to simulate in-flight stresses on airframe

15. Testing and Validation – cont. Ground Ejection tests Purpose: confirm good section separation to allow parachute ejection Air Brake System Test Confirm functionality of air brake system on a subscale rocket

16. Curriculum Applications Fluid Mechanics Gas Dynamics – Supersonic speeds, compressible fluid flows, and nozzle design present Mechanics of Materials – Appropriate materials must be selected to ensure structural integrity of rocket during flight

17. Engineering Standards Observed NAR High Power Safety Code National Fire Protection Association Code for High Power Rocketry (NFPA 1127) Chapter 2 Federal Aviation Administration Code of Federal Regulations Part 101 Subpart C ATF – Federal Explosives Law and Regulations Part 555 ANSI B11.0 Machinery Safety Standards

18. Global Learning Cost-effective approach to manufacture and assemble rocket, maximizing access for the public Strict adherence to established codes and standards to ensure personnel safety Using SI / English units

19. Problem Statement Design a sounding rocket capable of launching a 10-pound payload to an altitude of 10,000 feet. Responsibilities Team MemberTasks and Responsibilities Maryel A. Gonzalez Sounding rocket research Rocket assembly and testing Structural analysis Project fundraising Christopher Hayes Research and design of rocket Solidworks modeling and simulations Rocket assembly and testing Giancarlo Lombardi Cost-effectiveness analysis of rocket components Testing and manufacturing of rocket prototype Airframe material analysis Design Objectives Minimize Weight Minimize Cost Environmentally-friendly fuels Motivation Increase access to space for the public Develop cost-effective method of entering space Timeline Team Members Faculty advisor Maryel A. Gonzalez Christopher Hayes Giancarlo Lombardi Dr. Benjamin Boesl