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Oklahoma State University Aerospace Capstone. Orange Team Final Presentation “Shamu: A Whale of a Plane” April 16, 2001. Orange Team Presentation Overview. Team Architecture and Group Responsibilities Technical Group Reports Aerodynamics Group Propulsion Group Structures Group

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oklahoma state university aerospace capstone

Oklahoma State UniversityAerospace Capstone

Orange Team Final Presentation

“Shamu: A Whale of a Plane”

April 16, 2001

orange team presentation overview
Orange Team Presentation Overview
  • Team Architecture and Group Responsibilities
  • Technical Group Reports
    • Aerodynamics Group
    • Propulsion Group
    • Structures Group
  • Financial Overview
  • Highlight Video
  • Questions

Orange Team

technical group responsibilities
Technical Group Responsibilities
  • Aerodynamics Group
    • Design of the aircraft
      • Airfoil Selection
      • Wing and Tail Sizing
      • Fuselage Configuration
      • Control Surface Sizing

Orange Team

technical group responsibilities1
Technical Group Responsibilities
  • Aerodynamics Group (con’t)
    • Integration of Propulsion Needs
      • Speed Controller, Motor, and Battery cooling
    • Adaptation to Structural Requirements
      • Wing carry-through structure, tail mounting, and control linkages
    • Construction Drawings

Orange Team

technical group responsibilities2
Technical Group Responsibilities
  • Propulsion Group
    • Testing
      • Power, Capacity, and Thrust from past motors and batteries
    • Selection and Sizing
      • Motor, Propeller, Batteries, and Gear Box
    • System Performance
      • Theoretical Flight Profile with Aerodynamics Group Optimization
      • Develop Sortie Strategy from Prototype Flight Tests

Orange Team

technical group responsibilities3
Technical Group Responsibilities
  • Structures Group
    • Structural Analysis and Design
      • Major Components are Wing, Fuselage, Tail, and Landing Gear
    • Construction Techniques and Materials
    • Component Placement
    • Group Responsible for Aircraft Construction

Orange Team

orange team aerodynamics group

Orange TeamAerodynamics Group

Tiffany Boehm – Lead

Luke Bell

Charles O’Neill

Greg Schulke

aerodynamics group
Aerodynamics Group
  • Preliminary Design Considerations
    • Optimization
    • Conceptual sketches were drawn by entire team
    • Additional sketches from underclassmen

Orange Team

aerodynamics group1
Aerodynamics Group
  • Optimization
    • Blends the contest rules and scoring details with aerodynamic and physical principles.
    • Produces the best scoring mission profile.
    • Also defines some aircraft information such as wing area and the amount of lift needed.

Orange Team

aerodynamics group2

Output:

Optimized

Input:

Guess Values

Iterate

Takeoff

Geometry

Cruise

Propulsion

Score

Aerodynamics Group

Optimization Program Logic

Orange Team

aerodynamics group4
Aerodynamics Group
  • Preliminary Design Considerations
    • Evaluation of conceptual design
    • Selection of aircraft configuration
    • Further design decisions
    • Payload configuration exploration

Orange Team

aerodynamics group5
Aerodynamics Group
  • Five main configurations were considered in detail.
  • Conventional design chosen using decision matrix.

Orange Team

aerodynamics group6
Aerodynamics Group
  • Further design decisions for configuration
    • Wing placement
    • Tail configuration

Orange Team

aerodynamics group7
Aerodynamics Group
  • Payload configuration
    • Speed of payload exchange
    • Structural considerations
    • Weight

Orange Team

aerodynamics group8
Aerodynamics Group
  • Detail Design Considerations
    • Main airfoil selection
    • Stability and control development
    • Drag analysis and reduction
    • Further development of the optimization program

Orange Team

aerodynamics group9
Aerodynamics Group
  • Airfoil Selection
    • Wing span limited by contest rules.
    • Wing area and needed lift performance found using the optimization program
    • Polar plots used to find an airfoil with the desired lift and drag performance
    • Eppler 423 airfoil was chosen

Orange Team

aerodynamics group10
Aerodynamics Group
  • Stability and Control Issues
    • Weight and balance
    • Sizing of vertical and horizontal tail surfaces
    • Trim analysis
    • Aileron sizing
    • Polyhedral analysis

Orange Team

aerodynamics group11
Aerodynamics Group
  • Drag Analysis and Reduction
    • Identify main sources of drag
    • Design refinements for reduction of drag
    • Post-production modifications for further reduction of drag

Orange Team

aerodynamics group12
Aerodynamics Group

Drag Breakdown

Orange Team

aerodynamics group13
Aerodynamics Group
  • Steps taken to reduce drag
    • Improve surface smoothness of entire aircraft
    • Smooth, rounded transitions between surfaces
    • Tapered surfaces for the fore and aft assemblies
    • Fillets between the wing and fuselage surfaces
    • Fillets between the tail and fuselage surfaces
    • Wheel pants

Orange Team

aerodynamics group14
Aerodynamics Group

Drag Coefficients

Orange Team

aerodynamics group15
Aerodynamics Group
  • Optimization Program refinements
    • Aerodynamic Additions
      • Inclusions of drag analysis
    • Propulsion Additions
      • Experimental values integrated into program
      • Flight testing data used to further refine the program

Orange Team

aerodynamics group16
Aerodynamics Group
  • Final Design Summary
    • Conventional aircraft configuration
    • Low wing
    • Polyhedral wing
    • Cylindrical fuselage

Orange Team

propulsion posse pro pul sion pr p l sh n n

Propulsion Possepro·pul·sion - (pr -p l sh n) n.

The process of driving or propelling.

A driving or propelling force.

Amanda Ciskowski

propulsion posse

Propulsion Posse

Team Members

Binaya Thapa – Lead

Blake Cook

Millay Brians

propulsion overview
Propulsion Overview
  • Literature Survey
  • Restrictions
  • Motor Selection
  • Battery Selection
  • Propeller Selection

Orange Team

contest restrictions
Contest Restrictions
  • Motor
    • Restricted to Only Two Companies
    • Maximum Amperage - 40 Amps
    • Propeller Driven Brushed Electric Motor
    • Unmodified and “Over-the-Counter”
  • Battery
    • Nickel-Cadmium
    • Maximum Weight - Five Pounds
    • “Over-the-Counter”

Orange Team

motor selection
Motor Selection
  • Power Output – 1150 Watts
  • AstroFlight Motors
    • 640
    • 660
    • 690

Orange Team

battery selection
Battery Selection
  • Application
  • Capacity per Mass
  • Weight

Orange Team

propeller selection
Propeller Selection
  • Types of Propellers
    • APC
    • Wood
    • Carbon Fiber
    • Epoxy Composite
  • Pitch to Diameter Ratio
  • Theoretical/Experimental Analysis
    • Wind Tunnel Testing

Orange Team

final propulsion system
Final Propulsion System
  • AstroFlight – 661 Motor
  • Gear Box Ratio – 2.71
  • 37 Cells of RC-2400 Batteries
  • 22x20 Bolly Propeller

Orange Team

structures group

Structures Group

Michael Ayres – Team Lead

Jim Meiseman

Voon-Seng Chea

Chir Siang Pea

Naoki Hosoda

Loh Yuh

Jogendran Pulendran

Cheng Shan Gan

structures overview
Structures Overview
  • Fuselage
  • Wing
  • Tail Section
  • Landing Gear
  • Speed Loader

Orange Team

fuselage structure options
Fuselage Structure Options
  • Longerons
  • Reinforced Skin
  • Stringers
  • Keelson

Orange Team

fuselage figures of merit
Fuselage Figures of Merit
  • Weight
  • Bending Strength
  • Connection Interface
  • Construction Complexity

Orange Team

wing structure options
Wing Structure Options
  • Tube Spar
  • C-Channel Spar
  • End Grain Balsa Spar
  • Hybrid Spar

Orange Team

wing figures of merit
Wing Figures of Merit
  • Weight
  • Bending Strength
  • Connection Interface
  • Construction Complexity

Orange Team

landing gear types
Landing Gear Types
  • Conventional Bow
  • Single Stroke Strut
  • Two-Stroke Strut

Orange Team

landing gear figures of merit
Landing Gear Figures of Merit
  • Weight
  • Drag
  • Ground Steerability
  • Dependability
  • Manufacturability

Orange Team

final design
Final Design

Materials, carrythrough structure, and construction methods

Fuselage

- Foam/Carbon Fiber Sandwich

- Rotocut Tooling

- Balsa Sandwich Wing Carrythrough

Orange Team

final design cont d
Final Design Cont’d

Wing and Tail Section

- Foam/Carbon Fiber Sandwich

- Feathercut Tooling and Formica Templates

- Landing Gear Carrythrough

Landing Gear

- Multiple Layers of Carbon Fiber

Speed Loader

- Custom Sized Duffle Bag

Orange Team

financial overview

Financial Overview

Amanda Ciskowski- Chief Engineer

financial overview1
Financial Overview
  • Funding
    • Corporate and private sponsorship
    • Material Donations
  • Expense Categories
    • Mechanical and Electrical systems
    • Consumable materials

Orange Team

thank you to our sponsors
Mercruiser

Advanced Composites Group

Pump and Motor Works, Inc.

Phillips 66

Chevron-Phillips

OSU Flight Factory

Advanced Racing Composites

AstroFlight

NASA

Charles Machine Works

Anheuser-Busch

Frankfurt-Short-Bruza Associates

Thank you to our sponsors…

Orange Team

more sponsors
More sponsors…
  • William and Evelyn Ciskowski
  • Glen and Chris Taylor
  • Garryl and Tracy Keel
  • Keith and Barbara Keel

Orange Team

special thanks to
Special Thanks to…
  • Dr. Arena and Joe for all of their help
  • Dan Bierly, our pilot
  • Dr. Delahoussaye for his support…and the microwave
  • Janet Smith and Sally Kellenberger for the survival kits

Orange Team

questions
Questions?

Orange Team