VERTIGO2 Preliminary Design Presentation October 27, 2004.
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Transcript of VERTIGO2 Preliminary Design Presentation October 27, 2004.
Team Members
ECE Team
Mimi Phan (ECE Team Leader)
Kevin Boyce
Jeff Laub
Tebo Leburu
Prateek Mohan
Ryan Strauss
Duroseme Taylor
Calvin Turzillo
AE Team
Nikhil NairLuke Alexander (Project Leader)
CS Team
Chris Fernando
VERTIGO² Project Manager
Luke Alexander
VERTIGO² Project Manager
Luke Alexander
ECE CoordinatorMimi Phan
ECE CoordinatorMimi Phan
Circuitry GroupKevin BoyceTebo Leburu
Prateek MohanCalvin Turzillo
Circuitry GroupKevin BoyceTebo Leburu
Prateek MohanCalvin Turzillo
Programming GroupChris FernandoPrateek Mohan
Mimi PhanRyan StraussDuro Taylor
Programming GroupChris FernandoPrateek Mohan
Mimi PhanRyan StraussDuro Taylor
Web GroupPrateek MohanRyan Strauss
Web GroupPrateek MohanRyan Strauss
Communications GroupCalvin TurzilloJeff Laub
Communications GroupCalvin TurzilloJeff Laub
Team Organization
Introduction
VERTIGO—Versatile Exploratory Robotic Tilt-rotor for Information Gathering Operations—is a small dual mode aircraft designed as a VTOL aircraft with the ability to transition to normal horizontal flight. Many different projects have been undertaken to challenge the idea of a dual mode aircraft.
The advantages of utilizing both flight modes in one aircraft can be realized with a simple understanding of helicopter aerodynamics—namely the ratio of stability to altitude.
Project Background
• Previous Accomplishment Geometric designs developed Aerodynamic models developed Completed VERTIGO prototype
airframe
• Previous Design Problems Time Insufficient tilting design Improper center of mass configuration Too heavy
Aircraft Geometry and Specifications
Tip-to-tail length: 7’2”Fuselage length: 2’10”Boom length: 3’11”Wingspan: 6’Fuselage max width: 6”Tail width: 3’1”Dihedral: 5 degrees
Airfoil section: NACA 0012
• Design and integrate a proper electrical system to ensure functionality• Design a simple, sufficient tilting mechanism for the rotor assemblies• Perform laboratory testing to verify aerodynamics and functionality• Achieve vertical flight and vertical maneuverability• Land
Objectives
Primary Objectives
Secondary Objectives
• Transition to horizontal flight via tilting mechanism• Return to vertical flight• Land without catastrophe
Design Option 1
Microchip selectionPIC 16F Family
uses only 35 RISC instructions The 16F PIC only has 2 PWMs Maximum frequency of 20 MHz
PIC 18F FamilyPICBasic, second party software in C or Java Maximum frequency of 40 MHz consume less powerserial and I²C communication 8 PWMs built onMore memory
1 vs 2 Microchipsless power consumption weight reductionPICs communicate with one anothersimpler programming
Design Option 2 Flight control input device (RC controller vs. Laptop control)
RC ControllerPros.
Ease of control for PilotController is available from previous year’s VERTIGO
Cons.Controller needs to be re-programmed to interface with the on-board flight systemFor the above, the controller would need to be pulled apart to determine its capability.Difficult to programNo visual feedback for control of craftLimited time, Unlimited specs
Laptop & JoystickPros.
Better piloting interfaceJoystick need not be programmed as code exists on the laptopLaptop displays live video from the camera on-board the plane making piloting the craft easy
Cons.Pilot needs to be trained in joystick operationTime-lag in communication between ground station and on-board system.
Specifications Summary
Taking into consideration all 3 options mentioned previously
1 PIC 18F4431 microprocessor1 433 MHz Serial Transmitter1 433 MHz Serial Receiver1 Wireless camera w/ receiver1 Ground based controller5 14.8V LiIon battery packs
Program code will be written in PICBasic Pro.TTL logic design9600 baud transfer rates across RS232 protocol
Project Budget
Item Quantity Price Cost Vendor
PIC Microcontrollers 5 $9.58 $47.90 Microchip
Serial Receiver 1 $200.00 $200.00
Serial Transmitter 1 $200.00 $200.00
Joystick 2 $150.00 $300.00 CompUSA or Best Buy
Software 1 $100.00 $100.00
ECE Materials 1 $250.00 $250.00
AE/MAE Materials 1 $200.00 $200.00
Battery Charger 1 $119.00 $119.00
Servos 4 $40.00 $160.00 Towerhobbies.com
Geared Tilt Motor 1 $169.00 $169.00 Towerhobbies.com
Gyroscope 1 $350.00 $350.00
Motor Controls 2 $240.00 $480.00 Towerhobbies.com
Lithium Ion Batteries (per cell) 15 $15.00 $225.00 Towerhobbies.com
Communications (misc) 1 $300.00 $300.00
Printed Circuit Boards (assembled) 2 $150.00 $300.00
$3400.90
Total budgeted hours
Name Hours Worked Hours Budgeted Percentage Worked
Mimi Phan 52.5 56 93.75%
Kevin Boyce 17.5 56 31.25%
Jeff Laub 8 56 14.3%
Tebo Leburu 19 56 33.93%
Prateek Mohan 27 56 39.58%
Ryan Strauss 17.75 56 31.70%
Duroseme Taylor 18 56 32.14%
Calvin Turzillo 25 56 44.64%
Total 184.25 448 40.16%