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Launching Station Launching Station for Sensor for Sensor
DeploymentDeploymentTeam Members:Team Members:
Brian Molnar, Shawn McGrady, Joe Liquore, Ken SchroederBrian Molnar, Shawn McGrady, Joe Liquore, Ken Schroeder
Faculty Advisor: Faculty Advisor: Dr. Jeff Dr. Jeff Kozak
Team Consultant: Michael ShahenMichael Shahen
Team 02010
Sponsor:Sponsor:R•I•T Mechanical Engineering DepartmentR•I•T Mechanical Engineering Department
Midterm Design ReviewMidterm Design Review
WWWA A A NNN D D D EEE R R R III N N N G G G BBB R R R OOO O O O K K K DDD E E E SSS I I I GGG NNN
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MotivationMotivation
Smart Dust Module Animal Tag Transponder
Applications:1. Department of Defense2. Civilian3. Space
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Performance ParametersPerformance Parameters
• Launching station shall be mounted to a remotely controlled vehicle
• Overall size less than 12” x 12”
Minimum Required Performance
• Wind Sensor
• Global Position System (G.P.S.)
Desired Performance
• Self-contained power supply
• Reloading System
• Launching station should be as small as possible
• Operate in atmospheric conditions ranging from 0°C to 50°C
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Initial Brainstorming Initial Brainstorming ResultsResultsMethod of Propulsion Type of Loading
Compressed Air Gravity Feed MagazineSpring Spring Loaded MagazineCO2 RevolverRubber Band Gatling GunImpact Hammer Muzzle LoaderChemical Machine GunGun PowderRocket Fuel Modification of Launch Trajectory AngleCatapult ActuatorSport and Clave Thrower Vary Propulsion PowerCombustion Actuator and Vary Propulsion PowerCentrifugal ForceInertial drive Method of Rotating Launch PlatformWheel Drive Turn Entire Robot with Robot WheelsWater Power Gear Driven TurretCross Bow
Brainstorming Results After VotingBrainstorming Results After Voting•••• Compressed Air/CO2 •••• Gravity Feed Magazine•••• Spring ••• Spring Loaded Magazine
• Rubber Band • RevolverImpact Hammer Gatling Gun
• Chemical Muzzle LoaderGun Powder Machine GunRocket FuelCatapultSport and Clave Thrower ActuatorCombustion • Vary Propulsion PowerCentrifugal Force ••• Actuator and Vary Propulsion PowerInertial drive
•• Wheel DriveWater Power •• Turn Entire Robot with Robot WheelsCross Bow •• Gear Driven Turret
Method of Propulsion Type of Loading
Modification of Launch Trajectory Angle
Method of Rotating Launch Platform
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Compressed Air/CO2 Concept
Initial Design Initial Design ConceptsConcepts
Rubber-band Launched Concept
Spring Launched Concept
Wheel Drive Concept
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Feasibility AssessmentFeasibility Assessment
1. Technical2. Economic3. Market4. Schedule5. Performance
0
1
2
3T1
T2
E1
E2
M1
M2
S1
S2
P1
P2
P3
P4
Spring Launch
Rubber Band Launch
Wheel Friction Launch
Pneumatic Launch
Microrockets (Base Concept)
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Components of Initial Components of Initial DesignDesign
Wind SensorMechanical Components
Tilting SystemPneumaticsG.P.S.
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PneumaticsPneumatics
Regulator
Actuator Valve
Bolt Valve
BoltActuator
Tank
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Bolt, Barrel, Magazine Bolt, Barrel, Magazine &Receiver&Receiver
Magazine
Actuator
Bolt
Receiver
Barrel
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Finite Element Finite Element AnalysisAnalysis
€
σθ =pi ⋅ ri
2 + ro2
( )
ro2 − ri
2
€
σθ =800
lb
in 2⋅ 0.252in2 + 0.334 in2( )
0.334in 2 − 0.252in 2
€
σθ =2,903lb
in2
€
σY = 35,000lb
in 2 6061- T6 Aluminum
€
σr = − pi
€
σr = −800p.s.i.
€
σθ =3.056lb
in2
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Tilting MechanismTilting MechanismReceiver
Barrel
GearsStepper Motor
Fork
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POSITION 2: BOLT CLOSED, READY TO FIRE• Inserted into 0.5 inch spheres
•Allows for sensor protection during deployment
•Allows for various types of sensors to be launched
•Simplifies Aerodynamics (constant projected area)
•Allows for easier reloading
Sensor EncapsulationSensor Encapsulation
Sensor 0.5” Sphere
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• Air Resistance or Drag - decreases overall range of sensor
• Effects of Wind• Crosswind – Causes deflection of flight path• Headwind/Tailwind – Reduces/increases overall range
• Rotation/Spin – Deflection of flight path and/or changes in range (Magnus Effect)
•Sensor Mass – Reduces or increases range.
Sensor AerodynamicsSensor Aerodynamics
Mass Effects
30.4
30.6
30.8
31
31.2
31.4
31.6
31.8
1
Material
Range (ft)
Polycarbonate (m=.00071 slugs) White Delrin (m=.00083 slugs) Steel (m=.00462 slugs)
Range
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
0.0 5.0 10.0 15.0 20.0 25.0 30.0 35.0
Distance (ft)
Height (ft)
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G.P.S.G.P.S.
• Allows the system Allows the system to determine to determine current locationcurrent location
• OEM style GPS OEM style GPS sensor utilizedsensor utilized• Low power Low power • Small sizeSmall size• Requires an Requires an
external antennaexternal antenna
Antenna
G.P.S. Sensor
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Wind SensorWind Sensor
• Allows the robot to Allows the robot to compensate for compensate for wind by wind by determining determining magnitude and magnitude and direction of direction of maximum sustained maximum sustained gustgust
• Utilizes 3 pressure Utilizes 3 pressure sensors sensors • 0-3 inches of water0-3 inches of water
Wind Sensor
Pressure Sensor
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Next Quarter GoalsNext Quarter Goals
1. Build a fully functional prototype on 12” x 12” base.2. Test functionality of all components and interaction with
other parts.3. Calibrate wind sensor in the R.I.T. closed circuit wind
tunnel.4. Integrate all possible components onto 10cm robot, and
conduct tests with robot/launching station assembly.
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Launching Station Launching Station for Sensor for Sensor
DeploymentDeployment
Questions?Questions?
Team 02010
Sponsor:Sponsor:R•I•T Mechanical Engineering DepartmentR•I•T Mechanical Engineering Department
Midterm Design ReviewMidterm Design Review
WWWA A A NNN D D D EEE R R R III N N N G G G BBB R R R OOO O O O K K K DDD E E E SSS I I I GGG NNN