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Surveillance MAV Project – Road Map – Senior Design I Research Testing & Documentation Finalize with Propulsion Team Wing Stability Analysis Wing Development Research – Wing Shape and Stability Airfoil Analysis Research - Airfoils Research – Flight Envelope Research – Materials, Manufacturing, Connectivity Documentation – Materials, Manufacturing, Connectivity Feasibility Analysis Build/Test – Materials, Manufacturing, Connectivity ElectronicsAerodynamicsIntegration Final MAV Design – Design Concepts, Bill of Materials Feedback Flight Models Feedback Week 1, 2, 3Week 10Week 4Week 5Week 6,7Week 8,9
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Surveillance MAV Project – Road Map – Senior Design II Research – Materials, Manufacturing, Connectivity ElectronicsAerodynamicsIntegration Feedback Week 1, 2, 3Week 10Week 4Week 5Week 6,7Week 8,9
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Surveillance MAV Project – Gantt Chart – Senior Design I Aerodynamics Electronics Integration W 1 Wing Stability Analysis Wing Development Research – Wing Shape and Stability Airfoil Analysis Research – Flight Envelope Flight Models Research – Airfoils Research Testing & Documentation Finalize with Propulsion Team Research – Materials, Manufacturing, Connectivity Documentation – Materials, Manufacturing, Connectivity Feasibility Analysis Build/Test – Materials, Manufacturing, Connectivity Final MAV Design – Design Concepts, Bill of Materials W 2W 3W 4W 5W 6W 7W 8W 9W 10
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Surveillance MAV Project – Gantt Chart – Senior Design II
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Surveillance MAV Project – Objectives List NecessaryDesirable Able to fly 600 meters (linear) Able to take a “legible” picture of a 1.5 square-meter symbol located on the ground Wireless remote control (human operator) Stay within budget (~$4500) Stable, consistent launching Able to be flown accurately 500 meters from the target symbol Must be durable Must be able to deliver a hard copy of the photo to judges within 45 minutes of launch Black and white photo Onboard power supply Capture and transmit live video Capture and record video onboard Able to rotate camera Able to fly 1.2 kilometers or more Smallest possible maximum linear dimension Lightest possible weight MAV able to be reproduced consistently Color photo GPS Autonomous flight Stability Augmentation System Use Fall/Winter Senior Design Team’s Propulsion System/Data
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Surveillance MAV Project – Objective Tree The MAV must complete the mission outlined by the IMAVC. Aerodynamics Electronics Integration Picture Propulsion Remote Control MAV Stability Lift/Drag Size Endurance Size Endurance Size Endurance Manufacturability Connectivity See Requirements
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Surveillance MAV Project – Requirements AerodynamicsIntegrationElectronics Stability Lift/Drag Size Endurance - Must be stable in pitch, yaw, roll - Aircraft will have a positive pitching moment intercept and a negative slope - Elevons shall be effective in controlling pitch rates - Aircraft shall be critically damped in yaw direction - Aircraft yawing moment curve must be positive and 0 intercept - Aircraft shall have a negative rolling moment and 0 intercept - Elevons shall be effective in controlling roll rates - Force on control surfaces shall not exceed force provided by servo - The CG shall be located to ensure stability - Elevon operation shall have minimal effect on yaw - Planform must minimize tip vortices Picture Propulsion Remote Control Size Endurance - Take photo - Record photo - Transmit photo - Receive photo - Minimize power consumption - Radio - Receiver - As small and compact as possible (within the scope of the project) - Sufficient battery - Lasting parts Size Endurance Manufacturability Connectivity - As small and compact as possible, but still able to carry all necessary components - Drop test (10’ vertical drop) - Static load test - Failure - Pod shock/compression test - ANSYS models - Construction tools - Feasibility - Material documentation/knowledge/experience - Connect wing to pod - Shear landing test - Maintain stability/lift/drag for the duration of the flight - Planform that optimizes lift for small maximum linear dimension
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Surveillance MAV Project – Specifications AerodynamicsIntegrationElectronics Stability Lift/Drag Size Endurance - C mo > 0 - C mα < 0 - C mδev > ? - ξn < 0 - C n0 = 0 - C n > 0 - C lδev > ? - N.P. < Xcg - Span Efficiency Factor e > ? - Span b <= 25.4 cm - AR > 1 Picture Propulsion Remote Control Size Endurance - Camera Resolution: > 300 lines - Power Supplied: 450 mA; 11 V - Thrust Supplied: 70 g - Transmitter Frequency: 2.4 GHz - Transmitter RF Power Output: 80 mW - Receiver Frequency: 2.4 GHz - Receiver Gain: 20 db - Receiver Impedance: 50 ohms - Antenna Frequency: 2.4 GHz - Antenna Gain: 8 dbi - Antenna Beam Width: 8º - Antenna Impedance: 50 ohms - Camera Dimensions: 20 x 20 x 15 mm - Camera Weight: 5.5 g - Transmitter Dimensions: 15 x 15 x 5 mm - Transmitter Weight: 3 g - Servo Dimensions: 300 x 100 x 200 mm - Servo Weight: 4.3 g - Propulsion System Dimensions: ??? - Propulsion System Weight: ??? - Camera Power Consumption: 420 mW - Transmitter Power Consumption: 210 mW - Servo Power Consumption: 1 W Size Endurance Manufacturability Connectivity - Capable of holding 60 g in minimal volume - Drop Test: MAV must withstand 10 ft vertical drop (from tail, left/right wing, nose, and center) with no apparent damage - Static Loading Test: MAV must withstand suspension from outer wing tips, loading with “factor of safety” of 1.5, with no apparent damage - Maximum Dynamic Loading Test: MAV attached to rod through CG, exposed to simulated flight speeds until time of fatigue - Dynamic Rate Test: Using dynamic test stand with incorporated ball/socket joint, attach 0.02 inch diameter carbon rods to nose, left/right wings, test dynamic rolling/pitching rates by measuring vertical displacement of carbon rods - Rapid Prototyping Resolution: Up to 0.03 inches - Machining Precision: Up to 0.005 inches - Shearing: Perform compression test to determine shear strength of connection between wing/pod - Minimum Flight Thrust = x
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Control Power Camera System Skin Propu- lsion Wing/ Pod Flight - Yaw Flight - Pitch Flight - Roll 0203 04 0105 06 070809101112 Surveillance MAV Project – Morphological Analysis Remote Control (Human Operator) Remote Control (Computer/ Human Operator) Stability Augmenta- tion Autonomo- us None Lithium Polymer Battery GasMicroturbi- ne Alkaline Batteries Capacitor Camera with Film Storage Camera with Digital Storage Camera with Transmitter Infrared Camera with Transmitter Night Vision Camera with Transmitter Movable Camera with Transmitter Shrink- wrap Tissue Paper Parylene-CResin/Epo- xy MylarDuroboticsFabricPolymersLatexChemical Resin Dip Electric Motor/Pro- pellor Gas Motor/Pro- pellor Compress- ed Air OrnithopterElectric Motor/Pro- pellor/Shr- oud PolymersRapid Prototyping DuroboticsKevlarCarbon Fiber FiberglassComposite Rods Composite Tow Kevlar/Ca- rbon Combo Titanium Alloy BalsaFoam RudderSpoilersMorphingThrust Vectoring (Drag) Differential Morphing Elevon Movable C.G. Thrust ElevatorElevonsThrust Vectoring MorphingMovable C.G. Elevons FlaperonsAileronsThrust Vectoring Spoilers Morphing Movable C.G. Fiberglass None
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Surveillance MAV Project – QFD Analysis (Phase I) Key 0 = not important 1 = slightly important 3 = important 9 = very important Customer Requirements Able to fly 600 meters (linear) Able to take a “legible” picture Wireless remote control Stay within budget Stable, consistent launching unnecessary Able to be flown accurately Must be durable Must provide hard copy of photo Onboard power supply Customer Weight 9 9 9 3 9 3 3 9 9 Engineering Metrics Weight (g) Dimensions (cm) Resolution (lines) Power (mAh)Thrust (g) RF Power (mW) 1 0 0 1 3 3 3 0 3 1 0 0 1 3 3 1 0 3 Voice of the Customer 0 9 0 3 0 0 0 1 1 9 3 9 3 1 1 0 1 9 9 0 0 1 3 3 1 0 3 0 1 9 1 0 1 0 9 3 Technical Target 80 Weight (g) Dimensions (cm) Resolution (lines) Power (mAh ) Thrust (g) RF Power (mW) Optimization 3 0 1 9 0 0 9 1 0 1 1 0 0 01 Key 0 = not correlated 1 = slightly correlated 3 = correlated 9 = highly correlated 65300 38025.4 100Raw Score Relative Weight 84 78 108300150 204.09.08.12.32.16.22
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Surveillance MAV Project – QFD Analysis (Phase II) Engineering Metrics Phase I Relative Weights Weight (g) Dimensions (cm) Resolution (lines) Power (mAh) Thrust (g) RF Power (mW) Raw Score Relative Weight WingPodPropulsion SystemCamera SystemServosMAV Parts.09.08.12.32.16.22 11931 91110 00090 00993 00900 00333 Key 0 = no contribution 1 = slight contribution 3 = notable contribution 9 = large contribution.81.175.874.971.71.06.01.43.37.13
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Surveillance MAV Project – Pugh Analysis (page 1) Design Concepts 01 Control Power Camera System Skin Propulsion Wing/Pod Flight - Yaw Flight - Pitch Flight - Roll Sub- Functions Remote Control (Human Operator) 020304 Lithium Polymer Battery Camera with Transmitter Parylene-C Electric Motor/Propeller Carbon Fiber Rudder Elevons Remote Control (Human Operator) Lithium Polymer Battery Camera with Transmitter Shrink-wrap Electric Motor/Propeller/Shroud Carbon Fiber Rudder Elevons Remote Control (Human Operator) Lithium Polymer Battery Camera with Digital Storage Fiberglass Electric Motor/Propeller Fiberglass None Elevons Remote Control (Human Operator) Lithium Polymer Battery Movable Camera with Transmitter Latex Electric Motor/Propeller Foam None Morphing Criteria Able to fly 600 meters (linear) Able to take a “legible” picture Wireless remote control Stay within budget Stable, consistent launching unnecessary Able to be flown accurately Must be durable Must provide hard copy of photo Onboard power supply Score # +’s # S’s # -’s 01020304 Design Concepts SS+ ++ SSS -- +-+ +S+ S-- S-S SSS 314 543 142 Criteria Able to fly 600 meters (linear) Able to take a “legible” picture Wireless remote control Stay within budget Stable, consistent launching unnecessary Able to be flown accurately Must be durable Must provide hard copy of photo Onboard power supply Score # +’s # S’s # -’s 01020304 Design Concepts SSS --S SSS +-- --S --S S-- S-S SSS 100 537 362 REFERENCEREFERENCE REFERENCEREFERENCE + -
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Surveillance MAV Project – Pugh Analysis (page 2) Criteria Able to fly 600 meters (linear) Able to take a “legible” picture Wireless remote control Stay within budget Stable, consistent launching unnecessary Able to be flown accurately Must be durable Must provide hard copy of photo Onboard power supply Score # +’s # S’s # -’s 01020304 Design Concepts SSS +-+ SSS ++S ++ +-+ ++- ++ SSS 643 334 022 Criteria Able to fly 600 meters (linear) Able to take a “legible” picture Wireless remote control Stay within budget Stable, consistent launching unnecessary Able to be flown accurately Must be durable Must provide hard copy of photo Onboard power supply Score # +’s # S’s # -’s 01020304 Design Concepts SSS S-- SSS +S+ S-- S-- +++ S-S SSS 212 744 043 REFERENCEREFERENCE REFERENCEREFERENCE 01 Control Power Camera System Skin Propulsion Wing/Pod Flight - Yaw Flight - Pitch Flight - Roll Sub- Functions Remote Control (Human Operator) 020304 Lithium Polymer Battery Camera with Transmitter Parylene-C Electric Motor/Propeller Carbon Fiber Rudder Elevons Remote Control (Human Operator) Lithium Polymer Battery Camera with Transmitter Shrink-wrap Electric Motor/Propeller/Shroud Carbon Fiber Rudder Elevons Remote Control (Human Operator) Lithium Polymer Battery Camera with Digital Storage Fiberglass Electric Motor/Propeller Fiberglass None Elevons Remote Control (Human Operator) Lithium Polymer Battery Movable Camera with Transmitter Latex Electric Motor/Propeller Foam None Morphing - +
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