Post on 19-Feb-2016
description
Single Line Tethered Glider
Team P14462System Level Design Review
Jon ErbeldingPaul Grossi
Sajid Subhani
Kyle BallMatthew DouglasWilliam Charlock
11/2/2013 Systems Level Design Review P14462
Team Introduction
Team Member Major
Sajid Subhani Industrial Engineer - Team Lead
Paul Grossi Mechanical Engineer
Matt Douglas Mechanical Engineer
Jon Erbelding Mechanical Engineer
Kyle Ball Mechanical Engineer
Bill Charlock Mechanical Engineer
11/2/2013 Systems Level Design Review P14462
Agenda● Project Description Review● Customer Needs Review ● Customer Requirements Review● Functional Decomposition● Concept Development● Concept Comparison● Data Collection Architecture ● Risk Assessment● Project Planning● Work Breakdown Structure
11/2/2013 Systems Level Design Review P14462
Project Description● Goal: Design, build, and test a tethered,
small-scale, human-controlled glider.
● Critical Project Objectives:○ Maintain maximum tension on the tether○ Sustaining horizontal and vertical flight
paths○ Measure and record tether tension and
position○ Understand the influential parameters for
sustained, tethered, unpowered flight
Glider
Tether
Base Station
Operator w/controller
11/2/2013 Systems Level Design Review P14462
Customer Requirements
11/2/2013 Systems Level Design Review P14462
Engineering Requirements
Yellow: Major designBiege: DAQGrey: Test flightWhite: System environment
11/2/2013 Systems Level Design Review P14462
Functional Decomposition
11/2/2013 Systems Level Design Review P14462
Functional Decomposition
11/2/2013 Systems Level Design Review P14462
Functional Decomposition
11/2/2013 Systems Level Design Review P14462
Functional Decomposition
11/2/2013 Systems Level Design Review P14462
Concept Development● Gliders
○ Buy an RC glider○ Design and build an RC glider
● Measurement Devices on Base Station○ Buy a 3-axis Load Cell○ Build Load Cell from three 1-axis Load Cells○ GPS with Force Gauge○ Resistance Gyro with Force Gauge○ IMU with 1-axis Load Cell
11/2/2013 Systems Level Design Review P14462
Art’s Plane
● Sustained multiple damages● Gained crash experience● Possible tethered flight concept tests● Salvage parts● Sorry Art
11/2/2013 Systems Level Design Review P14462
Glider Concepts
11/2/2013 Systems Level Design Review P14462
Buy GliderPros:● Pre-Engineered to Fly● Can purchase spare parts● Fast shipping● Modifiable
Cons:● Not guaranteed to fly with
tether● Expensive● Limited modifications
11/2/2013 Systems Level Design Review P14462
Benchmarking (Buy)Plane Price ($)Bixler v1.1 EPO 1400mm - (ARF) 56.70Hobbyking Bixler 2 EPO 1500 mm w/ Brushless Motor, Servos and Optional Flaps (ARF) 69.99AXN Floater-Jet w/ Servo, Motor, ESC (EPO) PNF 65.22Hobbyking Sky Eye EPO FPV/Glider w/ Flaps 2000mm (PNF) 120.33Phoenix 2000 EPO Composite R/C Glider (Plug and Fly) 78.72Airfield Giant Convertible EDF Power RC Glider Almost Ready to Fly 2400mm Wingspan 209.95Airwing RC WingSurfer Airplane Glider 4 Channel Almost Ready to Fly RC 1400mm Wingspan 79.95Airwing RC Bobcat 6 Channel Pusher Plane RC Kit 1143mm Wingspan 149.95TT-62 Alekto Electric Twin-Engine Fiberglass RC Airplane Kit 127.40
Bixler 2
Airwing WingSurfer
Sky Eye
Phoenix 2000
11/2/2013 Systems Level Design Review P14462
Build GliderPros:● Can optimize plane for
tethered flight● Build spare sparts● Resources available
Cons:● Not guaranteed to fly● Requires time to build● Complex● Hard to balance● Could become expensive if
mistakes are made
11/2/2013 Systems Level Design Review P14462
Benchmarking (Build)
● Experimental Airlines tutorials (Photon Model as baseline)
● Custom/interchangable design (wing, fuselage, rudder, etc.)
● ~$80 - $100 (~50%-70% “1 time cost”)
11/2/2013 Systems Level Design Review P14462
Measurement Concepts
11/2/2013 Systems Level Design Review P14462
Force Gauge and Resistance GyroPros:● Innovative
Cons:● Expensive● Complex Data● Internal Turbulence● Requires current line on
tether● Difficult to calibrate● Difficult to set up
11/2/2013 Systems Level Design Review P14462
3 Single-Axis Load CellsPros:● Can repair individual
components● Accurate● Cheap Components
Cons:● Difficult to calibrate● Potential for noisy data
11/2/2013 Systems Level Design Review P14462
3-Axis Load CellPros:● Accurate● Precalibrated● Intuitive Setup
Cons:● Expensive
11/2/2013 Systems Level Design Review P14462
IMU Board and 1-Axis Load CellPros:● Provides accurate position
and orientation data
Cons:● Requires noise filtering● Difficult to calibrate● IMU system would be on
glider
11/2/2013 Systems Level Design Review P14462
Force Gauge and GPSPros:● Digital Data● Accurate force measure
Cons:● Expensive● GPS on glider changes
weight● Difficult to calibrate● Difficult to set up● Innacurate position
11/2/2013 Systems Level Design Review P14462
2 Potentiometers and 1-Axis Load Cell
Pros● Inexpensive● Accurate angles
Cons● Easily breakable● Require precise
machining
11/2/2013 Systems Level Design Review P14462
Pugh Diagram – Base StationCritieria 3 Single Axis Load
Cells3-Axis Load Cells Force Gauge and
GPSForce Gauge and Resistance Gyro
IMU and Load Cell 2 Potentiometers and Load Cell
Clean Appearance + - - + sNumber of Components + + + + -
Setup Time + + - + -Setup Procedure + + - - -
Calibration s - - s +Cost - - - + +
Precision + + - + +Accuracy + + - + +
Spare part Cost - - - - +Spare part Availabilty s s s s s
Safety s s s s sIs Durable s - s - -
Data Acquisition s - - s sWeight s - s - +
Tension Resolution + s s s sDirection Resolution + - - + +
Sum of "+" 8 5 1 7 7Sum of "s" 6 3 5 5 5Sum of "-" 2 8 10 4 4
Total 6 -3 -9 3 3
Datum
Concept Options
11/2/2013 Systems Level Design Review P14462
Pugh Diagram – Base Station
Critieria3 Single Axis Load
Cells3-Axis Load Cells
Force Gauge and GPS
Force Gauge and Resistance Gyro
IMU and Load Cell2 Potentiometers
and Load CellClean Appearance s + - - +
Number of Components + + + + +Setup Time + + + s +
Setup Procedure + + + s -Calibration - - - - -
Cost - - - - -Precision - + - - +Accuracy - - - - +
Spare part Cost - - - - -Spare part Availabilty s s s s s
Safety s s s s sIs Durable + + + + +
Data Acquisition s s - - sWeight - - - - -
Tension Resolution s + s s sDirection Resolution - - - - s
Sum of "+" 4 7 4 2 6Sum of "s" 5 3 3 5 5Sum of "-" 7 6 9 9 5
Total -3 1 -5 -7 1
Concept Options
Datum
11/2/2013 Systems Level Design Review P14462
Top 3 System Concepts
3 Single Axis Load Cell IMU with Single Axis Load Cell 2 Potentiometers with Single Axis Load Cell
11/2/2013 Systems Level Design Review P14462
Data Collection Architecture● Data acquisition: LabVIEW or Arduino● Storage: SD Card or Laptop
Parameter Marginal Value Ideal Value Units
Data Sampling Rate 100 500 Hz
Tension Resolution 0.1 0.01 N
Angular Position Resolution 0.5 0.1 deg
Data Collection Requirements:
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Preliminary Budget Outline
Purchase Price ($)
GliderGlider 100Receiver 60Battery x2 40
Base StationMaterials 100Electronics 100
Total 400Remaining (For Mistakes and Repairs) 100
11/2/2013 Systems Level Design Review P14462
Risk Assessment (Full)
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Risk Assessment (High Risk)
11/2/2013 Systems Level Design Review P14462
Project Planning
11/2/2013 Systems Level Design Review P14462
Project Planning
11/2/2013 Systems Level Design Review P14462
Work Breakdown Structure● Paul: Glider Dynamics & IMU Implementation● Jon: Glider Dynamics & Load Cell
Implementation● Kyle: EDGE & Load Cell Implementation / Base
Station Construction● Matt: Glider Dynamics, Purchased Gliders
Analysis & Potentiometer Implementation● Saj: DOE Research & Team Management● Bill: Built Glider Analysis & DAQ
11/2/2013 Systems Level Design Review P14462
Questions?