Single Line Tethered Glider System Level Design Review Team P14462 - - PowerPoint PPT Presentation

Single Line Tethered Glider

Team P14462

System Level Design Review

Jon Erbelding Paul Grossi Sajid Subhani Kyle Ball Matthew Douglas William 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 design Biege: DAQ Grey: Test flight White: 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 Glider

Pros:

• 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) 56.70 Hobbyking Bixler 2 EPO 1500 mm w/ Brushless Motor, Servos and Optional Flaps (ARF) 69.99 AXN Floater-Jet w/ Servo, Motor, ESC (EPO) PNF 65.22 Hobbyking Sky Eye EPO FPV/Glider w/ Flaps 2000mm (PNF) 120.33 Phoenix 2000 EPO Composite R/C Glider (Plug and Fly) 78.72 Airfield Giant Convertible EDF Power RC Glider Almost Ready to Fly 2400mm Wingspan 209.95 Airwing RC WingSurfer Airplane Glider 4 Channel Almost Ready to Fly RC 1400mm Wingspan 79.95 Airwing RC Bobcat 6 Channel Pusher Plane RC Kit 1143mm Wingspan 149.95 TT-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 Glider

Pros:

• 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 Gyro

Pros:

• 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 Cells

Pros:

• 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 Cell

Pros:

• Accurate
• Precalibrated
• Intuitive Setup

Cons:

• Expensive

11/2/2013 Systems Level Design Review P14462

IMU Board and 1-Axis Load Cell

Pros:

• 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 GPS

Pros:

• 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 Station

Critieria 3 Single Axis Load Cells 3-Axis Load Cells Force Gauge and GPS Force Gauge and Resistance Gyro IMU and Load Cell 2 Potentiometers and Load Cell Clean Appearance +

• +

s Number 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 s Is Durable s

• s
• Data Acquisition

s

• s

s Weight s

• s
• +

Tension Resolution + s s s s Direction Resolution +

• +

+ Sum of "+" 8 5 1 7 7 Sum of "s" 6 3 5 5 5 Sum 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

Critieria 3 Single Axis Load Cells 3-Axis Load Cells Force Gauge and GPS Force Gauge and Resistance Gyro IMU and Load Cell 2 Potentiometers and Load Cell Clean 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 s Is Durable + + + + + Data Acquisition s s

• s

Weight

• Tension Resolution

s + s s s Direction Resolution

• s

Sum of "+" 4 7 4 2 6 Sum of "s" 5 3 3 5 5 Sum 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:

11/2/2013 Systems Level Design Review P14462

Preliminary Budget Outline

Purchase Price ($) Glider Glider 100 Receiver 60 Battery x2 40 Base Station Materials 100 Electronics 100 Total 400 Remaining (For Mistakes and Repairs) 100

11/2/2013 Systems Level Design Review P14462

Risk Assessment (Full)

11/2/2013 Systems Level Design Review P14462

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?