Single Line Tethered Glideredge.rit.edu/edge/P14462/public/FinalDocuments... · energy •3 Different Methods • Simple Kite • Crosswind Powered Kite • Drag Powered Kite •

Kyle Ball

Matthew Douglas

William Charlock

Single Line Tethered Glider

Jon Erbelding

Paul Grossi

Sajid Subhani

9/9/2013 Problem Definition Presentation P14462

• Team introduction

• Problem definition

• Private and academic development

• Customer needs

• Engineering requirements

• Timeline moving forward

Agenda


Team Introduction

Team Member Role

Sajid Subhani Industrial Eng / Team Lead

Kyle Ball Mech Eng

Matthew Douglas Mech Eng

William Charlock Mech Eng

Jon Erbelding Mech Eng

Paul Grossi Mech Eng

MSD Staff Role

Ed Hanzlik Team Guide

Art North Team Guide

Mario Gomes Customer


• 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/record tether tension & position

• Understand the influential parameters for sustained, tethered, unpowered flight

Problem Definition

Base

Station

Glider

Tether

Operator w/

controller


• Ampyx Power

• Tethered Glider

• Ground power generation

• Figure-8 pattern

• Capable of generating 850kW

Private Development


• Makani Power

• Tethered Glider

• Airborne wind turbines

• Circular pattern

• Tested 30kW; Goal of 600kW

Private Development


• Loyd

• 1980 Paper outlining how to harness high altitude wind energy

• 3 Different Methods

• Simple Kite

• Crosswind Powered Kite

• Drag Powered Kite

• Uses turbines on kite rather than a ground based generator

Academic Papers


Academic Papers

Three axis load cell system created by Lansdorp et al.Image taken

from [Lansdorp 2007].

Lansdorp

• Two Different Arrays of Kites

• Pumping Mill

• Laddermill

• Created a system to measure the tension magnitude and direction using 3D load cell assembly

• Basis for our system


Donnelly

• Fighter Kites

• Theoretical model to predict motion of fighter kite

• Created a method to control the fighter kite motion

• Created an experimental rig with generator and variable tether length similar to Lansdorp’s.

Academic Papers

Three axis load cell allowing for variable tether length

created by Chris Donnelley. Image taken from [Donnelly

2013].


Customer Needs CN # Importance Description

CN1 1 Tethered glider system (with electric prop assist for launching) that demonstrates at least 3 minutes of continuous circular flight path with taunt tether.

CN2 1 Human controlled plane

CN3 1 No special flight skills required

CN4 2 Laptop not required for data collection

CN5 1 Tether tension is measured and recorded during flights

CN6 1 Tether direction is measured and recorded during flights

CN7 1 Videos with accompanying data files of all flight tests

CN8 1 Robust plane design

CN9 1 Maximize tether tension

CN10 2 Vertical and horizontal flight

CN11 1 Obtain data that can be compared to Matlab simulation

CN12 2 Reasonable plane size


Engineering Requirements Metric No. Metric Marginal Value Ideal Value Units

1 Wingspan <=1.5 <1 m

2 Weight <=6 <=4 lbs

3 System Cost <500 $

4 Length of Looping Flight >2 >=3 min

5 Resolution of Tension Data <=0.1 <=0.01 N

6 Resolution of Angular Position Data <=0.5 <=0.1 deg

7 Typical Repair Time 5 3 min

8 Data Sampling Rate >=100 >=500 Hz

9 Minimal Operational Wind Speed at Ground Level 10 5 mph

10 Maximum Operational Wind Speed at Ground Level 20 40 mph

11 Safe for User and Observer Yes Yes Binary

12 Number of Looping Trials Demonstrated >=25 >=30 Integer

13 Training Time (1st Time) <30 <20 min

14 Number of Left Right Horizontal Trials >=25 >=30 Integer


House of Quality Engineering Metrics Customer Perception

Customer Requirements Cu

stom

er W

eigh

ts

Win

gsp

an

We

igh

t

Syste

m C

ost

Le

ng

th o

f L

oo

pin

g F

ligh

t

Re

so

lutio

n o

f T

en

sio

n D

ata

Re

so

lutio

n o

f A

ng

ula

r P

ositi

on

Da

ta

Typ

ica

l Re

pa

ir T

ime

Da

ta S

am

plin

g R

ate

Min

ima

l Op

era

tion

al W

ind

Sp

ee

d a

t G

rou

nd

Le

ve

l M

axim

um

Op

era

tion

al W

ind

Sp

ee

d a

t

Gro

un

d L

eve

l S

afe

fo

r U

se

r a

nd

Ob

se

rve

r

Nu

mb

er

of L

oo

pin

g T

ria

ls D

em

on

str

ate

d

Tra

inin

g T

ime

(1

st T

ime

)

Nu

mb

er

of L

eft R

igh

t H

orizo

nta

l Tria

ls

1 Tethered glider system (with electric prop assist for launching) 1 x x

2 Human controlled plane 1 x x

3 No special flight skills required 1 x

4 Laptop not required for data collection 2 x x x

5 Tether tension is measured and recorded during flights 1 x x

6 Tether direction is measured and recorded during flights 1 x x

7 Videos with accompanying data files of all flight tests (even 1 x x

8 Robust plane design 1 x x x x

9 Maximize tether tension 1 x

10 Verticle and horizontal flight 2 x x

11 Obtain data that can be compared with Matlab simulation 1 x x x

12 Reasonable plane size 2 x x x x

Technical Targets (Specifications)

<=

1.5

(m

)

<=

6 (

lbs)

<500 (

$)

>=

2 (

min

)

<=

0.1

(N

)

<=

0.5

(deg

)

5 (

min

)

>=

100 (

Hz)

10 (

mph)

20 (

mph)

Yes

(bin

ary)

>=

25 (

inte

ger

)

<30 (

min

)

>=

25 (

inte

ger

)


• Phase 1 (wk 1-3) - COMPLETE!

• Define/understand problem definition

• Research similar projects

• Organize as a team

• Phase 2 (wk 4-6) - In progress

• Learn to fly

• Research production load cells & gliders

• Identify/understand critical engineering theory

Timeline


• Phase 3 (wk 7-9)

• Determine glider design

• If building glider from scratch

• Identify airfoil types, materials, control/communication features

• Develop theoretical simulation of flight

• Phase 4 (wk 10-13)

• Refine glider design

• Refine theoretical simulations

• Phase 5 (wk 14-15)

• Order materials

Timeline


Using Asana


• Team introduction

• Problem definition

• Private and academic development

• Customer needs

• Engineering requirements

• Timeline moving forward

Summary


• Ampyx Power. http://www.ampyxpower.com/

• Makani Power. http://www.makanipower.com/home/

• Loyd, Miles L. “Crosswind Kite Power.” Journal of Energy 4.3 (1980): 106–111.

Print.

• Lansdorp, Bas. “Comparison of Concepts for High-altitude Wind Energy

Generation with Ground Based Generator.” Proceedings of the NRE 2005

Conference,Beijing, (2005): 1–9. Web. 17 Feb. 2011.

• Donnelly, Christopher. “Dynamics and control of a single-line maneuverable

kite.” Rochester Institute of Technology. (2013).

References


Questions?
