P14462: Tethered Glider
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Problem Definition

Table of Contents

Problem Definition Presentation

Problem Definition Presentation

See presentation notes in Planning & Execution

Created - 30 September 2013

Project Summary

P14462 Tethered Glider for High Altitude Wind Energy - Project Summary

P14462 Tethered Glider for High Altitude Wind Energy - Project Summary

Created - 16 September 2013

Customer Requirements (Needs)

Customer Need # 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 3 Clean appearance
CN3 2 Human controlled plane
CN4 2 No special flight skills required
CN5 3 Laptop not required for data collection
CN6 1 Tether tension is measured and recorded during flights
CN7 1 Tether direction is measured and recorded during flights
CN8 3 Videos with accompanying data files of all flight tests (even ones that don’t work)
CN9 1 Able to survive crashes with minor repairs (short downtime)
CN10 1 Maximize tether tension
CN11 2 Vertical and horizontal flight
CN12 1 Identify and compile required glider orientation knowledge for set flight paths
Customer Needs

Created - 2 September 2013

Engineering Requirements (Specifications)

List of Metrics
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
15 Length of Tether >=15 >=30 m
16 Glider Orientation Knowledge Bridle angle Bridle, yaw, attack, & roll angles deg
Engineering Specifications

Created - 2 September 2013

Last Updated - 30 September 2013

House of Quality

Created - 2 September 2013

Last Updated - 30 September 2013

Constraints

The major design constraint is the budget that we have to work with. While there are many ways to measure tension tether and direction only a few are actually viable with the budget given.

Added - 2 September 2013

Project Goals and Key Deliverables

A tethered glider that is capable of three minutes of continuous human controlled flight that measures and records tether tension and direction for data processing.

Added - 2 September 2013


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