Emergency Release Snowboard Bindings

1
Emergency Release Snowboard Bindings
Presenting Jason Wendel Michael Weidner David
Call
University of Utah Department of Mechanical
Engineering
2
Introduction

• Schedule
• Budget
• Benchmarking
• Critical Function Prototype

3
Schedule

• Concept Selection
• Critical Function Prototype
• Up to date

4
Budget

• Sponsorship request letters will be sent out next
  week
• Anticipate many donations in kind
• to be used in manufacturing and testing

5
Miscellaneous Updates

• 50 Concepts generated
• Survey completed
• 100 respondents
• Customer needs determined

6
Benchmarking

• Purpose for our team
• Designs for adaptation

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Benchmarking

• Space Shuttle
• Non-Explosive Release
• Pros
• Minimal force on lock
• Does not need space to release
• Cons
• Complicated to set up
• Needs electrical components

Non-Explosive Release
Restraining Wire
Burn Wire
Restraining Wire Unwound
Burn Wire Broken
Conely,P. Space Vehicle Mechanisms Elements of
successful design. (New York John Wiley and
Sons, 1998), P.285
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Benchmarking

• Camera Tripod Release
• Pros
• Simple Mechanism
• Very Reliable
• Easily Modified
• Cons
• Isnt Strong
• Big and Bulky

Camera Tripod Release
www.shortcourses.com/equipment/tripods/3-qr.htm
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Benchmarking

• Professional Woodworking
• Vise With Quick Release
• Pros
• Reliable
• Simple locking mechanism
• Cons
• Big and bulky
• Locking mechanism

Woodworking Vise
Quick-Release Nut Lock
www.fine-tools.com
10
Benchmarking

• Line Reactor
• 10 Ski Binding
• Pros
• Withstands Loading
• Small Lightweight
• Cons
• Doesnt release on command
• Many complicated parts

Line Reactor 10 Ski Binding
www.getboards.com
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Benchmarking
Burton Quick Disk

• Pros
• Simple concept
• Directly applicable
• Desired function
• Cons
• Boot prevents release
• Releases one binding
• Requires space to operate

www.geardirect.com
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Critical Function Prototype (CFP)

• Description
• Motivation
• Goals
• What we hope to learn

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Critical Function Prototype Description

• Battery powered Shape Memory Alloy (SMA) actuator
• Shape Memory Alloy
• Changes shape at known temperature
• Mechanical latch
• Electrical interface
• Circuitry

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Motivation

• High scoring concepts employ SMA
• SMA activation of device will
• Allow electrical activation of device
• Prevent binding modifications
• Make release universal
• Decrease size, weight
• Allow better seal from snow and water

15
CFP Goals

• Create a working system
• Moves mechanical latch
• Practical for concepts
• Scaled to project
• Promote concept generation
• Benchmarking for the CFP
• Working with SMA

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What We Hope to Learn

• Feasibility
• Limitations
• Theoretical analysis vs. actual

17
Summary

• On Schedule
• Critical Function Prototype
• Sponsorship letters
• Budget
• Benchmarking
• Critical Function Prototype
• Shape Memory Alloy actuator

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Contact Info

• TEAM EMAIL
• ERSNOWBINDING_at_gmail.com