TEAM BUNGEE

1
TEAM BUNGEE

• Cameron James
• Jacob Camp
• Ronnie Harris
• Jason McCants
• EMAP 2006
• University of Alabama
• College of Engineering

2
Introduction

• Chemical Biological Engineering Group
• Labs by Chris Brazel, PhD and Sandra Wood, MSE
• Chamber Project Assignment
• Design bungee jump attraction for Lake Nicol
• Bungee Jump
• Physical Mathematical Principles
• Material Design Considerations for Jump Safety
• Marketing Approach
• Economics Feasibility

3
Bungee Math 2 Basic Principles

• 1) Cord Motion spring Hookes Law (1660)
• Cord deformation is proportional to load
• Force k x
• k spring constant x length
• 2) Cord Elasticity Youngs Modulus (1807)
• Ability of cord to regain its original length
• Elastic Modulus Stress/Strain
• Stress Load / Cross sectional Area
• Strain Extension / Length

4
Example Mathematics

• Unstretched cord 20 meters long with an
  elasticity of 50 and a spring constant of 20
  Newtons/meter can hold what force?
• Force (20 N/m) (10 m) 200 Newtons
• Unstretched cord 45 meters long with 75
  elasticity holding a 350N force has what spring
  constant?
• 350 N/m (k) (33.75 m) so k10.37 N/m

5
Bungee Jump Cord - Materials Design

• Commercial bungee cord used
• Designed to users standards
• Elastic strand with rubber core braided fabric
  covering
• 0.62inch 1.6cm diameter
• Cord weighs 14 lbs / 100 ft
• Stretch factor of 100 to 125
• Supports 250-350lbs _at_ 100
• 500-600 jumps/cord typical

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Bungee Jump

• Typical Tower Design
• Anchor into rock cliff or a
• stand alone structure
• 100-150 feet high
• Walk the Plank concept jump over the water
• Day and night jumps offered

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Regulations and Guidelines

• North American Bungee Association (NABA)
• Operate with a safety factor of 5
• cord and related apparatus designed to carry up
  to 5 times the max allowed passenger weight
• Certified jump masters trained operators
• 4 daily inspections
• Allow 5 minutes between jumps for cord to return
  to original length
• Bungee cords replaced weekly (500-600 jumps)

8
Safety Liability

• Three-way safety system
• Full body harness
• Ankle strap system
• Contractor Quality Safety Net
• Limitations
• Minimum Age 18 years
• 16yr with parent signature
• Jumpers sign release form
• Weight range 100-300 lbs
• Maximum 3 Gs

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Into the JAWS of Death

• Additional Thrill Factor
• Jumper walking the plank sees shark fins
  circling below
• Safety net attached to underwater shark apparatus
• JAWS shark emerges to thrill jumper or
  spectators

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Marketing

• Population of the city of Tuscaloosa
• 80,000 without UA students
• 100,000 with UA students (Aug May)
• Add 50,000 for home football games
• University Sports Enthusiasts 18-65 yrs
• Target audience 65 of Tuscaloosa and State of
  Alabama population

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Jump Pricing

• 35 per jump
• 15 for I Walked the Plank shirt
• 10 for a photo of your jump
• 50 package jump, shirt, photo
• Group rates for university student
  organizations (EMAP, BamaBound, etc)

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The Plank

• Open-air restaurant bar overlooking water
• Nautical/Pirate Theme
• Comparable to Treasure Island in Panama City, FL
• Bungee jump visible from restaurant
• Separate mock floating ship serves as spectator
  platform or souvenir/gift shop
• Treasure Island Miniature Golf Course

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THE PIRATE ALABAMA
http//www.sonofthesouth.net/leeFoundation/civil-w
ar/1862/pirate-alabama.htm
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Fixed/Startup Costs

• Cantilever Tower 95,000
• Tower Foundation 10,000
• Installation 6,000
• Tower Operating Equipment 9,000
• Permits and Liability Insurance 30,000
• Annual Renewal 1,000
• Quarterly Inspection 500 (x4)
• License Fee 5,000
• Safety Equipment 2,000
• Mechanical Shark Apparatus 15,000
• Estimated Total 175,000

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Weekly Operational Costs

• Staff (2 shifts, 12 hours/day, 4 days/week)
• Jump Master 1,000
• Jump Operator 500
• Landing/Recovery Operator 350
• Registration/Gift Shop Clerk 350
• Daily Maintenance / Inspection 350
• Replacement Cords (1/week) 1,000
• Power Consumption (motors, flood lights,
  etc) 100
• Estimated Total 4,000

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In Review

• Bungee jump could be a stand-alone project
  operational in 3-4 months
• Can be located on lake, riverfront or land
• Will attract the student population of
  Tuscaloosa, surrounding county state
• Great marketing scheme for the city
• 1862 Rebel Pirate Ship Alabama
• The Plank Restaurant Bar
• I Walked The Plank Souvenirs
• Treasure Island Putt-Putt Golf

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I Walked the Plank
Team
Bungee
Any Questions?
18
Biomechanics virtual modeling
http//www.lifemodeler.com/LM_Manual/T_bungee.htm