FitSki Lorielle 1/14/2019

Design Team Project Sponsor: Dr. Mark Richter, MAX Mobility Faculty Advisor: Dr. Paul King, Vanderbilt University Group Members: Lorielle Alter BME Cory Gerken ME Lauren Mitchell CompE Nick Pilkington ME Katy Serowka BME Lorielle 1/14/2019

Current Design - Cage Cory 1/14/2019

Current Design – Foot Restraint Nick Foot Restraint 1/14/2019

Current Design Nick 1/14/2019

Design Problem Flaws in the Current Design Safety Issues Back Injuries Ankle/Leg Injuries Hardware Issues Poor Interface Foot Restraints Comfort Issues No Adjustability High Impact Chafing Lorielle 1/14/2019

Current FitSki in Action Cory 1/14/2019

Design Goals To redesign the current FitSki incorporating four major components: Enhanced safety for the skier Reduction of the shock loading on the skier Improvement of the interfacing of the FitSki with the board surface Increased seating comfort Cory 1/14/2019

Costs Estimated Total $1000 Item Cost Range Quantity Estimate Approx. Cost Per Item Aluminum Tubing $2-$7 per foot 20-30 feet $125 Shock Absorbers $100-$300 2 $400 Wakeboard $0 (donated) $0 Professional Welding ??? Mock-Up Costs $45 1 Miscellaneous $200 Estimated Total $1000 Nick 1/14/2019

Background Adaptive water skiing has grown into a popular recreational activity for people with disabilities who experience an increased quality of life when they can be involved in physically active recreational activities. In the Healthy People 2010 report there is a strong emphasis on the need for physical activity for all people because of its close relationship to health and well being. Enhancing the accessibility and safety of outdoor recreation activities, such as water skiing, for people with disabilities will ensure that they have access to all of the health benefits that a physically active lifestyle provides. Project Website: www.bme.vanderbilt.edu/srdesign/2005/group5 Katy 1/14/2019

Target Users Physically Disabled Persons Nashville Users ~ 25-35 All who desire the freedom and excitement that able-bodied skiers enjoy but cannot ski using traditional equipment due to a physical impairment Includes those paralyzed from waist down, chest down, and even neck down Nashville Users ~ 25-35 Katy have worked and consulted with people of different levels of impairment Russell-paralyzed from waist down Rocky-has no hamstrings, calves or butt muscles but can walk with use of only quadriceps 1/14/2019

Quality Function Diagram Katy 1/14/2019

Safety and Performance Foot Restraint Velcro Molded flexible rubber Shock Absorbers Options: Air, Coil Springs, Oil (dampening) Concerns Loading Capabilities Tune-ability Durability/Corrosion Resistance Height Of User Above Board higher position=increased performance + decreased stability lower position=decreased performance + increased stability Seat Options Personalized molded seat Adjustable/universal seat design Nick 1/14/2019

Current Work Website Update Frame Design Modeled in SolidWorks 2nd iteration of design mock-up Lauren 1/14/2019

Future Work SolidWorks model completion Research machine shops to have it made or begin construction ourselves for a first working prototype Website updates Future testing Lauren Later add physical construction beginning 1/14/2019

Conclusions Witnessed first-hand the poor interface, shock loading, and the sores from the current seat A new design is needed Focus on Wakeboard Lauren 1/14/2019