Adaptive Paddle Board: Final Design Review PREPARED FOR THE CENTRAL CALIFORNIA ADAPTIVE SPORTS CENTER Presented by: The Adaptive Paddle Team [email protected] Sean Yueh [email protected] Alexander Holthaus [email protected] Garrett Holmes [email protected] Garett Jones [email protected] MECHANICAL ENGINEERING DEPARTMENT CALIFORNIA POLYTECHNIC STATE UNIVERSITY SAN LUIS OBISPO FALL 2018 – SPRING 2019 Statement of Disclaimer Since this project is a result of a class assignment, it has been graded and accepted as fulfillment of the course requirements. Acceptance does not imply technical accuracy or reliability. Any use of information in this report is done at the risk of the user. These risks may include catastrophic failure of the device or infringement of patent or copyright laws. California Polytechnic State University at San Luis Obispo and its staff cannot be held liable for any use or misuse of the project. Abstract This Final Design Review (FDR) document outlines the Adaptive Paddle Board senior project, done by four Mechanical Engineering Students at California Polytechnic State University and provides detail on the project and what the team has accomplished. The goal was to create a universally adaptive paddle board that can be used by the Central California Adaptive Sports Center for a wide range of persons with disabilities. This document highlights current research from patents and existing products, details regarding customer specifications, results from concept generation, the manufacturing and testing that went into the final design, and the process taken to get there. Testing has proven the final design to crucial specifications such as cost, reproducibility, and tipability. Contents Statement of Disclaimer .....................................................................................................................2 Contents ............................................................................................................................................ i List of Figures .................................................................................................................................... iv List of Tables ..................................................................................................................................... vi 1 Introduction ...............................................................................................................................1 2 Background ................................................................................................................................1 2.1 Customer Needs ............................................................................................................................ 1 2.2 Existing Designs ............................................................................................................................. 2 2.3 Patent Search ................................................................................................................................ 4 2.3.1 Paddleboard with Removable Seat (US8752492B1) ............................................................. 4 2.3.2 Vertical Bicycle Storage Rack (US20130270201A1) .............................................................. 4 2.3.3 Longitudinally Adjustable Mount for a Snowboard Binding (US20010038182A1) ............... 5 2.3.4 Binding Mounting System for Recreational Board (US20050248129A1) ............................. 5 2.3.5 Adjustable Scope Mounting System (US7543405B1) ........................................................... 6 2.4 Technical Literature ...................................................................................................................... 6 2.4.1 Wheelchair Manufacturers’ Reporting ................................................................................. 7 2.4.2 Wheelchair Buyer’s Guide ..................................................................................................... 7 2.4.3 Medical Case Study ............................................................................................................... 7 2.4.4 Previous Senior Projects ....................................................................................................... 7 2.4.5 Surfboard Foam Discussion ................................................................................................... 8 2.5 Disability Regulations .................................................................................................................... 8 3 Objectives ..................................................................................................................................9 3.1 Formal Problem Statement ........................................................................................................... 9 3.2 Boundary Diagram ........................................................................................................................ 9 3.3 Scope ........................................................................................................................................... 10 4 Concept Design Development ................................................................................................... 12 4.1 Ideation Generation and Development Process ......................................................................... 12 4.1.1 Attachment Frame .............................................................................................................. 12 4.1.2 Anchor Straps ...................................................................................................................... 13 4.1.3 Stabilizing Outriggers .......................................................................................................... 14 4.1.4 Loading Ramp ...................................................................................................................... 14 i 4.2 Design Selection Process ............................................................................................................. 14 4.3 Selected Concept Design ............................................................................................................. 15 4.3.1 Attachment Frame .............................................................................................................. 16 4.3.2 Anchor Straps ...................................................................................................................... 17 4.3.3 Stabilizing Outriggers .......................................................................................................... 17 4.3.4 Loading Ramp ...................................................................................................................... 18 4.4 Preliminary Analyses ................................................................................................................... 19 4.5 Risks and Challenges ................................................................................................................... 20 5 Final Design .............................................................................................................................. 21 5.1 Final Design: Subsystems and Components ............................................................................... 21 5.1.1 Attachment Frame .............................................................................................................. 22 5.1.2 Anchor Straps ...................................................................................................................... 24 5.1.3 Stabilizing Outriggers .......................................................................................................... 26 5.1.4 Loading Ramp ...................................................................................................................... 27 5.2 Safety, Maintenance, and Repair Considerations ....................................................................... 28 5.3 Cost Analysis ............................................................................................................................... 29 6 Manufacturing Plan .................................................................................................................. 29 6.1 Aluminum Frame System ............................................................................................................ 30 6.2 Loading Ramp System ................................................................................................................. 31 6.3 Stabilizing Outrigger System ....................................................................................................... 32 6.3.1 CNC Machining .................................................................................................................... 32 6.3.2 Adhesion ............................................................................................................................. 33 6.3.3 Model Shaping .................................................................................................................... 33 6.3.4 Fiber Glass Reinforcing ........................................................................................................ 34 6.3.5 Strut Insert Installation ....................................................................................................... 37 6.3.6 Gel Coating 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