Universal Gold Medal Sailing Seatedge.rit.edu/edge/P13032/public/FinalDocuments... · Boat Handle locks with pedestal clamp Support User Vertical Pedestal + Track Adjust Footrest

ADJUSTABLE UNIVERSAL

GOLD MEDAL SAILING

SEAT

Andrew Sulik

Timothy Slattery

Marion Paredes Pages

Derek Topper

Systems Design Review

1/11/13, 3:00 pm

Agenda

• Meeting Purpose

• Overview of Project

• Confirm Customer Needs & Eng. Specifications

• Review Decomposition of System

• Concept Selection

• Design Proposal

• Design Proposal Review

• Review Project Plan

• Review Risk Assessment

• Conclusions

2

Project Goals

• Make system comfortable and adjustable for multiple

users

• Allow enough room for the use of a jib transfer bench

• Increase and/or maintain the functionality already

available

• Adapt for any C4-5 quadriplegic user such as Richard

Ramos on a 3 person Sonar keel boat and must meet all

IFDS regulations

3

Customer Needs

*1=Most important

4

Customer Need #

Importance Level*1 Description Comments/Status

CN1 1 Designed specifically to fit SONAR sailboat

CN2 1 Adjustable foot rests

CN3 1 Seat Mobility (up/down)

CN4 1 Hand crank Adjustability (up/down)

CN5 1 Mechanical Advantage 6.4x

CN6 1 Corrosion Resistance Powder Coat

CN7 1 Seat Locking mechanism (2 Positions around arc)

CN8 1 Cost $3,000

CN9 1 Allows space for jib transfer bench

CN10 1 Safe system to operate for long periods 4 years minimum

CN11 1 Portable, non-permanent installation no damage to boats

CN12 1 Fits on 1 pallet to ship

CN13 1 Emergency quick release for rudder control

CN14 1 System Controls Rudder

CN15 1 Crank Geometry fits multiple users Product for range of users, ie. Yacht club

CN16 2 System weight

CN17 2 Better Functioning 'Fast Pin' system All fast pin locations

CN18 2 Crew Safety

CN19 2 Enlarge Track Platform

CN20 2 Improved harness

CN21 2 Interchangeable seats

CN22 3 Grab Handle at top of seat

CN23 3 Fit to multiple boats

CN24 3 Easy to assemble & install

Engineering Specs

*1 For importance level 1 is must have, 2 is nice to have, 3 is preference only

5

Engineering Specification

# Importance

*1 Source Specification Unit of

Measure Marginal

Value Ideal Value Comment/Status

ES1 1 CN1, CN11 Secure to Sonar with non-permanent attachments Binary Yes

ES2 1 CN2 Adjustable Foot Rests in 4<

ES3 1 CN3 Seat Adjustment (up/down) in 3<

ES4 1 CN4 Hand Crank Adjustment in 4<

ES5 1 CN5 Percentage Amplification of User Force Input % 640%

ES6 1 CN6 Corrosion resistance Binary Yes Can use environmental chamber to simulate

ES7 1 CN7 Seat locks into position at either end of the chair's travel Binary Yes

ES8 1 CN8 Cost of components manufactured for MSD $ 3000>

ES9 1 CN9 Entire seating system is moved aft from previous iteration in 0< 3<

ES10 1 CN10 Minimum FOS of critical elements found via analysis # 1< 3<

ES11 1 CN12 Volume of dissembled and packed unit in3 74088> 66679> ISO pallet size 42"x42"

ES12 1 CN13 Steps required to release rudder in emergency # 3> 1

ES13 1 CN14 Degree of movement of rudder from centerline of boat degrees 40< 90<

ES14 1 CN14 Backlash in lines controlling rudder in 1> 0.5>

ES15 1 CN15 Distance between hand attachment points in 18±2 18±0.5

ES16 2 CN22 Grab handle(s) to assist seat movement Binary Yes

ES17 2 CN16 Reduction of overall system weight % 0< 10<

ES18 2 CN17 Time required to attach or detach hands s 30< 15<

ES19 2 CN18 System has limited number of sharp corners or edges # 10> 0

ES20 2 CN19 Pinch points created by track platform # 2> 0

ES21 2 CN20 Steps required to release from harness # 3> 1

ES22 3 CN21 System fits multiple seats # 2<

ES23 2 CN11, CN21 Time to fit system in SONAR sailboat minutes 60> 30>

ES24 2 CN11, CN21 Time to adjust system for new user minutes 60> 30>

ES25 2 CN24 Time to assemble system minutes 60> 30>

Functional Decomposition

6

Concept Selection – Pedestal & Seat (1)

7

Concepts

Selection Criteria P12031 Design 1

1 Feasibility 0 0

2 User Safety 0 1

3 User Comfort 0 1

4 Durability 0 1

5 Ease of securing user 0 1

6 Ease of Releasing user 0 1

7 Installation Difficulty 0 1

8 Safety 0 1

9 System Durability 0 1

10 Portability 0 0

11 Adjustability options 0 1

12 Allows for Jib Transfer Bench 0 1

13 Allows use in wide range of

Sonar boats 0 1

14 Stress applied to boat 0 -1

15 Weight 0 -1

16 Ease of Foot Rest Adjustment 0 1

17 Ease of Seat Adjustment 0 1

18 Adjustment Restrictions 0 1

Sum + 's 0 14

Sum 0's 18 2

Sum -'s 0 2

Net Score 0 12

Rank 3 1

Continue? N Y

1 is better than current design, 0 is marginal, -1 is worse than current design

Criteria Design 1

Attach to

Boat Enlarged platform with swivel locks

Support User Vertical Pedestal

Adjust

Footrest Sliding hose clamps

Adjust Seat

Up/down TODD adjustable pedestal

Adjust Seat

forward/aft Square bolt pattern with mounting plate

Allow

Rotation Pedestal mounted

Translate

User Rotation Only

Reduce

Impact Torsion bar with rubber bumpers

Lock User in

Place Pneumatic Disc brake

Secure User 5 point harness

Release User Cam lock


8

Concepts


1 Feasibility 0 1

2 User Safety 0 1

3 User Comfort 0 1

4 Durability 0 1




8 Safety 0 1

9 System Durability 0 1

10 Portability 0 0




Sonar boats 0 0

14 Stress applied to boat 0 0

15 Weight 0 -1


17 Ease of Seat Adjustment 0 1

18 Adjustment Restrictions 0 0

Sum + 's 0 12

Sum 0's 18 5

Sum -'s 0 1

Net Score 0 11

Rank 3 2

Continue? N Y


Criteria Design 2

Attach to

Boat Handle locks with pedestal clamp

Support User Vertical Pedestal + Track

Adjust

Footrest Sliding hose clamps

Adjust Seat

Up/down TODD adjustable pedestal

Adjust Seat

forward/aft

Lightweight spacer plates + Adjustable

bearing mount

Allow

Rotation Square bolt pattern with mounting plate

Translate

User Follow path of track

Reduce

Impact Cam cleats

Lock User in

Place Pneumatic Disc brake

Secure User 5 point harness

Release User Cam lock


9

Concepts


1 Feasibility 0 0

2 User Safety 0 1

3 User Comfort 0 0

4 Durability 0 0


6 Ease of Releasing user 0 -1


8 Safety 0 -1

9 System Durability 0 -1

10 Portability 0 0

11 Adjustability options 0 -1



Sonar boats 0 0

14 Stress applied to boat 0 0

15 Weight 0 0


17 Ease of Seat Adjustment 0 -1

18 Adjustment Restrictions 0 -1

Sum + 's 0 5

Sum 0's 18 7

Sum -'s 0 6

Net Score 0 -1

Rank 3 4

Continue? N N


Criteria Design 3

Attach to

Boat

Handle locks with modified track

platform

Support User Tracks prepindicular to boat

Adjust

Footrest 1" spaced pins

Adjust Seat

Up/down Adjustable track height

Adjust Seat

forward/aft Tracks within chair

Allow

Rotation Chair within a chair

Translate

User Straight across boat

Reduce

Impact Rubber bumpers

Lock User in

Place Cam cleats

Secure User Butterfly harness with velcro lap belt

Release User Velcro + single buckle

Concept Selection – Crank & Tiller (1)

10


1 User Safety 0 1

2 User Comfort 0 1

3 Durability 0 1



6 Safety 0 1

7 Portability 0 0


9 Aesthetics 0 1

10 Feasibility 0 0

11 Ergonomics 0 0

12 Ease of Gear Change 0 0

13 Ease of Crank Adjustment 0 1

14 Weight 0 0

Sum + 's 0 7

Sum 0's 14 7

Sum -'s 0 0

Net Score 0 7

Rank 4 1

Continue? N Y


Design 1

Attach

Hands Detent Pins

Adjust Hand

Crank 1" Pin Spacing

Steer Boat Replicate steering system with minor

modifications. (No hasp fitting)

Provide

Mechanical

Adv

Rubber V-belt

Tension

Lines Dual harken cam cleat system

Enable

emergency

Release

Dual harken cam cleat system

Attach to

Tiller Dual harken cam cleat system


11


1 User Safety 0 1

2 User Comfort 0 1

3 Durability 0 0



6 Safety 0 0

7 Portability 0 0


9 Aesthetics 0 0

10 Feasibility 0 1

11 Ergonomics 0 0



14 Weight 0 0

Sum + 's 0 6

Sum 0's 14 8

Sum -'s 0 0

Net Score 0 6

Rank 4 2

Continue? N Y


Design 2

Attach

Hands Improved Fast Pins

Adjust Hand

Crank 1" Pin Spacing



Provide

Mechanical

Adv

Gate's Carbon Drive

Tension

Lines Dual harken cam cleat system

Enable

emergency

Release

Removable Pin

Attach to

Tiller Tie On


12


1 User Safety 0 1

2 User Comfort 0 1

3 Durability 0 0



6 Safety 0 0

7 Portability 0 0

8 Adjustability options 0 -1

9 Aesthetics 0 0

10 Feasibility 0 1

11 Ergonomics 0 0



14 Weight 0 0

Sum + 's 0 4

Sum 0's 14 9

Sum -'s 0 -1

Net Score 0 3

Rank 4 3

Continue? N N


Design 3

Attach

Hands Set Screw

Adjust Hand

Crank Vertical Motion



Provide

Mechanical

Adv

Rubber V-belt

Tension

Lines Turn buckle

Enable

emergency

Release

Removable Pin

Attach to

Tiller Tie On

Concept Selection Review – Acceptable Designs

13

Crank & Tiller Pedestal & Seat

Criteria Design 1 Design 2 Criteria Design 1 Design 2

Attach

Hands Detent Pins Improved Fast Pins Attach to Boat

Enlarged platform with swivel

locks

Handle locks with pedestal

clamp

Adjust

Hand Crank 1" Pin Spacing 1" Pin Spacing Support User Vertical Pedestal Vertical Pedestal + Track

Steer Boat

Replicate steering system

with minor modifications. (No

hasp fitting)

Replicate steering system

with minor modifications. (No

hasp fitting)

Adjust Footrest Sliding hose clamps Sliding hose clamps

Provide

Mechanical

Adv

Rubber V-belt Gate's Carbon Drive Adjust Seat Up/down TODD adjustable pedestal TODD adjustable pedestal

Tension

Lines

Dual harken cam cleat

system


system Adjust Seat forward/aft

Square bolt pattern with

mounting plate

Lightweight spacer plates +

Adjustable bearing mount

Enable

emergency

Release


system Removable Pin Allow Rotation Pedestal mounted

Square bolt pattern with

mounting plate

Attach to

Tiller


system Tie On Translate User Rotation Only Follow path of track

Reduce Impact Torsion bar with rubber

bumpers Cam cleats

Lock User in Place Pneumatic Disc brake Pneumatic Disc brake

Secure User 5 point harness 5 point harness

Release User Cam lock Cam lock

Proposed Design 1 - Trackless

• Trackless – similar to

freedom 20 design

• Larger metal base plate

• Current pulley system

• Disc brake locking

mechanism

• Adjustable seat and hand

crank

• Rotational dampening

• Cam cleat tiller attachment

• 5 point harness

14

Proposed Design 1 - Trackless

15

Proposed Design 2 – Modified Track

• Enlarged track platform –

similar to current design

• Spacer plates under seat

• Cam cleat locking

mechanism

• Secures in boat similar to

current system

• Rotational Dampening

• Cam cleat tiller system

• 5 point harness

16

Test Plan

• Materials:

• Metal base plate and pedestal

• Simple desk chair with mounted bracket plate

• Flush mount handle locks

• Load Analysis:

• Replicate moment forces on the fiberglass hull

• Replicate forces from the pedestal to the base plate

• Capture results

• Evaluate which areas observe the greatest forces and require

changes

17

Test Plan - Continued

• Goals:

• Build a safe and properly functioning test fixture that does not

rupture or damage any Sonar boat

• Discover major flaws in our planning in order to improve our design

• Go back to our concept selection, and determine the best approach

that is within our capabilities and time constraints

18

Project

Plan

19

20

Project

Plan

Risk Assessment

21

22

Risk Assessment - Continued

23

Risk Assessment - Continued

Questions???

24