Skipper’s ChairRichard Dzionara-Norsen

Jeffery FlowerdayJonathan Nguyen Kassandra Schlott

Richard Dzionara-Norsen - ME, Customer Contact

Jeffery Flowerday – ME - Scribe

Jonathan Nguyen – ME – EDGE Master

Kassandra Schlott - ISE, Group Leader

Group 14032

Project Description Current State Desired State Stakeholders Customer Requirements Engineering Requirements Project Schedule

Agenda

Two previous revision of the Skipper’s Chair have been designed for disabled individuals to maneuver the Sonar Sailboat under recreational and competitive use. This design easily allows one person to perform the necessary tasks typically allocated for multiple people.

Project Description

Current State - 13032

Seat is adjustable for 90% of populace

Fits in a regulation sonar boat

Has quick release tiller

Ready for competition and daily use

Requires minimal effort from the user

Current State Successes

System weight is too heavy

Installation time is long

Too many custom machined parts

Did not meet boom height requirement

Complicated installation◦ Needed own tool box

Current State Failures

Minimal customized parts

Minimal assembly, installment, and adjustment time

Must have simplified instructions for volunteers

Desired State

Minimal weight without reducing comfort/safety

Materials must be impervious to environmental effects/wear

Maximize Factor of Safety

Desired State Continued

Goals Minimize cost of system Reduce assembly time

◦ 13032 Build time = 30 minutes Assembly time = 15 minutes Adjustment time = 30 minutes

Maintain safety and personal adjustment capabilities

Caitlyn Connolly (Piers Park Sailing)

Richard Ramos Jr. (Aspiring Paralympic Sailor)

Keith Burhams (Expert Sailor)

Primary Stakeholders

Multidisciplinary Senior Design (MSD)

Rochester Institute of Technology (RIT)

Quadriplegic Sailing Community

Adaptive Sailing Volunteers

Secondary Stakeholders

Customer Requirements

Customer Rqmt. #

Description Comments/Status

CR1 Portable chair system for SonarCR2 Seat adjusts in realation to boomCR3 Lower total costCR4 Ease of assembly and adjustmentCR5 Eliminate line cross-over - reliabilityCR6 Increased durabilityCR7 Weight reducedCR8 Mechanical AdvantageCR9 Reduce installation timeCR10 Seat position along rail must be easily adjustableCR11 Ease of UseCR12 Team member ease of use

Top CR’s User friendly

◦ Simplified work instructions◦ Requires minimal effort from user

Ease of install◦ Reduced weight◦ Time◦ Reduce number of pieces

Must be portable

Engineering RequirementsSpecification Number Importance Source Function

Engr. Requirement (Metric)

Unit of Measure

Marginal Value

Ideal Value

Comments/Status

S1 1 CR1 Secure to sonar with non-permanent attachments Binary YesS2 1 CR3 Seat adjustable to boom height Binary YesS3 1 CR9 Hand crank adjustments (aft/bow) InchesS4 1 CR12 Corrosion resistance Binary YesS5 2 CR11 Multiple seat position on rail # >=3 3S6 1 CR7 Minimum FOS of critical elements Binary YesS7 1 CR5 Steps required to release rudder in emergency # <=3 1S8 1 CR12 Full Sonar Capability Binary YesS9 2 CR12 Time required to attach or detach hands seconds <=10 3S10 2 CR10 Full Assembly Time HoursS11 2 CR5 Time to adjust system to new user Minutes 15 - 20 15S12 1 CR4 Reduce number of custom parts #S13 1 CR4 Reduce machining hours HoursS14 1 CR4 Reduce sub-assembly build time Minutes 10 - 15 10S15 2 CR3 Allow room for cushion in seat Binary YesS16 1 CR6 Reliability % >=90 90S17 1 CR12 Hand Crank Gearing RatioS18 2 CR8 Weight reduction lbs 70-100 80S19 2 CR13 Grab Handle at top of seat Binary YesS20 1 CR13 Have enough room for rest of crew Binary YesS21 3 CR12 User Manual Binary Yes

Top ER’s Seat adjustable to boom height

Materials◦ Corrosion resistance◦ Lightweight

Durability

Relationship Matrix

Engineering Requirements0Secure to

sonar with

non-

permanent attachments

Seat adjustable to boom height

Hand crank adjustments (aft/bow)

Corrosion resistance

Multiple

seat

position

on rail

Minimum

FOS of

critical elements

Steps required to release

rudder in

emergenc

y

Full Sonar Capability

Time

required to attach or detach hands

Full Assembly

Time

Time to adjust system to new

user

Reduce

number of

custom

parts

Reduce

machining

hours

Reduce

sub-

assembly build

time

Allow room for cushion in sea

t

Reliability

Hand Crank Gearing

Weight reduction

Grab Handle at

top of

seat

Have enough room for rest of crew

User ManualCustomer Requirements

Portable chair system for Sonar X                                        

Seat adjusts in realation to boom                                          

Lower total cost   X                         X            

Ease of assembly and adjustment                       X X X              

Eliminate line cross-over - reliability             X       X                    

Increased durability                               X          

Weight reduced           X                              

Mechanical Advantage                                   X      

Reduce installation time     X                                    

Seat position along rail must be easily adjustable                   X                      

Ease of Use         X                                

Team member ease of use       X       X X               X   X X X

 Phase Allocation Time Allocated (Days)

Problem Definition 14

*Interview with Caitlyn Connolly

System Design 70

*Divide custom parts (13032) list by redesign type  -minimize parts  -transfer to buy parts  -components to fix

 

Detailed Design 35

Complete Design 14

*Final design customer check-in 1

Complete Design Review (incl. systems integration) 5

Project Schedule

Questions