Ma tt Brune lle Nic o le Co nwa y Mike K e nne dy K a ty Wurma n
Agenda • T e a m I ntro duc tio n a nd Ro le s • Pro b le m Sta te me nt • Ba c kg ro und I nfo rma tio n • De vic e Use • Pro je c t De live ra b le s • Re q uire me nts • T e st Pla n • Pho to s • Re sults • F uture I mpro ve me nts • Que stio ns
Team Introduction and Roles Member Major Role Matthew Brunelle Mechanical Engineer Engineer Nicole Conway Mechanical Engineer Engineer Michael Kennedy Mechanical Engineer Engineer Katy Wurman Industrial Engineer Project Leader
P14031 Problem Statement • Curre nt Sta te A jib tra nsfe r b e nc h wa s c re a te d in Spring 2013 (P13031) tha t is he a vy, o e xpe nsive , la b o r-inte nsive to a sse mb le , a nd a c c o mmo d a ting o f a stric t size c o nstra int pre se nt a t the time . • De sire d Sta te A jib tra nsfe r syste m tha t e na b le s a jib trimme r to mo ve tra nsve rse ly a c ro ss the o wid th o f the sa ilb o a t, witho ut the use o f the ir le g s o r c o re musc le s. • Pro je c t Go a ls A fully-func tio na l pro to type tha t is: o • lig hte r • c he a pe r • e a sie r to a sse mb le a nd ma nufa c ture • Co nstra ints De sig ne d fo r use with the So na r c la ss o f sa ilb o a ts o Co mple te ly me c ha nic a l so lutio n o De sig ne d fo r e a se o f re pro d uc ib ility o Ca nno t re q uire a lte ra tio n o f the b o a t o r c a use d a ma g e o
What’s a jib? • T he sma lle r tria ng ula r sa il to wa rds the b o w (fro nt) o f the b o a t • I n do wnwind sa iling , it a c ts to pro vide a g re a te r to ta l sa il surfa c e a re a fo r the wind to a c t upo n • I n upwind sa iling , it a c ts a s a n a irfo il, while a lso funne ling mo re a ir o nto the ma insa il, a nd the re fo re he lps with the o ve ra ll fo rwa rd b o a t spe e d.
P14031 Problem Statement • Curre nt Sta te A jib tra nsfe r b e nc h wa s c re a te d in Spring 2013 (P13031) tha t is he a vy, o e xpe nsive , la b o r-inte nsive to a sse mb le , a nd a c c o mmo d a ting o f a stric t size c o nstra int pre se nt a t the time . • De sire d Sta te A jib tra nsfe r syste m tha t e na b le s a jib trimme r to mo ve tra nsve rse ly a c ro ss the o wid th o f the sa ilb o a t, witho ut the use o f the ir le g s o r c o re musc le s. • Pro je c t Go a ls A fully-func tio na l pro to type tha t is: o • lig hte r • c he a pe r • e a sie r to a sse mb le a nd ma nufa c ture • Co nstra ints De sig ne d fo r use with the So na r c la ss o f sa ilb o a ts o Co mple te ly me c ha nic a l so lutio n o De sig ne d fo r e a se o f re pro d uc ib ility o Ca nno t re q uire a lte ra tio n o f the b o a t o r c a use d a ma g e o
P13031: Past Iteration • F o r use with So na r c la ss sa ilb o a t • Allo ws disa b le d pe o ple to sa il • 270 lb we ig ht c a pa c ity • He a vy (125 lb s) • L a b o r inte nsive to a sse mb le Multiple pe o ple re q uire d o • No t ide a l fo r sma ll- sc a le pro duc tio n • Ma ny c usto m pa rts
Device Lifecycle Stored under gangway Installed in Taken out in boat before pieces each use Removed Used in wet immediately environment after sailing
Additional Project Deliverables • F unc tio na l jib tra nsfe r syste m tha t me e ts the c usto me r’ s re q uire me nts • De ta ile d de sig n pla ns fo r ma nufa c turing • I nsta lla tio n a nd a sse mb ly instruc tio ns • Use r ma nua l fo r pro pe r de vic e use
Stakeholders • Ada ptive sa iling pro g ra ms/ c e nte rs • Sta ff a nd vo lunte e rs • Disa b le d sa ilo rs o r po te ntia l sa ilo rs • RI T • MSD te a m
Use Scenarios Considered • At Pie rs Pa rk, yo ung e st use rs usua lly 18-20 yrs o ld • T ypic a l use rs ha ve : o One -side d we a kne ss • Stro ke • T ra uma tic b ra in injury • Spina l injury o L imite d c o re stre ng th • Ma y ne e d se c ure ha rne ss o Hig h-func tio ning q ua driple g ic via piersparksailing.org • Still ha ve so me g rip stre ng th o Ab ility to b e use d in c o njunc tio n with e xisting sta b ility b a r
Customer Requirements Importance Scale: 1 = High Priority, 2 = Medium Priority, 3 = Low Priority
Engineering Requirements
Test Plan Summary
CAD without seat
Securing Device – View Under Deck
In-Boat Photos
Starboard Side
Starboard Side 2
Aerial View
Chair Movement - Above
Chair Movement - Above
Chair Movement - Above
Chair Movement - Above
Chair Movement - Above
Chair Movement - Above
Chair Movement - Above
Results A de sig n tha t: A de sig n tha t inc lude s: • I s 59% lig hte r • De ta ile d BOM • 79% le ss e xpe nsive • De ta ile d dra wing s • I s sig nific a ntly e a sie r to • E a sy-to -fo llo w b uild b uild instruc tio ns • Re q uire s o nly o ne pa rt to b e ma c hine d • E a sy-to -fo llo w a sse mb ly • I s 50% q uic ke r to insta ll instruc tio ns into the b o a t, a nd • All o f the se a re fre e ly re q uire s o nly o ne a c c e ssib le to the inc lude d to o l to do this pub lic • I s mo re c o mpa tib le with a sa lt wa te r e nviro nme nt
Future Improvements • F urthe r re duc e c o st • E limina te the ma c hine d pa rt (a na lyze a nd re -de sig n the b ra king / lo c king me c ha nism) • Ana lyze the e xa c t spe c trum o f disa b ilitie s tha t use rs ma y ha ve in o rde r to a c c o unt fo r spe c ific e rg o no mic c ha ng e s a nd a ddre ss e a c h disa b ility in the mo st e ffic ie nt wa y po ssib le • I nc o rpo ra te a dditio na l mo ve me nt a ssists to de vic e
What’s Next? • Ga te Re vie w July 7 th : Pre se nt a t 7 th • Wo rld Co ng re ss o f Bio me c ha nic s in Bo sto n, MA • July 9 th : De live r to c usto me r – Pie rs Pa rk Sa iling Ce nte r
Thank you! T o K a te L e ipo ld, E liza b e th De Ba rto lo , K e ith Burha ns, Ca itlyn Ridg e ly, Pie rs Pa rk Sa iling Ce nte r, a nd RI T Se nio r De sig n
Questions? T ha nks fo r c o ming !
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