airbags: for safer cycling ryan mott october 22, 2014

Download Airbags: for safer cycling Ryan Mott October 22, 2014

Post on 30-Dec-2015

212 views

Category:

Documents

0 download

Embed Size (px)

TRANSCRIPT

PowerPoint Presentation

Airbags: for safer cyclingRyan Mott

October 22, 2014Ryan Mott,

Junior Mech. Engr. major

with HPVT

(purpose)

1OverviewPurpose:

Overview:Needs: Why research cyclist safety and airbagsMethodology: How research cyclist safety and airbags

Proposing the research of making bicyclists safer from injury by adapting airbags to human powered vehiclesPurpose is to propose the research of airbags and

how much bicyclists could be made safer from injury

by adapting airbags to various human powered vehicles

Today I will be discussing

Firstly Why the Human Powered Vehicle team wants to research airbags bike safety

Then, what methodology will I follow in my research to find out how much cyclist safety can be improved with airbags

(What brings me to topic of HPV safety)2Human Powered Vehicle design competition/raceTypes of human powered vehicles:Upright RecumbentMay include RPS (roll protection system)May include fairing (aerodynamic shell)Innovation competitionEmphasis: Safety

Source: http://www.wpclipart.com/recreation/cycling/bicycles_2/recumbent_bike.png.html

Source: 2014 HPVC photo by GCC students (\\grover\orgs\ASME\2013_HPVC\PHOTO\HPV 2013 Pictures Each Team)Why cyclist safety: Human Powered Vehicle ChallengeWhat brings me to topic of cyclists safety:

American Society of Mechanical Engineers created annual design competitions for engineering studentsEngineering students design and produce a human powered vehicle for race

Human Powered Vehicle a broad term for what it sounds like: vehicles powered by their rider

Not only upright we are familiar withmay be recumbent, Vehicles in this event include RPS,

also aerodynamic shell called a fairing (vehicles sometimes known as velomobile)

One event of the competition is to design an innovative feature for the bike

Competition particularly interested on innovative features to improve safety My hope here is to further research and development by Grove City College engineering students which will in turn further the state of the art of bicycling technology.

(Safety of riding bicycles affects perception)

3Why cyclist safety: Risks of CyclingAutomobile collisions726 fatalities, 201249,000 injuries Most common crash: Bike hits side of turning carOther accidentsFallsFaired vehicles: collide after fall

Source: http://www.cyclelicio.us/labels/safety.html

Six most Frequent Sources of InjuryPercentHit by car29Fell17Source: http://www.pedbikeinfo.org/whoweare.cfmPoor perception discourages using cycling for regular transportationPrimary risks of cycling include:

Automobile accidents

2012, 726 killed by car, 2.1% of people who died in motor vehicle accidents were riding vehicle without airbags

Accidents with cars caused an additional 49,000 injuries

I spoke with professor of mechanical engineering and avid cyclist about most common crashBike hits car turning in front of path

Second most common cycling accidentsFalls, bike falls over causing injuries such as broken collarbone on impact with ground

When vehicle with a fairing falls it will continue to skid, risking injury from both impact with ground and if bike slides perhaps canopy first into a building

(Existing technologies to protect riders include helmets)4

HelmetWearable airbagsHarnessRPS (roll protection system)Fairing

Why cyclist safety: Existing technologiesExisting technologies:Bicycle Helmet to protect the riders headGenerally only protection for uprights

Though a few businesses produce wearable airbags to protect torso, head, or neck if thrown from vehicle

In bikes for HPVC, Harness preventing being thrown from vehicle

and RPS

The fairing also protects in both falls and collisions

(Can these technologies be improved upon with airbags?)

5Absorb high impactFrontal CollisionDistribute/Cushion low impactRollover ProtectionShield from debris/abrasionWhy cyclist safety: Why Airbags

Source: http://www.dsf.my/wp-content/uploads/2014/06/airbag3.png

Source: http://thecarseatlady.files.wordpress.com/2010/05/toyotalandcruisersideairbags.jpg?w=600&h=336Airbags used effectively to Absorb momentum in crash

Most important in Frontal collision

Airbags can be used Distribute/Cushion smaller load

Protect Rollover

Shield from debris and abrasion

(Now let us move to process for my research)

6Research MethodologyExisting airbag usesBike crash and injury typesUser perceptionBike Airbag protectionBike Airbag designSociety of Automotive EngineersAutomotive Vehicle SafetyHonda motorcycle airbagsMethodology for research

Firstly, regarding airbags,What types of airbags exist? What crashes do they protect? How do they work? What are challenges of using using them?

SAE has library of technical journals

Automotive Vehicle Safety, by Barbara and George Peters

View automobile manufacturers websites and research where available

(next, regarding cycling)

7Research MethodologyExisting airbag usesBike crash and injury typesUser perceptionBike Airbag protectionBike Airbag designBlogs, e.g.bentrideronline.comNews articlesDr. ArchibaldNHTSA Traffic FactsPBICCrash accountsSociety of Automotive EngineersAutomotive Vehicle SafetyHonda motorcycle airbagsThen, regarding cyclingHow are cyclists injured in bicycle crashes, particularly riders of recumbents with roll protection systems and/or aerodynamic fairings?

National Highway Transportation Safety Administration

Pedestrian and Bicycle Information Center

No faired vehicle crash tests, soIndividual Records of velomobile crashesAlso of interest is discovering whether cyclists believe airbags would be effective enough that they would use bicycles equipped with airbags?

Blogs such as bentrideronline.com

News articles

Experts such as Dr. Archibald, the professor I mentioned earlier

(Bringing these two topics together)

8Research MethodologyExisting airbag usesBike crash and injury typesUser perceptionBike Airbag protectionBike Airbag designBlogs, e.g.bentrideronline.comNews articleDr. ArchibaldNHTSA Traffic FactsPBICCrash accountsSociety of Automotive EngineersAutomotive Vehicle SafetyHonda motorcycle airbagsCompeting safety featuresBringing these two topics together

In which bicycle crashes can the rider be protected against injury with airbags and which airbag systems would effectively prevent rider injury?How would airbags protect Upright vs. recumbent vs. RPS-equipped vs. fully fairedWhat types of collisions, such as frontal collision and wipeout, are best protected against

How do current safety features fall short for certain roles in safety that airbags could improve?This research will hopefully lead to design of airbags which can perform those roles

(As research continues, these sources will lead to further searches)

9Research MethodologyExisting airbag usesBike crash and injury typesUser perceptionBike Airbag protectionBike Airbag designBlogs, e.g.bentrideronline.comNews articleDr. ArchibaldNHTSA Traffic FactsPBICCrash accountsSociety of Automotive EngineersAutomotive Vehicle SafetyHonda motorcycle airbagsCompeting safety featuresAs research continues, will lead to other sourcesNot an exhaustive list here

(To review, the need for research)10Conclusion:Needs:Risks of cycling, causing injury and poor perceptionHuman Powered Vehicle ChallengeRecommendation:Current airbags: types, target, design, challengesRisks of cyclingPublic perception of safetyFor what purposes could airbags be adaptedHow to design an airbag to suite these purposesTo review,Needs for research into bike safety

Risks of cycling, leading to injury and poor perception

Thus the Human Powered Vehicle Challenge encouraging innovations for safety, and airbags

RecommendationStudy current airbags: type, target, design, risks

Study risks of cycling and

Publics perception of safety

Study for what purposes could airbags be adapted

Study how to design an airbag to suit these purposes

(Thank you for time)11