the inter-schools dragster competition dr jos darling department of mechanical engineering,...
TRANSCRIPT
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The Inter-Schools Dragster Competition
Dr Jos DarlingDepartment of Mechanical Engineering,
University of Bath
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Objectives
• A design and build competition suitable for GCSE level school pupils to illustrate the following– Mass
– Energy
– Friction
– Acceleration
– Practical design and manufacture
– Experimentation
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The Competition
• To design and build a spring propelled dragster to travel as quickly as possible down a 10m track using a ‘standard’ coil extension spring
• Competition was based on an undergraduate project run at Bath for the last ten years.
• The idea was originally developed as part of an Open University Summer School
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The Kit of Parts
• Teams issued with a standard kit of parts which included the following– Standard extension coil spring– Back axle assembly– Fishing line
• Teams design and build their own chassis, back wheels and front axle
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The kit of parts
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Additional parts
• Dragster body• Balsa wood, Lego, carbon fibre fishing rod
• Driven Wheels• CDs, jam jar lids, Coke can bases, card, balsa
• Freewheeling wheels• Lego, Smarties tops, card, balsa, model aircraft
• Tyres• Rubber bands, glass paper, condoms, rubber
balloons
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Competition Rules
• Only power source is standard spring extended by 100mm
• No catapults
• Timing from light beam at start and finish
• Track on Lino floor with plastic covered washing line resting on floor to act as guide
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Typical Designs
• Rear Wheel drive
• Mass approximately 50 gramme
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The competition
• Four local state schools involved• Nine teams of six students competed in
event• Mixed sex teams where possible• Used as teaching aide in pre-GSCE Design
and Technology• Students stayed after school in order to
complete designs
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Timing and Organisation
• Held during Science Week
• Six undergraduate helpers
• Non-threatening university environment
• Local press and web publicity
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The event
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Results
• Seven teams successfully completed course
• Best time for 10m of 2.4 seconds
• 50 students participated
• Prizes– Easter Eggs– Certificates– Book Tokens for Schools
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Prize winners
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Funding
• £1000 pounds provided by Balance Project (thanks)
• Funding for– Kits– Administration– Travel for Schools– Pocket money for undergrad helpers– Prizes
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Feedback and the Future
• Feedback from Schools very positive and complements from public following newspaper publicity
• To be repeated with increased number of schools through University Widening Access activities
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Conclusions
• A practical design and build competition suitable for pre-GCSE school pupils
• Team work and practical engineering
• Non-threatening university environment