Background:
This project will look at the potential to develop a new long distance sled
like those used in the Iditarod (see picture, from
http://reshaequip.com/products/resha_sleds.html ). We are working with an experienced trainer
and musher who believe that the potential exists to improve on current designs.
The focus in this project would be on the understanding the biomechanics of the
dog team and making sure that both efficiency is improved and durability is
maintained. Some important aspects of the design include the ability of
composites to perform at extremes of temperature, the sliding resistance of the
metal matrix composite runner materials used in dog sleds, and the overall
impact of weight on the total performance of the racer.
This is a clean sheet project which will start with a report on the current state of the art, and then a set of performance specifications and then moving quickly toward the build and test. This is not a paper exercise however. If your concept can be sold, and the sled tested, there is a chance it could run in the Iditarod. The idea of seeing your sled on the video feed moving across the tundra will appeal to some students, to others it will just generate fear. Look at this project only if you want to become passionate about the project, otherwise we are better off waiting until the right group comes along.
Milestones
Ø September 15, 2006 - Proposal of milestones
Ø September 19, 2006 - Information package on current designs
Ø September 26, 2006 - Analysis of constraints, objectives, and requirements
Ø October 12, 2006 - Web page up and running
Ø October 19, 2006 - Initial drawing package including:
1. Basic dimensions and shape
2. List of possible materials
3. Vendor list
4. Sketch of sled
Ø October 26, 2006 - Manufacturing process review for dog sled production
Ø November 7, 2006 - Milestone review
Ø November 17, 2006 - Detailed drawing package including:
1. Runner design
2. Frame design
3. Cargo bed, foot boards, brush bow, handle, and sled bag design
4. Detailed sketch of sled
5. Steering design
6. Material selection of components
7. Vender selection
Ø December 14, 2006 - Molds and/or jigs complete
Ø December 15, 2006 - Design complete
- Proposal for modified milestones and initial deliverables: September 15, 2006
- Review of current state of the art, including materials, design variation, target weights and other performance criteria: September 19, 2006
- Design criteria for sled, temperature range, estimated loads, durability criteria: September 26, 2006
- First web page goes live with introductory page and menu on left. Page must include resumes, individual photos and milestones: October 12, 2006, 2 pm.
- Drawing package for initial sled design with materials list and sourcing for runners and other vended parts: October 19, 2006
- Manufacturing process review -- processes and techniques with at least three alternatives for sled production: October 26, 2006
- Milestone review: November 7, 2006
- Molds or jigs complete if required: November 30, 2006
- Draft Midterm Report: December 5, 2006
- Lab Cleanup: Maine Day, May 2, 2007
- Open House -- Review of Projects, May 3, 2007