Rear Driven Snowmobile for CSC

The goal of the project is to design an effective and fully functional rear driven track for the Clean Snowmobile Challenge Team. This design is to be implemented on the snowmobile for use during the 2020 SAE Clean Snowmobile Competition.

=Problem Definition= Conventional snowmobiles have tracks that are driven from the front causing the top of the tack to be pulled in tension and the bottom of the track to be pushed in compression. The portion of the track in contact with the snow, being in compression, causes losses in efficiency and decreased handling.

Background
Currently there are not any rear driven snowmobiles on the market. This is mainly due to manufacturers wanting to reduce sled weight and simplify designs. Aftermarket rear driven snowmobile prototypes have been made in the past, however their application is mainly for drag racing snowmobiles.

Deliverables
Our teams goal is to design, fabricate and test a rear driven snowmobile while increasing handling, efficiency, performance and maintaining full functionality of a stock snowmobile. Minimal weight addition is desirable.

Specifications
Be able to perform at the same level as stock or better Comply with CSC competition rules Meet sound requirements for National Parks Meet safety regulation

=Design Considerations= Belt Drive
 * Pros
 * Easily adaptable
 * Oil bath not required
 * Cost effective
 * Cons
 * Possible efficiency Losses
 * Relocation of brake
 * Moderate alteration of suspension

Hydro-static Motor
 * Pros
 * Minimal suspension modification
 * Cons
 * Size
 * Price
 * Weight
 * Adaptability

Dual Drive
 * Pros
 * Brake relocation unnecessary
 * Easily adaptable
 * Oil bath not required
 * Cost effective
 * Cons
 * Possible efficiency Losses
 * Moderate alteration of suspension

Electronic Power Transmission
 * Pros
 * Decreased sound output
 * Efficiency
 * Cons
 * Mounting of extra parts adds weight

=Project Learning=

=Final Design=

=Validation=

=Team Members=

=Additional Documentation=

Project Schedule



Meeting Minutes

Presentations



Client Interview