Questions tagged [flywheels]

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MSC Adams: “angular kinetic energy” vs “angular momentum about a center of mass”: which is the most relevant measure of the flywheel's storage?

MSC Adams produces several different measures of a rotating body. In a flywheel, what is the difference between 'angular kinetic energy' (in newton-mm) vs 'angular momentum about the center of mass' (...
2
votes
0answers
49 views

Optimum spoke shape for wheels made of solid material

Currently I am designing a bicycle sprocket to be laser-cut out of 3mm steel. Steel is heavy, so I want to make some lightening cut-outs, and I want to optimize the shape of the cutouts. I will ...
6
votes
3answers
1k views

What do you call a mechanism where rotation is transfered in one direction only?

I have the following to wheels that rotate on the same axis: Assuming that they are stuck together, if I rotate the green one the red one rotates at the same speed and when I stop the green one the ...
5
votes
1answer
848 views

Calculate Forces on a Flywheel

I am working on a flywheel currently, and I was wondering what is the force needed to recenter the flywheel when it is spinning and it is nudged slightly off axis? Is it related to gyroscopic ...
5
votes
1answer
225 views

Balancing flywheel and coupling shaft at home

I am rebuilding a mini soil compactor roller. I replaced the old 8 hp Kubota diesel engine unit with a new Dongfeng unit. I want to weld the coupling shaft, which is built from 2" pipe with rubber ...
5
votes
4answers
895 views

What are the technical obstacles for using flywheel-based regenerative braking on bicycles?

Is it possible to convert the energy you would normally lose when braking your bicycle to rotational energy by attaching an extra wheel which would start to rotate once you use your brakes? E.g., when ...