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Questions tagged [flywheels]

11 questions
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3 answers

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 red one stops. I'm looking for the name of the…
Julian
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6
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4 answers

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 facing a red light after riding down a hill. If…
Gert
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5
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1 answer

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 precession?
Sean
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5
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1 answer

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 damper at one end, to the hydraulic motor. How can…
Firman Azis Rauf
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2
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0 answers

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 probably make a "spoked" type of pattern to the…
BetterSense
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0
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1 answer

Role of the fly-wheel in a fatigue test of a damper

I would like to build a system to carry out a fatigue test of a damper. I am not able to understand the role of the fly-wheel in such a system. The base idea is a crank-shaft mechanism which has a constant angular velocity and moves the damper along…
Kristóf Németh
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Could this flywheel assembly have been safely built in 1960-62?

Reference: This question from Worldbuilding. I'm writing a time travel story set in 1962 and I'm in need of an analogue to Doc Brown's plutonium (or bolt of lightning!). What I settled on for my inventor's 'contraption' was flywheel energy storage.…
ehbowen
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Flywheel design equation (angular speed)

What value of average angular speed (ω avg) should we take while designing the flywheel out of the varying speeds of engine depending on its acceleration. And should we just assume Cf(co-eff. of speed fluctuation) according to our application or how…
Kane
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3 answers

Why no big and slow flywheels for utility-scale energy storage?

The flywheel research I see usually focuses on small, high-speed (thousands of RPM) flywheels, often with an emphasis on transportation-related applications. The largest rotating building in the world weighs 500,000 kg. According to my calculations,…
Phil Loden
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1 answer

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' (in newton-mm-sec), and which is the most relevant…
Mark Besser
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Flywheel effect on Engine speed

Do crankshaft rotate at constant speed in an IC engine for a given RPM after application of flywheel? If not, then how do we get constant speed at vehicle wheel?
Kane
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