- #1
cameron1
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Good afternoon and thanks for reading. I have been in a discussion with a friend and we are trying to get to the bottom of it. It all started when looking at overbalanced wheels and shifting mass wheels. I know that they will not turn themselves, but do they have a negative torque applying to them or is it totally neutral?
I have a question regarding the energy to keep a wheel turning, specifically a shifting mass wheel compared to a wheel of identical mass without shifting weights.
I understand the weight and diameter and placement of the weight of a wheel is needed to determine how much power is required to accelerate it, but I am trying to determine if there is a difference in the amount of energy input needed to keep a shifting mass wheel turning once it is rotating. I know at a point centrifugal forces start to apply, but for this question, I am focusing on a very slow rpm so that the only force to overcome is gravity and the friction of the bearings.
My thought was since gravity is conservative and it is a wheel, both wheels would require the same amount of energy to turn regardless if the wheel was a solid wheel or if it had shifting masses.
Any guidance here would be great.
Thanks.
Cameron
I have a question regarding the energy to keep a wheel turning, specifically a shifting mass wheel compared to a wheel of identical mass without shifting weights.
I understand the weight and diameter and placement of the weight of a wheel is needed to determine how much power is required to accelerate it, but I am trying to determine if there is a difference in the amount of energy input needed to keep a shifting mass wheel turning once it is rotating. I know at a point centrifugal forces start to apply, but for this question, I am focusing on a very slow rpm so that the only force to overcome is gravity and the friction of the bearings.
My thought was since gravity is conservative and it is a wheel, both wheels would require the same amount of energy to turn regardless if the wheel was a solid wheel or if it had shifting masses.
Any guidance here would be great.
Thanks.
Cameron
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