// multi-utility computation suite · offline · instant · precise
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│ computation suite │
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eng.flywheel-energy Calculator
Calculates flywheel kinetic energy, moment of inertia, and the energy released between maximum and minimum RPM. Flywheel energy storage scales with the square of rotational speed — doubling RPM quadruples stored energy in the same flywheel.
Inputs
Mass
Total mass (kg). Distinct from weight — weight = mass × gravity. Mass is constant; weight varies with location.
Radius
Distance from centre to edge of a circle. Radius = diameter / 2.
Rpm
Reference formula or conversion factor shown for context.
Hollow Ratio
Distance from centre to edge of a circle. Radius = diameter / 2.
Results
kinetic energy stored (kJ)
Energy of motion: KE = ½mv². Scales with the SQUARE of velocity — doubling speed quadruples kinetic energy. This is why crash severity grows so rapidly with speed.
moment of inertia I (kg*m^2)
Sample size or count used in the calculation.
angular velocity (rad/s)
Sample size or count used in the calculation.
tip speed (m/s)
The computed rate of movement or processing.
power at full speed (kW)
The computed rate of movement or processing.
E = 0.5*I*omega^2
Reference formula or conversion factor shown for context.