Example engineering calculations
Worked, unit-aware calculation worksheets across structural, mechanical, electrical and more. Open any example into your own workspace to edit and reuse. New to Calculeaf? Start with your first worksheet or the examples guide.
59 examples found
Disc Brake Pad Contact Pressure
Average contact pressure between a disc brake pad and rotor from the clamping force and pad contact area.
Vibration Isolation Transmissibility
Force transmissibility ratio for an undamped vibration isolation mount, from the ratio of forcing frequency to natural frequency.
Critical (Whirling) Speed of a Rotating Shaft
Critical whirling speed of a simply supported rotating shaft carrying a central mass, from shaft stiffness and the mass it supports.
Rotating Unbalance Force
Centrifugal force generated by a rotating unbalance mass at a given eccentricity and rotational speed.
Journal Bearing Sommerfeld Number
Dimensionless Sommerfeld number characterizing a hydrodynamic journal bearing's operating condition, from geometry, oil viscosity, speed, and load.
Rolling Bearing Static Load Factor of Safety
Factor of safety against permanent deformation for a rolling-element bearing under static load, from the static load rating and equivalent static load.
Flywheel Moment of Inertia for a Speed Fluctuation
Required flywheel moment of inertia to limit cyclic speed fluctuation to a specified coefficient, given the cyclic energy variation and average speed.
Simple-Harmonic Cam Follower Displacement
Follower displacement at a given cam angle for a simple-harmonic-motion cam rise, from total lift and the rise angle.
Gear Train Mechanical Efficiency
Mechanical efficiency of a gear train from its output power relative to input power.
Bolted Flange Coupling Torque Capacity
Torque capacity of a bolted flange coupling from the allowable shear per bolt, bolt count, and bolt circle radius.
Screw Jack Mechanical Advantage
Theoretical mechanical advantage of a screw jack from the handle length and the screw lead.