Variable: | Description: | Equation: |
---|---|---|
Push time (s) | Time from the start of positive torque to the stop of positive torque for an individual push. | tend(i) - tstart(i) |
Cycle time (s) | Time from the start of positive torque to the next start of positive torque. | tend(i) − tend(i − 1) |
Contact angle (rad) | Angle at the end of a push minus the angle at the start. | Øend(i) − Østart(i) |
Fpeak (N) | 3d peak force during the push phase | Maxstart : end(Fx2 + Fy2 + Fz2)0.5 |
Mean Power/push (W) | The mean power during the push phase. | Meanstart : end(Tz • Δ Ø) |
Work/push (J) | The power integrated over the duration of the push. | ∑start : end(Tz • Δ Ø) |
Frequency (push/min) | Pushes per minute. | Npushes/Δ t |
Mean power/minute (W) | The mean total (unilateral) power (Tz*Angular velocity) during a complete series of cycles in a minute multiplied by 2. | 2 • (∑start(i) : start(n)(Tz • Δ Ø)) |