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  2. Cogging torque - Wikipedia

    en.wikipedia.org/wiki/Cogging_torque

    Cogging torque is an undesirable component for the operation of such a motor. It is especially prominent at lower speeds, with the symptom of jerkiness. Cogging torque results in torque as well as speed ripple; however, at high speed the motor moment of inertia filters out the effect of cogging torque.

  3. Torque ripple - Wikipedia

    en.wikipedia.org/wiki/Torque_ripple

    Torque ripple is an effect seen in many electric motor designs, referring to a periodic increase or decrease in output torque as the motor shaft rotates. It is measured as the difference in maximum and minimum torque over one complete revolution, generally expressed as a percentage.

  4. Direct-drive mechanism - Wikipedia

    en.wikipedia.org/wiki/Direct-drive_mechanism

    Most motors exhibit positional torque ripple known as cogging torque. In high-speed motors, this effect is usually negligible, as the frequency at which it occurs is too high to significantly affect system performance; direct-drive units will suffer more from this phenomenon unless additional inertia is added (i.e. by a flywheel ) or the system ...

  5. Motor constants - Wikipedia

    en.wikipedia.org/wiki/Motor_constants

    The torque on shaft is 0.0053 N⋅m at 2 A because of the assumed radius of the rotor (exactly 1 m). Assuming a different radius would change the linear K v {\displaystyle K_{\text{v}}} but would not change the final torque result.

  6. Reluctance motor - Wikipedia

    en.wikipedia.org/wiki/Reluctance_motor

    Disadvantages include high torque ripple (the difference between maximum and minimum torque during one revolution) when operated at low speed, and noise due to torque ripple. [ 1 ] Until the early twenty-first century, their use was limited by the complexity of designing and controlling them.

  7. Direct-drive sim racing wheel - Wikipedia

    en.wikipedia.org/wiki/Direct-drive_sim_racing_wheel

    Issues, quality, and performance indicators of direct-drive wheels, and of sim racing wheels in general, include detail and fidelity of force feedback, smooth torque transmission, nearly-zero backlash, rotary encoder resolution, clipping, dynamic range, torque ripple, [2] cogging torque, [10] drivers and digital signal processing with control electronics, [2] [11] signal filtering, [8 ...

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    www.aol.com/love-pickles-grillo-valentine-day...

    Gentle reminder to all you love birds out there that Valentine's Day is just around the corner. (Fifteen days if we really want to get specific.)

  9. Synchronous motor - Wikipedia

    en.wikipedia.org/wiki/Synchronous_motor

    This creates torque that pulls the rotor into alignment with the nearest pole of the stator field. At synchronous speed the rotor is thus "locked" to the rotating stator field. This cannot start the motor, so the rotor poles usually have squirrel-cage windings embedded in them, to provide torque below synchronous speed.