Robotics & Control

Intermediate

Angular Acceleration Torque

Torque needed to angularly accelerate a rotating mass.

Formula

\tau = I\alpha

Variables

τTorque (N·m)

IMoment of inertia (kg·m²)

αAngular acceleration (rad/s²)

Example

I=0.2, α=5: τ = 1 N·m

Did You Know?

Sizing a robot's motors starts with the peak torque needed to accelerate its own arm inertia.

robotics torque inertia

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