Torque Formula:
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Definition: This calculator determines the torque required to achieve a certain angular acceleration for a given moment of inertia.
Purpose: It helps engineers and physicists calculate the rotational force needed in mechanical systems.
The calculator uses the formula:
Where:
Explanation: The moment of inertia represents resistance to angular acceleration, and torque is the rotational equivalent of force.
Details: Proper torque calculation ensures motors and mechanical systems are properly sized for desired acceleration rates.
Tips: Enter the moment of inertia in kg·m² and desired angular acceleration in radians/s². All values must be > 0.
Q1: How do I find moment of inertia?
A: For simple shapes, use standard formulas. For complex objects, calculate or measure using specialized equipment.
Q2: What's a typical angular acceleration value?
A: This varies widely by application - from fractions of rad/s² for large machinery to thousands for precision instruments.
Q3: Does this include friction or load torque?
A: No, this calculates only acceleration torque. Add friction and load torques separately for total required torque.
Q4: Can I use this for deceleration?
A: Yes, use negative acceleration values for deceleration scenarios.
Q5: How does this relate to motor selection?
A: The calculated torque helps determine the minimum torque rating needed for your motor.