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ID : 4751
Moment-of-inertia Formulas
When calculationg the hand's or tool's moment of inertia around the T axis, refer to the moment-of-inertia formulas given below.
1. Cylinder (1) (Axis of rotation = Center axis)
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4. Sphere (Axis of rotation = Center axis)
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2. Cylinder (2) (The axis of rotation passes through the center of gravity.)
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5. Center of gravity not on the axis of rotation.
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3. Rectangular parallelepiped (The axis of rotation passes through the center of gravity.)
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l : Moment of inertia [kgm2] m : Mass [kg] r : Radius [m] a, b, c, L : Length [m] |
Calculation Example of Hand's Moment of Inertia Around the T Axis
Calculation example : When calculating the moment of inertia of a complicated shape, divide it into simple parts as much as possible for easier calculations.
As shown in the figure below, divide the hand into three parts ( (1), (2), (3) ).
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ID : 4751