The Radius of Gyration of a Cylinder about the y-axis calculator computes the Radius of Gyration, ry, of a cylinder about the specified axis (y-axis) as defined in the picture.
INSTRUCTIONS: Choose the preferred units and enter the following:
- (R) This is the radius of the solid cylinder
Radius of Gyration: The radius of gyration is returned in meters. However, this can be automatically converted to other length units via the pull-down menu.
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General Info
The Radius of Gyration about a given axis can be expressed in terms of the moment of inertia as:
`r^2 = I_"axis"/m`
This equation is computing specifically the radius of gyration about the x-axis defined in the picture. Because of symmetry of the cylinder, the radius of gyration about the y-axis is the same for the radius of gyration about the point c on the y-axis (`r_"yc"`). 1
Inputs
Where the input to the calculation of the Radius of Gyration (RG) is:
- r = Radius of the Cylinder
author: Carol
See Also
Cylinder (solid) - Radius of Gyration about x-axis
Cylinder - Mass Moment of Inertia About z-axis
- ^ Fundamentals of Engineering. 8th edition, 2nd Revision. National Council of Examiners for Engineering and Surveying (NCEES) - 2001. ISBN 978-1-932613-59-9. pg 61