What does radius of gyration mean?
Definitions for radius of gyration
ra·dius of gy·ra·tion
This dictionary definitions page includes all the possible meanings, example usage and translations of the word radius of gyration.
Wikipedia
Radius of gyration
Radius of gyration or gyradius of a body about the axis of rotation is defined as the radial distance to a point which would have a moment of inertia the same as the body's actual distribution of mass, if the total mass of the body were concentrated there. Mathematically the radius of gyration is the root mean square distance of the object's parts from either its center of mass or a given axis, depending on the relevant application. It is actually the perpendicular distance from point mass to the axis of rotation. One can represent a trajectory of a moving point as a body. Then radius of gyration can be used to characterize the typical distance travelled by this point. Suppose a body consists of n {\displaystyle n} particles each of mass m {\displaystyle m} . Let r 1 , r 2 , r 3 , … , r n {\displaystyle r_{1},r_{2},r_{3},\dots ,r_{n}} be their perpendicular distances from the axis of rotation. Then, the moment of inertia I {\displaystyle I} of the body about the axis of rotation is I = m 1 r 1 2 + m 2 r 2 2 + ⋯ + m n r n 2 {\displaystyle I=m_{1}r_{1}^{2}+m_{2}r_{2}^{2}+\cdots +m_{n}r_{n}^{2}} If all the masses are the same ( m {\displaystyle m} ), then the moment of inertia is I = m ( r 1 2 + r 2 2 + ⋯ + r n 2 ) {\displaystyle I=m(r_{1}^{2}+r_{2}^{2}+\cdots +r_{n}^{2})} . Since m = M / n {\displaystyle m=M/n} ( M {\displaystyle M} being the total mass of the body), I = M ( r 1 2 + r 2 2 + ⋯ + r n 2 ) / n {\displaystyle I=M(r_{1}^{2}+r_{2}^{2}+\cdots +r_{n}^{2})/n} From the above equations, we have M R g 2 = M ( r 1 2 + r 2 2 + ⋯ + r n 2 ) / n {\displaystyle MR_{g}^{2}=M(r_{1}^{2}+r_{2}^{2}+\cdots +r_{n}^{2})/n} Radius of gyration is the root mean square distance of particles from axis formula R g 2 = ( r 1 2 + r 2 2 + ⋯ + r n 2 ) / n {\displaystyle R_{g}^{2}=(r_{1}^{2}+r_{2}^{2}+\cdots +r_{n}^{2})/n} Therefore, the radius of gyration of a body about a given axis may also be defined as the root mean square distance of the various particles of the body from the axis of rotation. It is also known as a measure of the way in which the mass of a rotating rigid body is distributed about its axis of rotation.
Wikidata
Radius of gyration
Radius of gyration or gyradius is the name of several related measures of the size of an object, a surface, or an ensemble of points. It is calculated as the root mean square distance of the objects' parts from either its center of gravity or a given axis.
Numerology
Chaldean Numerology
The numerical value of radius of gyration in Chaldean Numerology is: 2
Pythagorean Numerology
The numerical value of radius of gyration in Pythagorean Numerology is: 4
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"radius of gyration." Definitions.net. STANDS4 LLC, 2024. Web. 6 Jun 2024. <https://www.definitions.net/definition/radius+of+gyration>.
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