moment of inertia


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Related to moment of inertia: Radius of gyration, Area moment of inertia

moment of inertia

n. pl. moments of inertia
A measure of a body's resistance to angular acceleration, equal to:
a. The product of the mass of a particle and the square of its distance from an axis of rotation.
b. The sum of the products of each mass element of a body multiplied by the square of its distance from an axis.
c. The sum of the products of each element of an area multiplied by the square of its distance from a coplanar axis.

moment of inertia

n
(General Physics) the tendency of a body to resist angular acceleration, expressed as the sum of the products of the mass of each particle in the body and the square of its perpendicular distance from the axis of rotation. Symbol: I

mo′ment of iner′tia


n.
the sum of the products of the mass and the square of the perpendicular distance to the axis of rotation of each particle in a body rotating about an axis.
[1820–30]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.moment of inertia - the tendency of a body to resist angular accelerationmoment of inertia - the tendency of a body to resist angular acceleration
inertia - (physics) the tendency of a body to maintain its state of rest or uniform motion unless acted upon by an external force
moment - a turning force produced by an object acting at a distance (or a measure of that force)
References in periodicals archive ?
The calculations changed damping and the total moment of inertia of the rotor and the driving link.
e, almost linear dependence of the moment of inertia on a simple function of the valence proton and neutron number.
The position of the rotor which is determined by the angle of rotation u is calculated by solving the equations of equilibrium of torque on the motor shaft, whose members include the moment of resistance of the rotor movement, the dynamic moment of resistance, depending on the moment of inertia of the rotor and the load.
The moment of inertia was determined experimentally [14] for the set of three mechanically-coupled electric motors used in validation.
2 kg Total fuel mass 20 000 kg Engine masses 4000 kg front, 4000 kg centre, and 2000 kg rear Total model mass 45 394 kg Fictitious inertia (Case 1) 1300 (a), 1000 (a), 1000 (a) Fictitious inertia (Case 2) 1050 (a), 700 (a), 700 (a) (a) Moment of inertia applied on ribs in the tip region (y direction): units = kg [m.
In fact for the acceleration and retardation it's very important to calculate the moment of inertia [3].
In this paper, an online identification method which can simultaneously identify three mechanical parameters (the moment of inertia of the system, the viscous friction coefficient of the motor, and the load torque) and a distinctive autotuning speed control scheme are proposed, which adjusts the speed loop parameters using the identified parameters.
trs] is the moment of inertia of segment s about its transverse axis obtained from the e-Zone program (Deffeyes and Sanders, 2005) and [[omega].
His topics are simple stresses and strains, principal stresses, centroid and moment of inertia, shear forces and bending moments in beams, stresses in beams, the deflection of beams, torsion of circular members, springs, strain energy, the theory of elastic failure, the buckling of columns, pressure vessels, plane trusses, and the mechanical testing of materials.
0-litre, 160ps powerplant allied to a slick, short-throw 6-speed manual transmission, the lightweight, compact, 25th Anniversary Limited Edition Mazda MX-5 achieves 0-62 mph acceleration in under eight seconds and a 136mph top speed with perfect, 50:50 weight distribution and a low moment of inertia for outstanding agility and driving enjoyment.
It is also supposed that the driving link has a fixed pivot and therefore the set of inertial parameters is diminished to a single reduced moment of inertia [J.
The satellite should be rotated around the axis with the highest moment of inertia to achieve a stable spinning system.