moment of inertia

moment of inertia
This is similar to inertia except that it relates to rotating movement rather than linear movement. Linear movement is the tendency of an object to remain motionless if at rest and to keep moving in a straight line if already in motion. The moment of inertia, however, is the tendency of an object to resist being accelerated when it is rotating. The polar moment of inertia is the rotating movement around a vertical axis through the center of rotation. It greatly affects steering and handling response in an automobile. The greater the length of the axis the greater the polar moment of inertia. By having the heavy components of a vehicle such as the engine and transmission between the two front wheels, the polar moment of inertia is low so that the tires can easily change the direction of the vehicle.
Also see

Dictionary of automotive terms. 2015.

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  • Moment of inertia — Moment Mo ment, n. [F. moment, L. momentum, for movimentum movement, motion, moment, fr. movere to move. See {Move}, and cf. {Momentum}, {Movement}.] 1. A minute portion of time; a point of time; an instant; as, at that very moment. [1913… …   The Collaborative International Dictionary of English

  • Moment of inertia — This article is about the moment of inertia of a rotating object, also termed the mass moment of inertia. For the moment of inertia dealing with the bending of a beam, also termed the area moment of inertia, see second moment of area. In… …   Wikipedia

  • moment of inertia — inercijos momentas statusas T sritis Standartizacija ir metrologija apibrėžtis Dydis, išreiškiamas kūno masės elementų ir jų atstumų nuo tam tikros ašies kvadratų sandaugų suma (integralu). atitikmenys: angl. inertia moment; moment of inertia;… …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

  • moment of inertia — inercijos momentas statusas T sritis automatika atitikmenys: angl. inertia moment; moment of inertia vok. Trägheitsmoment, n rus. момент инерции, m pranc. moment d inertie, m …   Automatikos terminų žodynas

  • moment of inertia — inercijos momentas statusas T sritis fizika atitikmenys: angl. inertia moment; moment of inertia vok. Massenträgheitsmoment, n; Trägheitsmoment, n rus. момент инерции, m pranc. moment d’inertie, m …   Fizikos terminų žodynas

  • moment of inertia — noun a) A measure of a bodys resistance to a change in its angular rotation velocity b) A measure of a bodys resistance to bending; second moment of inertia; …   Wiktionary

  • moment of inertia of a line — linijos inercijos momentas statusas T sritis fizika atitikmenys: angl. linear moment of inertia; moment of inertia of a line vok. Linienträgheitsmoment, n rus. линейный момент инерции, m; момент инерции линии, m pranc. moment d’inertie d’une… …   Fizikos terminų žodynas

  • moment of inertia about an axis — ašinis inercijos momentas statusas T sritis fizika atitikmenys: angl. axial moment of inertia; moment of inertia about an axis vok. axiales Trägheitsmoment, n rus. момент инерции относительно оси, m; осевой момент инерции, m pranc. moment… …   Fizikos terminų žodynas

  • moment of inertia — 1) a property of an object relating to the magnitude of the moment required to rotate the object and overcome its inertia. 2) a property of a two dimensional cross section shape with respect to an axis, usually an axis through the centroid of the …   Mechanics glossary

  • moment of inertia — noun the tendency of a body to resist angular acceleration • Hypernyms: ↑inertia, ↑moment …   Useful english dictionary

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