# rigid body

(redirected from Rigid motion)

## Rigid body

An idealized extended solid whose size and shape are definitely fixed and remain unaltered when forces are applied. Treatment of the motion of a rigid body in terms of Newton's laws of motion leads to an understanding of certain important aspects of the translational and rotational motion of real bodies without the necessity of considering the complications involved when changes in size and shape occur. Many of the principles used to treat the motion of rigid bodies apply in good approximation to the motion of real elastic solids. See Rigid-body dynamics

## rigid body

[′rij·id ′bäd·ē]
(mechanics)
An idealized extended solid whose size and shape are definitely fixed and remain unaltered when forces are applied.
References in periodicals archive ?
It is assumed that the pedestal does rigid motion in XY plane.
Quandles and their kin--kei racks, biquandles, and biracks--are algebraic structures whose axioms encode the movement of knots in space, say Elhamdadi and Nelson, in the same way that groups encode symmetry and orthogonal transformations encode rigid motion.
The latter corresponds to the existence of a rigid motion of [R.
Our approach will use a combination of rigid motion stabilization through the design of novel stabilizers and sophisticated algorithms for acquisition during advanced cardiopulmonary gating.
From the obtained results, the six initial mode shapes are zero that could be result of rigid motion and rotation around the three coordinate axes.
It is proposed a dynamical analysis of a mobile mechanic system by the overlap of the solid rigid motion with the one of solid deformable.
A rigid motion in a metric manifold is a motion that leaves the metric [dl'.
The algorithm proposed in this paper is based on the assumption of rigid motion, and the relative displacement between frames is calculated by numerical iteration.
We will consider that the small deformations will not affect the general, rigid motion of the system.
Topics include the Gauss map and the second fundamental form, the divergence theorem, global extrinsic geometry, rigid motions and isometrics, and the Gauss-Bonnet theorem.
These plans will involve an opportunity to be certain that each student can identify and describe the three rigid motions - reflection, rotation, and translation - in various circumstances as well as the three types of symmetry - reflective, transitional, and rotational.

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