rigid body

(redirected from Constrained 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 ?
Chapter one, "Mechanical Design and Fabrication," includes sections on tools and shop processes, materials, physical principles of mechanical design, and constrained motion.
The almost 90 contributions cover a broad range of topics, including wing morphing, aircraft control, nonlinear aircraft ground dynamics, alcohol and air rage, and the geometry of constrained motion.
Key words: Haptic Interface, shape, texture, roughness, exploration, control, constrained motion, free motion
Udwadia and Kalaba have pictured the difference between the predicted free motion at each instant and the actual constrained motion at the same time, uncovering a central principle of mechanics.
In this formulation the control strategy does not optimize the transition between unconstrained and constrained motions but once the contact is established the method allows also to control the interaction force.

Full browser ?