Rigid bodies

scalar measure of the rotational inertia with respect to a fixed axis of rotation

idealization of a solid body in which deformation is neglected (distance between any two given points of a rigid body remains constant in time regardless of external forces exerted on it)

(of mechanical system) number of independent parameters that define its configuration; number of parameters that determine the state of a physical system and is important to the analysis of systems of bodies

parameters that describe the configuration of the system relative to some reference configuration

physical system of two bodies connected to limit their relative movement

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quasilinear first-order ordinary differential equation describing the rotation of a rigid body

study of systems of undeformable bodies under applied forces and how they change with time

extend Newton's laws of motion to rigid bodies

Mathematical theorem

section of a machine which is used to connect one mechanical part to another

model of rotating physical systems

geometric method for visualizing a rotating rigid body

one-degree-of-freedom kinematic pair used in mechanisms

joint that provides a linear sliding movement between two bodies

The details of a spinning body may impose restrictions on the motion of its angular velocity vector, . The curve produced by the angular velocity vector on the inertia ellipsoid, is known as the polhode, coined from Greek meaning "path of the pole". The surface created by the angular velocity vector is termed the body cone.

motion of rigid body in ideal fluid

Rigid body equations in classical mechanics