Degrees of freedom

Degree of freedom (DOF) of a mechanical system is the number of independent parameters that define its configuration. It is the number of parameters that determine the state of a physical system and is important to the analysis of systems of bodies in mechanical engineering, aeronautical engineering, robotics, and structural engineering.

The motion of a ship at sea has the six degrees of freedom of a rigid body, and is described as:

Translation and rotation:

Moving up and down (elevating/heaving);
Moving left and right (strafing/swaying);
Moving forward and backward (walking/surging);
Swivels left and right (yawing);
Tilts forward and backward (pitching);
Pivots side to side (rolling).

Comments

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Mechanical Engineering

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