Pattern of motion in which all parts of the system move sinusoidally with the same frequency and with a fixed phase relation
Also known as characteristic vibration · normal mode
3 identifiers linking normal mode across the web's reference databases
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A normal mode of a dynamical system is a pattern of motion in which all parts of the system move sinusoidally with the same frequency and with a fixed phase relation. The free motion described by the normal modes takes place at fixed frequencies. These fixed frequencies of the normal modes of a system are known as its natural frequencies or resonant frequencies. A physical object, such as a building, bridge, or molecule, has a set of normal modes and their natural frequencies that depend on its structure, materials and boundary conditions.