A oscillation is a movement or a periodic fluctuation. The oscillations are either with constant amplitude or quenched. They answer the same equations whatever the field.

Mechanics

A oscillation is a repetitive movement of a moving part around a fixed point of balance.

• a beam of pendulum oscillates from right to left around its point of balance which is the vertical. The movement can be maintained by a system with Ressort or by Impulsion S electric S.
• a suspension Véhicule to tendency to to oscillate around its point of rest, during its operation without Amortisseur or when this one is defective.

See also oscillating Systems with a degree of freedom.

Electricity-electronics

The oscillation in a Electrical circuit can be desired, like in the case of the Oscillateur S, or be due to a defect. It consists of a variation Cyclique of the intensity of the electric current in this circuit.

Physics

The matter is in perpetual agitation or oscillation at the molecular level. These Onde S can be:

• material, as the its which is a vibration of the Molécule S composing the Air
• immaterial, as the Lumière which results from the vibration of a Electric field and of a Magnetic field in the Vide.
• it also acts of a property of the Neutrino S.

Movement of a body which passes by again regularly by the same positions with same speeds.

Harmonic oscillator

The oscillating harmonic simple checks the differential equation of movement following: $y\text{'}\; \text{'}(T)\; +\; \backslash \; omega\_0^2\; \backslash \; cdot\; there\; (T)\; =\; 0$ whose solution of the corresponding equation is:
$there\; (T)\; =\; has\; \backslash \; cdot\; cos\; (\backslash \; omega\_0\; \backslash \; cdot\; T)\; +\; B\; \backslash \; cdot\; sin\; (\backslash \; omega\_0\; \backslash \; cdot\; T)$     or
$there\; (T)\; =\; \backslash \; sqrt\; \{A^2\; +\; B^2\}\; \backslash \; cdot\; cos\; (\backslash \; omega\_0\; \backslash \; cdot\; T\; +\; \backslash \; varphi)$
with   With   and   B   constants to be determined with the conditions initiales.
$\backslash \; sqrt\; \{A^2\; +\; B^2\}$ is the maximum amplitude of oscillation.

See too

• Système mass-arises. Studied the period of oscillation of a mass suspended with spring.

External bonds

• Animations of oscillators (pendulums, system mass-arises, suspension, seismograph, etc)

• a video explanatory on the relieving of a spring

Simple: Oscillator

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