Plain English Meaning
A wobble or swing that gets smaller with each cycle and eventually stops on its own.
Full Definition
A back-and-forth motion whose amplitude decreases over time until it returns to rest, because energy is gradually removed from the system by friction, drag, or some other resistance.
Context Anchor
Seen in aircraft structures, landing gear, flight controls, and vibration discussions when a part moves back and forth and then settles down.
Derivation
From the verb 'damp,' which originally meant to smother or stifle (as in damping a fire). Here it means reducing the strength of a motion. So a damped oscillation is one whose swings are being progressively stifled.
Why Pilots Care
An aircraft with well-damped oscillations returns to steady flight quickly after a disturbance, which makes it stable and easier to fly. Poorly damped or undamped oscillations can grow or persist, making the aircraft uncomfortable or unsafe to control.
Analogy
A door with a good door closer shows damped oscillation: it may move back slightly once or twice, but each movement is smaller until the door rests still.
Grounding Statement
Picture pushing a child on a swing once and then walking away. Each swing is smaller than the last until the swing stops. That is a damped oscillation.
Intuition Check
“Damped” does not mean wet here. It means the motion is being reduced or controlled.
Example Sentence 1
After the gust hit, the wing rocked twice and settled — a textbook damped oscillation.
Example Sentence 2
The mechanic observed the damped oscillation of the unbalanced propeller during the test run.