Definition
Oscillations whose amplitude decreases steadily with time because energy is being removed from the oscillating system, causing the motion to die out and return to a stable state.
Plain English
Back-and-forth movements that get smaller each cycle until they fade away, because something is bleeding off the energy.
Context Anchor
Seen in aircraft stability discussions, especially when learning how an airplane returns to steady flight after a disturbance.
Derivation
From the Old English 'dampen,' meaning to reduce or deaden, combined with 'oscillation' from the Latin 'oscillare,' meaning to swing. Together: a swinging motion that is being deadened or reduced over time.
Why Pilots Care
Damped oscillations return the aircraft or its systems to a stable state; insufficient damping can allow flutter, resonance, or loss of control.
Analogy
Like a porch swing that has been pushed once: each swing is a little smaller than the last until it stops. That gradual fading is damping at work.
Grounding Statement
Picture the airplane’s nose rising and falling after a bump, with each rise and fall getting smaller until the airplane steadies itself.
Intuition Check
Damped does not mean wet, and it does not mean the motion stops instantly. Here it means the repeated motion is being reduced little by little.
Example Sentence 1
After the gust hit, the aircraft's nose pitched up and down a few times in damped oscillations before settling back to level flight.
Example Sentence 2
The attitude indicator showed small damped oscillations before settling on the new pitch attitude.