What Is a Shimming Damper on Aircraft Nose Gear?

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Discussion Overview

The discussion revolves around the function and purpose of a shimming damper, specifically in the context of aircraft nose gear. Participants explore its role in dampening oscillations and stabilizing the aircraft during ground operations, particularly after landing.

Discussion Character

  • Exploratory, Technical explanation, Conceptual clarification

Main Points Raised

  • Some participants suggest that the device is intended to dampen oscillations of the nose wheel after landing, helping to keep the aircraft aligned on the runway.
  • Others propose that the shimmy damper may assist during crosswind landings by stabilizing the nose gear.
  • A participant mentions that the damper's main function is to prevent high-frequency wheel wobble caused by runway imperfections, comparing it to the behavior of a supermarket trolley.
  • There is a clarification regarding the name "Lord," which refers to a manufacturer known for vibration absorption technologies.
  • One participant expresses confusion over the terminology, initially referring to it as a "shimming damper" before correcting to "shimmy damper."
  • Another participant shares a link to an animation of the shimmy damper, although there are issues with the link functioning properly.

Areas of Agreement / Disagreement

Participants generally agree on the basic function of the shimmy damper in stabilizing the nose gear, but there are variations in understanding its specific applications and effects, indicating that multiple views remain in the discussion.

Contextual Notes

Some assumptions about the device's function are not fully explored, and there may be dependencies on specific definitions of terms like "shimmy" and "oscillation." The discussion does not resolve the technical details of how the damper operates under different conditions.

stan19
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If i am not wrong, there is shimming damper at aircraft nose gear. Anybody have any idea about what's the device for?
 
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Do you mean a shimmy damper?
 
Never even heard about it until this thread, but http://www.ae.go.dlr.de/dyn/research/shimmy/anims/shimmy-damper_anim.gif a nice animation.
 
Last edited by a moderator:
I hadn't heard of it either, thanks Fred/cyrus.

Fred, I assume the device is to dampen out oscillations of the nose wheel after landing, hopefully keeping the craft pointing straight down the runway? Is it supposed to assist in, um, 'sideways' landings made in a crosswind?

Nice animation. Why does the damper say 'lord' on it?!
 
It was ordained by GOD! :-p

Ah, LORD is a big damper company-thats why.

Apparantly its nothing more than a damper.
 
Last edited:
brewnog said:
I hadn't heard of it either, thanks Fred/cyrus.

Fred, I assume the device is to dampen out oscillations of the nose wheel after landing, hopefully keeping the craft pointing straight down the runway? Is it supposed to assist in, um, 'sideways' landings made in a crosswind?

AFAIK its main function is to stop high frequency wheel wobble (similar to what you get on a a supermarket trolley) caused by bumps on runways and taxiways, etc. Front wheel steering is what controls the "large-scale" motion of the aircraft on the ground.
 
brewnog said:
Nice animation. Why does the damper say 'lord' on it?!
Lord is a manufacturer that specializes in vibration absorption. They make mounts for engines, drive shaft, etc...
 
thank you, my mistake, its shimmy damper..
 
Cyrus said:
Never even heard about it until this thread, but http://www.ae.go.dlr.de/dyn/research/shimmy/anims/shimmy-damper_anim.gif a nice animation.

guyz this video is nt workin...
if u can pls ...put that link again

thanx
 
Last edited by a moderator:

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