Maximum Vibrations in a material

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Discussion Overview

The discussion centers around identifying materials that can sustain powerful vibrations when struck or interacted with, exploring the properties that contribute to effective vibration transfer between materials. The scope includes theoretical considerations of material properties, practical applications in design, and examples from musical instruments.

Discussion Character

  • Exploratory
  • Technical explanation
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • Some participants inquire about materials that can develop powerful vibrations when struck, seeking examples and properties.
  • One participant suggests that materials with low viscoelasticity are preferable for sustaining vibrations, mentioning glass, metal, rubber, and even water droplets.
  • Another participant describes a scenario where vibrations are transferred from one material to another, proposing a design where a material is sandwiched between two vibrating materials.
  • There is a suggestion that using a vacuum or air as a medium could minimize energy dissipation, thus enhancing vibration transfer.
  • One participant mentions that while certain materials like brass and steel can vibrate for extended periods, any contact can quickly dampen those vibrations.

Areas of Agreement / Disagreement

Participants express various views on the best materials for sustaining vibrations, with no consensus on a single optimal solution. There are competing ideas about the role of different materials and mediums in vibration transfer.

Contextual Notes

Participants have not fully resolved the implications of material properties on vibration sustainability, and assumptions about the conditions under which these materials operate remain unclear.

Who May Find This Useful

This discussion may be of interest to those involved in material science, engineering design, acoustics, and musical instrument construction.

Young Learner
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Hi,

What is the material which would develop powerful vibration for a sustained period when they are stroked with another material(may be the same or a different material).
 
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Can you elaborate? Your post is not making much sense.
 
For example, if I strike a copper or silver materials with each other they produce vibrations or even when a string is stretched in a guitar vibrations are produced.

Likewise which material induces maximum vibrations for a sustained period of time?
 
In general, any material with small viscoelasticity(low energy losses due to deformation) at given conditions.
It may be peace of glass, metall, rubber, even water dropplet, depending of what do you need.
 
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Graniar said:
In general, any material with small viscoelasticity(low energy losses due to deformation) at given conditions.
It may be peace of glass, metall, rubber, even water dropplet, depending of what do you need.

I just want to transfer the vibrations produced from a material to another material. Like for example, I want to sandwich a material in between two vibrating material so that the vibration is transferred or sustained in the material which is placed in the middle.
 
Young Learner said:
I just want to transfer the vibrations produced from a material to another material. Like for example, I want to sandwich a material in between two vibrating material so that the vibration is transferred or sustained in the material which is placed in the middle.

For example, there are two blocks connected with the spring/rubber medium. After a shot shake, those blocks stay motionless, but the medium still vibrate for some time. Is this kind of design do you mean?
 
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Graniar said:
For example, there are two blocks connected with the spring/rubber medium. After a shot shake, those blocks stay motionless, but the medium still vibrate for some time. Is this kind of design do you mean?

I am not exactly sure. But, Assume that the material I want to sustain vibrations is A. A is sandwiched between an another material B. I initiate the process by striking B, so that the vibrations are transferred to A. I do this because when I directly strike A, Vibrations induces is very less and are not sustained. But Material B has good vibration properties.
 
B will just increase energy dissipation, thus the perfect material for B is vacuum (an air is also good).
All you can do is to find best material for A. (superfluid liquid helium is the best, but I suppose is not suitable for your design), pure monocrystals would vibrate longer
 
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What you suggest is like wanting to make a bell or a guitar string wrapped in cotton sound nicely. I have seen brass and still bells vibrating for a lot of time, say 3-4 min, however, as soon as you touch them for a second with any object, e.g your hand, the vibration is immediately quenched.
 
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