How to find the sound power in a collision?

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SUMMARY

The discussion focuses on calculating sound power and sound pressure resulting from collisions, specifically addressing the relationship between pressure, kinetic energy, velocities, densities, and masses of colliding objects. Participants express skepticism about the feasibility of accurately determining the fraction of energy converted to sound, particularly in complex scenarios like automobile or airplane crashes. The conversation highlights the variability in sound produced by different materials, such as glass, wood, metal, and ceramics, emphasizing the challenges in establishing a universal calculation method.

PREREQUISITES
  • Understanding of basic physics principles, particularly in mechanics.
  • Familiarity with sound power and sound pressure concepts.
  • Knowledge of kinetic energy calculations.
  • Awareness of material properties affecting sound production.
NEXT STEPS
  • Research the principles of acoustics related to collision dynamics.
  • Explore methods for calculating sound power in elastic and inelastic collisions.
  • Study the impact of material properties on sound generation during collisions.
  • Learn about computational models for simulating collision sound effects.
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Physicists, engineers, sound designers, and anyone interested in the acoustic analysis of collisions and material interactions.

ajsmith595
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How would you go about calculating the sound power and sound pressure given the pressure (as in collisions [force/area]) of the collision, kinetic energy in the collision, velocities of both objects, densities and masses. Is this possible? Is the pressure of the collision equal to the sound pressure produced?

I am sorry if I put the thread in the incorrect difficulty level.
 
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As I think of automobiles or airplanes crashing, and I think of all the crunching and tearing, I am led to believe that finding the fraction of energy given of as sound to be something impossible to calculate.

Perhaps you have a much simpler ideal case in mind. Smooth rigid objects of particular shapes? Even then, it would be exceedingly hard. I think of the different sounds given off by colliding spheres of glass, wood, metal, and ceramics (i.e. billard balls). Some ring, some thud.
 

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