Determine the frequency of a standing wave with Young´s modulus?

[Blundie]

Note: This is a laboration assignment.

Homework Statement

I want to theoretically determine the frequencies of the standing waves that occurs in a Chau gong when exposing it to a camera flash (Nikon sb-900) from a given distance. These shall then be compared to the frequencies obtained from the spectral analysis of a oscilloscope connected to a sound intensity meeter.

Diameter of the Chau Gong (or tam-tam according to wikipedia) can be measured as well as the distance between the flash and chau gong. The energy, effect and burn time of the flash are known.

Homework Equations

My handler wants me to use some relationship between Young´s modulus and the frequency and/or wavelength of the standing wave.

The Attempt at a Solution

What I can think of is lambda*f = v, where v is the wave's propagation velocity, lambda the wavelength and f the wave's frequency. The speed of sound is known as well as the diameter of the Chau Gong hence the wavelengths of the standing waves are known?


I guess I just don't know how to relate Young´s modulus to my assignment?!

I've searched a lot the last couple of days to find some insight in how to proceed but with no results. Hopefully someone here have some idea how to figure this out?

 

[Blundie]

Is there no one who have an idea? :(