Membrane vibration

1. What is the meaning of vibrating membrane?
2. What happens when you strike the membrane of a drum?
3. What is rectangular membrane?
4. What is a drum mode?

What is the meaning of vibrating membrane?

A two-dimensional elastic membrane under tension can support transverse vibrations. ... The vibrations of the membrane are given by the solutions of the two-dimensional wave equation with Dirichlet boundary conditions which represent the constraint of the frame.

What happens when you strike the membrane of a drum?

Striking the head of the drum changes its shape and compresses the air inside the shell. The compressed air presses on the bottom head and changes its shape. Then, these changes are transmitted to the drum shell and reflected back, and this action is repeated, creating a vibration.

What is rectangular membrane?

The resonant vibrational modes of an ideal membrane with length equal to 1.41 times its width are shown. The membrane produces harmonics, but also produces non-harmonic overtones. Where there are multiple segments, adjacent segments are moving in opposite directions during vibration.

What is a drum mode?

The (0,1) mode of a drum, such as a tympani, is excited for impacts at any location on the drumhead (membrane). When vibrating in this mode the membrane acts much like a monopole source, which radiates sound very effectively.