Resonant Frequency...?

Question

What are the resonant frequencies of wood, rubber, and concrete?

Sorry about the lack of information. Can you just give me a general ranking of those three materials based on which has the lowest resonant frequency and then upward?

Answer 1

these frequencies are depending on the objects shape, mass and its inner structure.
there are no proper ways to calculate the exact resonant frequency if you know these values.
Most calculations rely on experiments being made, and if it comes to planning bridges or buildings these calculations being made on observations on already existing structures.
A calculation like this delivers just a coarse range that the resonant frequency is between X and Y somewhere.

basically the more denser the material is, the higher the frequency (having a pencil-sized piece of each to test)
the smaller the object, the higher the frequency
the more mass it has the lower the frequency

Answer 2

The resonant frequency has as much to do with the geometry of an object as the material its made of. Therefore, no quantitative answer can be given to your question.

Answer 3

Your question cannot be answered here for a number of reasons

1. You have not stated the type of wood, the denser to wood the higher the frequency

2. The composition of the rubber

3. The type of concrete, for example what type of agregates, it is pre-stressed or post stressed

Answer 4

it extremely is not likely significant to talk concerning the frequency. We confer with the somewhat some configurations as "modes." the easy mode of a closed string is the graviton, that's the foremost explanation why string concept is so exciting.