Recent content by antsknee

I have been searching these forums and it seems I need a Bessel function for cylindrical harmonics. They are used to understand musical instruments such as cymbals. The wikipedia page looks very complicated, I bet I won't get any replies to this thread :)...

I have been looking at tuning forks for inspiration. The resonant frequency of a tuning fork is: f=(1/l2)\sqrt{}(AE/p) l=length of the prongs A=area of prongs E=youngs modulus of material p=density of material I will return with more thoughts as I have them.

F=kp F= applied force p=pain k=wedgie constant The pain felt from a wedgie is proportional to the force applied in pulling their underpants. :)

Yes, you should concentrate on the energy placed into the object, whether F, the force, comes from your arms or an auto or anything else is not important. Force is a vector so it has components in this case in the x and y direction, you are looking only for work done pusing the case along the...

If you try to shove your case into the Earth (y axis), how is that contributing to travel in the x axis? It isn't, it is creating more work for you.

Hi, I am trying to work out the resonant frequency of an annular ring, does anyone know a general equation for it? For example the ring has an outside diameter = OD and inside diameter = ID. The ring is gently clamped at the outside diameter and a force F applied evenly at the inside...