Wine Glass Questions - Answered

How does a wine glass resonate, what is the mechanism?

The wine glass resonates by cycling energy back and forth between two forms, kinetic energy and potential energy.  The instant when the glass is not deformed, the glass is moving at a maximum velocity and all of the energy is stored as kinetic energy in the form of a moving mass.  The instant when the glass is at its maximum deformation, the glass has stopped moving and all of the energy is stored as potential energy in the form of a compressed spring.  In between these two states, the energy is stored as combination of kinetic energy and potential energy.

How is the resonant frequency of a wine glass determined?

The resonant frequency of a wine glass is determined by a combination of the effective moving mass of the glass and the effective stiffness of the glass interacting with each other.  The higher the effective moving mass of the glass, the lower the resonant frequency.  The higher the effective stiffness the glass, the higher the resonant frequency.

This MH was also a big fail.
As i pointed out earlier,--> all of the energy is stored as kinetic energy
Nope-wrong again.

It is funny how you harped away at me,smokey,and others,when we provided our description's,saying we are all wrong,and that you have it all correct-->and then you go and post a description of the worlds first continuous self resonating wine glass lol.


Brad.

Dear Brad.

Attached is a screenshot of a " pinched field " waveform past an unloaded coil.

This was done a couple of years ago under the " eye " of T-1000, we were looking at the Leedskalnin generator.

I managed to get a pair of 6 mm ( 1/4" ) square magnets with the N poles facing into a rotor that was spun by hand. Note the tightness despite the very low rotation speed.

Cheers Grum.

Captions added.

It would really be helpful if you were open to the idea that there is an opposite condition to the one you are describing.  Specifically, you make reference to TDC being zero volts, I appreciate this as do most, but as you well know this is text book, everyone can read the same over and over for themselves.  The opposite condition, namely, where TDC is the point of maximum opposition to change in flux, the point of maximum induced potential, is not discussed in the literature!  An open minded researcher like yourself would be wise to leave room for the possibility of such, and not slam the door shut each time you refer to coils and magnets and their geometric relations and interactions. 


Systems configured as we presently practice, are in my opinion half of the equation.  Folk don't seem to realize that, nor really care, as apparently it's more important to defend ones position.
 
My two cent!




Regards

where TDC is the point of maximum opposition to change in flux,

What is in opposition to the change in flux when the coil is open,and no current is flowing?-other than eddy currents in the core of course.

the point of maximum induced potential

The point of maximum induced potential is when the magnet is just before TDC.

Erfinder--stop being so bloody cryptic lol
Lets start a thread,and get the ball rolling 

Brad

Whoops! The scope trace travels from left to right on the display and the rotor is rotating clockwise so Brad got the colours backwards.  However, he copied my marked-up diagram and corrected himself after two tries and got it nearly 100% correct.  Nary a peep about his mistakes though.

Me: "The arrow was circled to remind you that the disk is rotating"

You clearly state Timing diagram,where the orange circle indicates the timing of the magnet.

That's a ridiculous thing to say, you are shamelessly lying.

You done the big face plant this time,and now you are trying your back peddle tactic's, but it's all there for everyone to see. lol

Your face is melting like wax while Brainfry's mind experiences thermal runaway.  I can see the smoke rising from your head as we speak.  You can't even admit that your fist two diagrams were wrong, even though you then turned around on a dime and did an exact copy of the diagram that I marked up.  You are morally bankrupt and a joke.

i drew it for you,and you scribbled some rubbish on it.

Your brain is glowing now like hot coals.

MileHigh

Hope I get you before, Get rid of the stopper block and let it rotate. Stopping the magnet like that changes everything.
I think that you have to bounce it back and forth.
Thanks for the video , To me it shows only a quarter of the wave?
artv

Over the years you have provided a lot of words, and occasionally a few pictures or drawings to go along with them. Whether those words and pics can be considered informative explanations or not is purely subjective opinion.
Cheers

Kiss my aura Dora right here on the floora.  - Frank Zappa

Er-no.
The wine glass will not resonate at all unless it receive's energy from another source.

Er-wrong again.
Some of the energy is dissipated as compression waves--  sound waves MH.
 
Already included this bit in one of my explanations--which of course you said was wrong.
Quote post 1696-It resonates due to the deformation and reformation  of the wine glass from it's rest shape,
 
Nope-im afraid not. Some of the energy is dissipated as compression waves(sound waves),and some is dissipated as vibration through the table or platform the wine glass is sitting on.

So you say the resonant frequency is determined by-effective moving mass,and stiffness of the glass.To you this is correct.
I say (post 1696)-The resonant frequency of a wine glass is determined by the shape,size,and structure of the glass,where you effective moving mass !is! the shape and size,and your !stiffness! is determined by the structure of the glass/crystal that the wine glass is made from;

Lol
MH-you really are a comedian some time's

It was a good laugh-if nothing else.

Brad

In the quoted posting above, you make yourself look like a fool with scrambled brains.  It's enough to make a grown man cry.

Er-no.  The wine glass will not resonate at all unless it receive's energy from another source.

There is nothing in the question about the wine glass receiving energy.  Is this a failure on your part to think?

Er-wrong again.  Some of the energy is dissipated as compression waves--  sound waves MH.

Er-wrong again my ass.  The question does not ask about energy dissipation, it just asks how the wine glass resonates.  Don't you dare get into one of your insane "car on a hill" arguments.  It's yet another failure on your part to think.

Already included this bit in one of my explanations--which of course you said was wrong.
Quote post 1696-It resonates due to the deformation and reformation  of the wine glass from it's rest shape,

You never answered the two questions completely and properly.

Nope-im afraid not. Some of the energy is dissipated as compression waves(sound waves),and some is dissipated as vibration through the table or platform the wine glass is sitting on.

No, I'm afraid SO.  You are stepping outside the bounds of the question again.  It's nonsensical idiocy like that that would get you sliced to pieces in no time on a serious electronics or physics forum.  They would think you were nuts.

So you say the resonant frequency is determined by-effective moving mass,and stiffness of the glass.To you this is correct.
I say (post 1696)-The resonant frequency of a wine glass is determined by the shape,size,and structure of the glass,where you effective moving mass !is! the shape and size,and your !stiffness! is determined by the structure of the glass/crystal that the wine glass is made from;

But you don't actually say the correct thing in your answer, you are just re-spinning your words in an attempt to make them fit.  I don't give a rat's ass if "the structure of the glass/crystal that the wine glass is made from" will determine the stiffness.  You did not say stiffness and it was never in your mind.  Stop the BS.

You completely failed to answer the two questions, mister "resonance researcher."  You were all pumped up with attitude at the beginning of this thread about resonance and as it turned out your puffed up chest was a fake because you could not articulate how a wine glass resonates, or how its resonant frequency is determined.

MH-you really are a comedian some time's

Based on what we have seen, you would be the laughing stock on any serious electronics forum.  The Tinman is only cool when he is in his cocoon on this forum.  You would be eaten alive elsewhere.  That's the harsh truth.

MileHigh

I know this is getting stale, but this is laughable:

Please do not take any notice of MHs messed up timing diagram and associated wave form,as it is incorrect. Faradays law of induction says that it is incorrect. How MH came up with that one--i will never know.

FIRST THE EGG, THEN THE CHICKEN.