MH's ideal coil and voltage question

[MileHigh]

A tuning fork is not a system,it is a single component.

You are a blank slate Brad, and you are completely lost.

[tinman]

And one last time MH,in the hope you will see the error of your thinking.

The physics behind resonance,and when an object will resonate.

Please try and understand what you are reading.
Once again,the below link tells the very same story that the other 20 or so links and video's i have provided over the two threads--this one,and the JT thread.

You will once again see how an object vibrating at it's natural resonant frequency,and the same object resonating are defined.
Your wine glass and bell are not resonating while they are ringing down--they are oscillating at there natural resonant frequency.
Please read carefully MH.
The 3 things needed to get an object to resonate.
These are things you cannot change to try and justify your nonsense MH,whether you like it or not.

Quote:
The ABC's of Resonance

Resonance causes an object to move back and forth or up and down. This motion is generally called oscillation. Sometimes the oscillation is easy to see such as the motion of a swing on a playground or the vibration in a guitar string. In other cases the oscillation is impossible to see without measuring instruments. For example,  electrons in an electrical circuit can oscillate but it happens on a molecular level.

In resonance the oscillation occurs  at a specific frequency. These oscillations build up rapidly to very high levels. Ultimately some of the energy in the oscillations has to be removed from the object or the size of the oscillations get so large that the object breaks.

Resonance requires 3 basic conditions:

A) An Object With a Natural Frequency: The object can be a mechanical device or an electronic circuit. An object's natural frequency is the frequency it tends to oscillate at when disturbed. The oscillation can be a mechanical vibration as is the case when the string of a guitar is strummed. In an electronic circuit the oscillation is a variable voltage or current. An object can have more than one natural frequency. These are called harmonics. A guitar string sounds musical because it vibrates with several harmonics when it is strummed.

B) A Forcing Function at the Same Frequency as the Natural Frequency: In mechanical systems the forcing function is a variable force. In electronic circuits it arises from a variable electric field. In either case the forcing function does work on the object it is applied to. Since work is a form of energy transfer it causes energy to build up in the object.

C) A Lack of Damping or Energy Loss: For an object to resonate, mechanical or electrical energy has to build up in the object. Anything which removes these forms of energy tends to interfere with resonance. Damping is a means of  removing electrical or mechanical energy by converting it to heat. The term damping should not be confused with the term dampening which means to make something slightly wet. Friction, air resistance, and viscous drag can all provide damping in mechanical systems. Electrical resistance performs the same function in electronic circuits. Other forms of energy loss can include sound (musical instruments) or light emissions (lasers).

When the forcing function's frequency  matches the natural frequency of an object it will begin to resonate. The forcing function adds energy at just the right moment during the oscillation cycle so that the oscillation is reinforced. This makes the oscillation's amplitude grow larger and larger. These oscillations would eventually become infinitely large. However, as mentioned earlier, long before the oscillations reach infinity one of three things happens: 1) the object's dynamics change so that the resonant frequency and forcing functions no longer match, 2) the energy lost as heat, sound, or light becomes equal to the energy input. or 3) the object breaks

http://www.intuitor.com/resonance/abcRes.html

You have not supplied one link MH,that says an object will resonate without this forcing function.
The reason you have not done this,is because an object will not resonate by it self--it will only vibrate/oscillate at it's natural resonant frequency-->but it will not resonate.

It is clear that you have lost the ability to learn,and the falsehoods you have become to believe ,are set in stone with you.
This is not going to be very helpful to those here wishing to learn the truth.

I have provided more than enough evidence to squash your silly understandings on resonance.
But of course,everyone else will be wrong,and MH will be right.


Brad

[tinman]

You are a blank slate Brad, and you are completely lost.

The two forks on a tuning fork,will oscillate 180* out of phase to each other,and not in phase-->as far as motion is concerned. This means that the two forks will spread apart at the same time,and they will come together at the same time-they will not sway from left to right in unison--or in resonance.The only thing they have in common,is the oscillation frequency--they are not resonating together.


Brad

[MileHigh]

Brad:

You are still completely and utterly lost.  For this subject matter, your ability to conceptualize something all by yourself is essentially nil.  Sometimes you have almost no innate capacity to figure something out by yourself.

A tuning fork is not a system,it is a single component.

No in fact a tuning fork is a mechanical system.   You know what an LC resonator is, a capacitor connected to an inductor.  The simple model for a tuning fork, a wine glass, and a bell, is an LC resonator.  All four of them are resonators that all work in fundamentally the same way.

Here is what you fail to realize even after countless attempts to explain this to you in the case of the wine glass:  The mass of the arms of the tuning fork, using the force-current analogy, is modeled as a capacitance.  Likewise, stiffness of the arms of the tuning fork to deflection (the springiness) is modeled as an inductance.  A tuning fork is simply a mechanical LC resonator.  See the attached graphic.

What is the etymology for the word "resonance?"  It comes from French, meaning to "re-sound."  In other words, sound coming back, or sound bouncing back and forth.  Where is this "bounce" in resonance?  In the case of the tuning fork, the moving arms translate their motion and energy into the spring of the tuning fork and compress it.  Then the energy that is in the spring "re-sounds" or "bounces back" and the arms are moving again.  This process repeats over and over.  That is fundamentally what resonance is.

As such, an LC circuit, a tuning fork, a wine glass, and a bell are all LC resonators that resonate at their resonant frequency and manifest the phenomenon of resonance.  They don't have to be externally driven by an excitation that is at the resonant frequency, they are perfectly fine to resonate all by themselves and ring down if energy is put into the system.  i.e.; striking a tuning fork.

The act of ringing down is an example of resonance.  The fact that the system rings down due to the damping effects of a resistance to the oscillation does take away from the fact that the system is resonating.

Now if only you could understand this.

MileHigh

[MileHigh]

The two forks on a tuning fork,will oscillate 180* out of phase to each other,and not in phase-->as far as motion is concerned. This means that the two forks will spread apart at the same time,and they will come together at the same time-they will not sway from left to right in unison--or in resonance.The only thing they have in common,is the oscillation frequency--they are not resonating together.

Brad

I could slice and dice through that and try to talk some sense into you but instead I am going to do a few postings with some links and copy/pasting and hope something sticks.

If you don't get what I say, then stay forever lost in your fog of ignorance.  There is only so much work that can be expended in trying to talk some sense into you and getting you to think straight about this important subject matter.