Tinker Toy Magnetic Tuner question

[Sven]

Shelley's rifle,6mmBR.com gun of the week) is a awesome nice shooting machine and holds some nice engineering details and shoots very well.
But....I noticed something that gave me some afterthought:

Let me state first that i'm not an mechanical engineer,but an agricultural one) and that I don't want to critize Davidson's ideas. I just would like to bring up the possible solution to the fact that the magnetic tuner does not show any effects.
OK here we go:
The bottom magnet is fixed to a rather thin piece of 90 degree bended aluminum sheet material that is fixed to the front bracket that is fixed to the tubes that are fixed,that's already 4 fixing points in a row) to the rear bracket.
Especially the aluminum sheeting piece where the bottom magnet is screwed into does not seem very strong in the vertical plane.

So my humble opinion is that al the "fixes" combined with the thin alu sheeting will NEVER allow the magnet to interfere with the barrel vibrations. The bottom magnet will just swing up and down with the barrel motion and do nothing in controlling the barrel. Because the barrel is much stiffer and heavier than the bottom magnet mounting the result will be that the barrel is moving the bottom bracket mounted magnet instead of the magnet interfering with the movement of the barrel.

I wonder if it would be possible in any way to mount a magnet to the front of any stock in a rigid enough way for this idea to work.

Like to hear your ideas on this....

 

[JimD]

I found this article interesting also. As far as flexibility of the mount for the magnet, I do not know if it will work but I suspect it will not regardless of the mount. If you think about the mount of force that would be required to deflect a target barrel even a tiny fraction of an inch and think about the amount of force that a magnet can exert, I do not see how it will affect things. The mount only has to resist the relatively small force exerted by the magnet. It is not obvious to me that the mount he is using is too small given the force but I have not done any calculations,I am a mechanical engineer but without doing any work, I am just guessing like anybody).

Jim

 

[Sven]

Thanks Jim,

I have no idea about the force of magnets, but if you say it is small compared to the vibrational forces of a barrel during the shot then i agree that it will have little influence.
On the other hand there are stories that even a finger lightly touching a barrel may influence the vibrational patterns. and there are of course the,adjustable) devices that put tension on the barrel at the front of the stock. I have never seen one in real life but the force they put on the barrel might not be that big. The big difference compared to the magnetic tuner is that these devices influence the vibarations somewhere along the barrel and not at the muzzle. Along the barrel it might be easier to alter the vibrational pattern.

Sven.

 

[Kav]

The magnets are not there to "deflect the bbl". they are to alter the vibrational characteristics of the bbl by altering the amount of force created between the opposing magnets.