BesslerWheel.com

Here is the sim of broli's device being started into motion from a flywheel initially spinning at 10 rad/sec. That flywheel reduces in speed as the device is spun up through a continuous variable ratio gear connection. Once the entire device is up to -1 rad/sec, the secondary arms deploy. After thos...

Success and failure with modifying a wm2d sim similar to broli's. I've found things to be somewhat more stable and definitely faster compute wise by building with only primitives (no polygons). I've added a flywheel and two friction drives. The flywheel is spun up by a motor that "disappears&qu...

Double post.

Fletcher, yep, it was disappointing that broli chose not to provide his wm2d file even when asked. Especially after he has asked for others to assist and collaborate. That is exactly what I was trying to do. I figured if we could clearly show the device being started up by a flywheel and then return...

Here's the design: downloadable video: http://ziosproject.com/NJ/exvid79.avi youtube video: http://www.youtube.com/watch?v=sPLeLxOBcVQ I highly encourage others to take part in this project. Broli, could you post the wm2d file for this design? I believe we can start the initial spinning motion from...

I believe it is easy enough to simulate the actions of a CVT type momentum transfer in WM2D, just not the true mechanism. If you press two circular elements together they can pass angular velocity between themselves. For example, push two together with springs (maybe proper construction can achieve ...

Would it be possible to just use broli's original momentum transfer sim seen here http://www.youtube.com/watch?v=sPLeLxOBcVQ. Add to this sim a free standing flywheel. Start that flywheel spinning first with a motor that turns off shortly thereafter. Now couple that flywheel to broli's device with a...

Well WM2D appears to have done a fine job. Here is a 1 meter diameter disk where the axle is free to slide side to side. The "weight" is the smaller circle on the rim. For this shot the weight is 100 kg and the disk and slide block are at .0001 kg. The disk is made to spin at 1 rad/sec. Mo...

Surely similar to having a small dia bicycle hub rotating at some speed, and resting upon that hub a rim with no spokes, it's a simple friction drive. Except that the small dia bicycle hub would not rotate. Instead it must move in a circular path. And the rim with no spokes also does not simply res...

Of course, Ralph. But in the case of the hula-hoop, there is energy being imparted to hoop by the girl. So that energy is needed to overcome some sort of loss that we normally ignore in the "ideal" situation (without friction, air resistance, etc.). What are the non-ideal losses? (semi-rhe...

Thanks Fletcher. I was unaware that WM2D might be useful in this case. I've only used it to investigate gravity wheel type scenarios and have not learned it's capabilities for evaluating torque/power input requirements for rotating systems. And from other posts here I realize there are many other fe...

So far we all agree. But it continues... With the same unbalanced disk arrangement we un-fix the motor mount. Instead, it is mounted on a linear slide so that it has one degree of freedom (side to side). Call that axis X. Y would be perpendicular to X in the same plane and Z the axis of our motor sh...

A friend of mine ;) has a question that I have been unable to answer so I thought I might pose it here: Imagine a disk spinning in a horizontal plane. It can be driven by a fixed DC motor so that we can easily measure power. Similar to a direct drive record player. It is my understanding that the po...

From what I've seen, this is not possible. But I'd like to learn otherwise myself. Instead of a fully closed drum, draw it with a slot running from the ID to the OD, like a letter "C" with a very small opening. Also, you can draw two halves of the drum and then attach them to get the whole...

So two cancelling sound waves convert their energy into localized heating of the medium where the two waves collide? Through friction? The example of two speakers facing each other that output identical sound waves that are 180 degrees out of phase will cause heating of the air at the midpoint betwe...