Search found 38 matches

by cyberdust
Wed Mar 31, 2010 3:28 pm
Forum: General Discussion
Topic: Can someone explain this?
Replies: 5
Views: 1665

re: Can someone explain this?

After so many hours, still I cannot explain this. The kinetic energy of "rectangle 1" depends only of its mass. I have increased its mass to 1000 kg, and with same powers of the motors, I have now 103 J. Anyone any idea? Either WM is for the trash, of I have just invented the perfect perpe...
by cyberdust
Wed Mar 31, 2010 9:43 am
Forum: General Discussion
Topic: Can someone explain this?
Replies: 5
Views: 1665

re: Can someone explain this?

I think I have solved this riddle. From a previous, similar application it has kept some initial velocities. I made them all 0, and now I face new problems. The power of motor24 is fluctuating between -0.3 and +0.3 W, of motors 17 and 20 between -9 and +9 W, summaries of all motors are 0 W. But how ...
by cyberdust
Wed Mar 31, 2010 6:40 am
Forum: General Discussion
Topic: Can someone explain this?
Replies: 5
Views: 1665

Can someone explain this?

Can someone explain this? http://img.photobucket.com/albums/v494/CyberDust/wm4-1.jpg Trying to understand WorkingModel, I arranged this construction. It is turning anti-clockwise. All motors are of type “velocity�. Motor17 and motor20 have a value of -60 degrees, motor24 of values +60 degrees. M...
by cyberdust
Mon Mar 22, 2010 10:15 pm
Forum: General Discussion
Topic: Double Inverted Furuta Pendulum
Replies: 0
Views: 1162

Double Inverted Furuta Pendulum

We all know the inverted pendulum, as shown in this video http://www.youtube.com/watch?v=lwJ2jzVexaI Now the question is, instead of trying to keep the pendulum erected, let's keep it always running, without ever getting in a balanced state. Computer software and some chips can make all the work, an...
by cyberdust
Wed Mar 10, 2010 7:07 pm
Forum: General Discussion
Topic: movable slot joints
Replies: 6
Views: 2177

re: movable slot joints

Well, my wheel is not exactly the same as the Andy motor. There is only one joint per pair of weights, and it's gliding on a supporter. I think, instead of joints and slots, I will use disks. The idea is to use software, like the WM2D and with the help of software to guid the weights, so that there ...
by cyberdust
Thu Feb 11, 2010 8:47 pm
Forum: General Discussion
Topic: movable slot joints
Replies: 6
Views: 2177

re: movable slot joints

The weights (yellow circle, pairs of them) are on a slider, connected with slots to a longer blue rectangular shape. This shape again is fixed on a wheel (greater yellow circle on the background). The weights are lifted by the movement along a slot (blue greater circle). The slider is connected to t...
by cyberdust
Thu Feb 11, 2010 7:49 pm
Forum: General Discussion
Topic: movable slot joints
Replies: 6
Views: 2177

movable slot joints

According to WorkingModel 2D, it looks it works. http://img.photobucket.com/albums/v494/CyberDust/wm21.jpg After a turn clockwise of 30°, we get the position http://img.photobucket.com/albums/v494/CyberDust/wm22.jpg The only problem seems to be, the slot joint, circled in the first image, must jump...
by cyberdust
Thu Dec 18, 2008 8:51 pm
Forum: General Discussion
Topic: angular linkage
Replies: 13
Views: 4775

re: angular linkage

This is an example. Yesterday it was easier to construct, today I had to make many tries. http://img.photobucket.com/albums/v494/CyberDust/BESSLER1.jpg Both have a weight of 60kg. At the beginning they are oscillating, closing the gap more and more, and finally it gets a push and are spinning for ev...
by cyberdust
Thu Dec 18, 2008 4:30 pm
Forum: General Discussion
Topic: angular linkage
Replies: 13
Views: 4775

re: angular linkage

I have only a demo version of wm2d, so I cannot post any file here. But it is easy to build your own file and see yourself what I saw. I have discovered, this happens only by "none air resistance". But then again, it will be no challenge to let it run in a vacuum. How much energy you'll ge...
by cyberdust
Wed Dec 17, 2008 8:14 pm
Forum: General Discussion
Topic: angular linkage
Replies: 13
Views: 4775

re: angular linkage

Yes, something like that. BTW- I made a try with Working Model, and it became a perpetual motion machine. ;) Another proof, WM is not to be trusted.
by cyberdust
Tue Dec 16, 2008 10:53 pm
Forum: General Discussion
Topic: angular linkage
Replies: 13
Views: 4775

re: angular linkage

I am thinking of a similar device like a pantograph or a Peaucellier-Lipkin linkage. In pantograph the length of a rod can be doubled, the distances etc. but the angles remain all the same. I do not expect to amplify the energy, though it will not harm me at all.
by cyberdust
Tue Dec 16, 2008 9:58 am
Forum: General Discussion
Topic: angular linkage
Replies: 13
Views: 4775

angular linkage

There are many linkages, which double the lever, the torque, even a circular movement to transform it to a straight line. But I cannot find a linkage, that acts on the angle. I need a linkage, that will double the angular speed of a rod or of a rotational movement. Is there none? I can think of a ge...
by cyberdust
Mon Dec 08, 2008 8:42 am
Forum: General Discussion
Topic: Mechanical power calculation (help needed)
Replies: 4
Views: 2144

re: Mechanical power calculation (help needed)

Working Model is somewhat cheating. I made many models with my idea, and all worked fine. But then, theory says, it should not. I have only a demo version of WM2D, so I can't save it and post here. Calculations with excel shows also that it will work. Surely, I am missing something. Before I venture...
by cyberdust
Thu Nov 20, 2008 11:07 am
Forum: General Discussion
Topic: Mechanical power calculation (help needed)
Replies: 4
Views: 2144

re: Mechanical power calculation (help needed)

I am also in need for a help http://img.photobucket.com/albums/v494/CyberDust/BarsPP23.jpg There are two rods with weights, connected together with a gear and the left side is fixed to a wheel. The wheel is turning right-wise. When the right side is in 0°, it strikes another rod, which is outside t...
by cyberdust
Tue Jul 24, 2007 12:43 pm
Forum: General Discussion
Topic: will it work?
Replies: 2
Views: 1865

re: will it work?

Your analysis is really marvelous. It's now clear why it won't work. I thank you very much. The original Idea was to have doubled weights on the corners, and by this it was supposed to be self-starting, without any help. In a simple model in wm2d I saw that it will never flip over, and my next idea ...