Search found 38 matches
- 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...
- 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 ...
- 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...
- 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...
- 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 ...
- 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...
- 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...
- 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...
- 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...
- 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.
- 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.
- 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...
- 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...
- 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...
- 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 ...