MT135
Moderator: scott
re: MT135
agor95
Here is a wheel I did the springs similar to what you are showing but between two rods. I still needed the moving weights to get it to move but is was close but not enough for this one.
Here is a wheel I did the springs similar to what you are showing but between two rods. I still needed the moving weights to get it to move but is was close but not enough for this one.
"Our education can be the limitation to our imagination, and our dreams"
So With out a dream, there is no vision.
Old and future wheel videos
https://www.youtube.com/user/ABthehammer/videos
Alan
So With out a dream, there is no vision.
Old and future wheel videos
https://www.youtube.com/user/ABthehammer/videos
Alan
re: MT135
@AB
As explained with manuscript translators rating the texts.
With the virtual translators creating virtual simulations to rate designs.
Then physical translators can give the really important rating.
My goal is to find the operational rotation speed.
Also to define the variables to model a physical device.
That would means the physical operational rotation speed.
P.S. Good Work.
As explained with manuscript translators rating the texts.
With the virtual translators creating virtual simulations to rate designs.
Then physical translators can give the really important rating.
My goal is to find the operational rotation speed.
Also to define the variables to model a physical device.
That would means the physical operational rotation speed.
P.S. Good Work.
re: MT135
I plan to have 3 strain arrows per weight
and 1 torque indicator at the hub.
The 3 strain arrows are
Linear
Gravity
Spring
Notice the weight path has been altered.
and 1 torque indicator at the hub.
The 3 strain arrows are
Linear
Gravity
Spring
Notice the weight path has been altered.
re: MT135
I wanted to check two points.
Note: the hub is invisible to allow viewing.
1. How big a gap do you need between cross bars?
The only limit is the rod width in the hub.
2. What does the dynamic movement look like?
Looking is not the same as proving a device.
Your eyes can trick you. You see what you want to
believe.
Note: the hub is invisible to allow viewing.
1. How big a gap do you need between cross bars?
The only limit is the rod width in the hub.
2. What does the dynamic movement look like?
Looking is not the same as proving a device.
Your eyes can trick you. You see what you want to
believe.
re: MT135
Here are the vector arrows :-
1. Green Gravity acting on the mass.
2. Red Pulling the rod to the center balance
3. Blue Inertia of the mass.
4. White a sum of all three.
At this time the Rotation rate and Rod position are controlled.
1. Green Gravity acting on the mass.
2. Red Pulling the rod to the center balance
3. Blue Inertia of the mass.
4. White a sum of all three.
At this time the Rotation rate and Rod position are controlled.
- Silvertiger
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- Location: Henderson, KY
re: MT135
I took your advice - down loaded the MS software
Ran the recorder and got conflicts.
You know having VPython it models in 3D plus time.
Also you can use 3D glasses or other 3D perspective methods.
Plus graphs
Move 4meg sorry not attached
Ran the recorder and got conflicts.
You know having VPython it models in 3D plus time.
Also you can use 3D glasses or other 3D perspective methods.
Plus graphs
Move 4meg sorry not attached
Last edited by agor95 on Sun Jan 29, 2017 11:49 am, edited 1 time in total.
- Silvertiger
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- Joined: Thu Oct 06, 2011 1:12 pm
- Location: Henderson, KY
re: MT135
These images these are rotating clockwise.
Image 12.
The top weight is in the process of flailing out.
The cross bar is in the process of being shot out like an arrow.
The springs balance the weights gravity and C.F.
So the main motive effect on the top weight is inertia.
The other effects are cancelled.
The bottom weight is the same except the inertia is
more due to the cross bar pivot point.
Combining the to inertia results in positive torque.
Image 13-15
The gravity stress rotates from countering the spring stress to
countering inertia on upward weight.
However gravity rotates to combine with the top weights inertia.
During this the rotation gravity stress reduces on countering the top spring.
Image 16-17
The upward weight contribution to positive torque is trending towards zero.
The inertia is being countered by gravity.
The cross bar is being shot to cause the failing on the other side.
The cross bar shortens reducing torque even more.
The downward weight contributes the larger part of the positive torque.
The connected principle and weights exerting torque dependent on the distance from the pivot principle there could be positive torque.
Image 12.
The top weight is in the process of flailing out.
The cross bar is in the process of being shot out like an arrow.
The springs balance the weights gravity and C.F.
So the main motive effect on the top weight is inertia.
The other effects are cancelled.
The bottom weight is the same except the inertia is
more due to the cross bar pivot point.
Combining the to inertia results in positive torque.
Image 13-15
The gravity stress rotates from countering the spring stress to
countering inertia on upward weight.
However gravity rotates to combine with the top weights inertia.
During this the rotation gravity stress reduces on countering the top spring.
Image 16-17
The upward weight contribution to positive torque is trending towards zero.
The inertia is being countered by gravity.
The cross bar is being shot to cause the failing on the other side.
The cross bar shortens reducing torque even more.
The downward weight contributes the larger part of the positive torque.
The connected principle and weights exerting torque dependent on the distance from the pivot principle there could be positive torque.
Last edited by agor95 on Sun Jan 29, 2017 12:18 pm, edited 3 times in total.
re: MT135
Any VPython questions should be asked in the 'Tech Support' Visual Python thread.
Regards
Regards
- Silvertiger
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- Joined: Thu Oct 06, 2011 1:12 pm
- Location: Henderson, KY
Ok that was rude. I was only asking you because you use it. I know nothing about python since I don't use it and I seldom visit the tech support thread, let alone the topics that I glance over and never remember. So why would I go to tech support over something I don't own nor use, genius? That's like me telling you you're not allowed to tie your elephant to a post, even though you most likely don't own one. So how would you know to have asked to begin with? Get the point? I'm pretty sure it was a straightforward question that deserved a response of the same.
re: MT135
I did a search on Google on the subject 'kinematics' and Python for you before you replied.
There is no out of the box kinematics in python.
Apologies for appearing rude.
There is no out of the box kinematics in python.
Apologies for appearing rude.
-
- Devotee
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- Joined: Wed Oct 27, 2010 7:43 pm
re: MT135
Raj ,
If you take a spirit level , A B ' and draw a line C D , horizontally on a imaginary background , now move the level so that A of the level match D on the line drawn , and extend that line , over and over , you will end up back at where you started the line at C . That tells me , that no matter how far you move a weight horizontally , it never goes up vertically .
If your weight does end up at a increased elevation , you have lifted the weight vertically , and have spent the appropriate amount of energy to do so , and that amount of energy is all you will receive back through gravity , not more , not less .
If you take a spirit level , A B ' and draw a line C D , horizontally on a imaginary background , now move the level so that A of the level match D on the line drawn , and extend that line , over and over , you will end up back at where you started the line at C . That tells me , that no matter how far you move a weight horizontally , it never goes up vertically .
If your weight does end up at a increased elevation , you have lifted the weight vertically , and have spent the appropriate amount of energy to do so , and that amount of energy is all you will receive back through gravity , not more , not less .
re: MT135
Daano, I am not out to convince anybody.
But in passing, just look at this simple drawing:
If you look at it as a vertical plane, it will require more energy to move the lower weight from 6 o'clock upwards.
If you look at it as a horizontal plane, moving the weight will require much less effort.
But in passing, just look at this simple drawing:
If you look at it as a vertical plane, it will require more energy to move the lower weight from 6 o'clock upwards.
If you look at it as a horizontal plane, moving the weight will require much less effort.
Keep learning till the end.