Recently I have developed an interest in NASA's Advanced Resistive Exercise Device(ARED) because of its ability to apply an almost constant resistance in normal and microgravity. For anyone who isn't familiar with it, here is a link to learn more about it:
Link
I have found that the ARED...
That is something you will have to decide. I think there has been more than enough information provided in this thread and we never want to take away an opportunity for someone to learn/come to a conclusion on their own. Think about what the Iyy and Ixx values measure as phamENG pointed out...
It sounds like you are using the formula 1/12 bh^3. Here b will be the measurement that is parallel with the x-axis I believe. See the image below.
The .124 measurement seems like it would be a thickness measurement compared to 12. Check out this link for more about the moment of inertia:
Link
I don't have a specific motor in mind, it was just something I was thinking about in my spare time. It probably wouldn't be a self-locking one or have a mechanical break. If you removed 5 kg from the object you were trying to lift, the motor would be able to pull the object up.
It is good to...
That equation does seem a little familiar [wink]. I can see that it works on paper but was wondering if it held up in application. I know that it wouldn't defy basic physics/statics, but am questioning if the electric motor or controller would hold up? If you take the motor part out of it it is...
Do electric hoist/lift motors apply a constant force to the weight they are lifting? What would happen if the force translated from the motor torque was the same as the weight of the object at a position off the ground? In other words, the force pointing up is equal to the weight pointing down...
The pipe will provide an initial expansion of .15m which is elastic and then a maximum plastic elongation of about .35m that occurs throughout the life of the pipe. The top support of the pipe holds around 3/4 of the pipe weight, while the bottom holds the other 1/4. These statistics should...
I think this setup is simple enough to do by hand and without CAD since I am looking for somewhat general concept advice rather than something specific to my project. I have attached both PDF and PNG files just in case. Let me know if there are any viewing issues...
I am working on a project to support a large pipe during thermal expansion. Most of the weight will be supported from the top, but a constant portion of the weight needs to be supported from the bottom to minimize permanent thermal expansion without causing a buckle at the top. I originally...
