Can only one help me build prototype or simulation

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Discussion Overview

The discussion revolves around a proposed system consisting of a hollow cylinder and a massive sphere, focusing on the energy dynamics involved when the system is tilted and rotated. Participants explore the calculations needed for energy required to rotate the system and the energy acquired by the sphere, while also addressing the implications of the setup regarding perpetual motion concepts.

Discussion Character

  • Debate/contested
  • Technical explanation
  • Mathematical reasoning

Main Points Raised

  • One participant describes a hollow cylinder with specific dimensions and a massive sphere placed inside, seeking to calculate energy requirements for rotation at a specified speed.
  • Another participant expresses concern that the setup resembles a perpetual motion machine (PMM), questioning the source of energy in the system.
  • A request for clarification on the term "critical angle" is made, emphasizing the need to understand the distances from the center to the centers of mass of the system components.
  • One participant defines the critical angle as the maximum tilt before tipping occurs, explaining its relevance to stability and the forces involved.
  • Clarifications are made regarding the material of the sphere, correcting it from platinum to iron, and asserting that the energy source is external.
  • Concerns about the nature of the discussion lead to a warning about potential moderation due to PMM implications.

Areas of Agreement / Disagreement

Participants express disagreement regarding the nature of the proposed system, with some viewing it as a potential PMM while others focus on the calculations and definitions involved. The discussion remains unresolved, particularly concerning the energy dynamics and the implications of the critical angle.

Contextual Notes

There are unresolved questions regarding the definitions and calculations related to the centers of mass and the critical angle, as well as the implications of the energy source for the system.

Efficientplus
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TL;DR
Asking for help with simulation before building a prototype
A hollow cylinder with dimensions 2 m radius,6 m height and weight 200kgs

And a massive sphere weight 2000kgs with radius 30cm is placed inside the cylinder and is free to rotate.

Now the whole system is tilted to it's critical angle and is rotated around a circular track. The circumference of cylinder base and circular track is same .

Calculate the energy required to rotate the system at 5 radius/sec and also calculate the energy acquired by the sphere inside the cylinder
 
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This sounds suspiciously like a perpetual motion device. PMMs are a forbidden subject here. This thread is almost certainly going to be locked, but let's be sure.

What is the source of the energy in your system?

(And where will you get this 2 foot sphere of Platinum?)
 
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Efficientplus said:
the whole system is tilted to it's critical angle and is rotated around a circular track.
What exactly do you mean by "critical angle"? And what are the distances from the center to the centers of mass of the system, the cylinder, and the sphere?
Calculate the energy required to rotate the system at 5 radius/sec and also calculate the energy acquired by the sphere inside the cylinder
This will require knowing how the centers of mass of the various components are moving, which is why I'm asking
 
DaveC426913 said:
This sounds suspiciously like a perpetual motion device. PMMs are a forbidden subject here. This thread is almost certainly going to be locked, but let's be sure.

What is the source of the energy in your system?

(And where will you get this 2 foot sphere of Platinum?)

The sphere is made of iron and not platinum.
The source of energy is external. I want to calculate the energy required to rotate the system vs the energy acquired by the sphere which is rotating inside the cylinder
 
Nugatory said:
What exactly do you mean by "critical angle"? And what are the distances from the center to the centers of mass of the system, the cylinder, and the sphere?
This will require knowing how the centers of mass of the various components are moving, which is why I'm asking
The critical angle of tilt is the maximum angle at which an object can be tilted before it begins to tip over. This angle is crucial for understanding the stability of the object. It’s determined by the balance of forces acting on the object, especially the gravitational force and the supporting base.

For example, if you tilt a cylinder, the critical angle is where the center of mass aligns with the edge of the base, just before it would cause the cylinder to fall. This angle depends on the height of the object's center of mass and the width of its base.

tan⁡(θc)=hCoMb/2
Where hCoM is the height of the center of mass and b is the width of the base.

The concept is widely used in engineering and physics to design stable structures and systems, ensuring they don’t tip over easily
 
Thread closed for Moderation...
 
Thread will remain closed for now, since it appears that this may be a PMM discussion attempt, which is against the PF rules:
Forbidden Topics said:
Pseudoscience, such as (but not limited to):
Perpetual motion and "free energy" discussions (see our Insights Article here)
http://en.wikipedia.org/wiki/Perpetual_motion
http://www.skepdic.com/freeenergy.html
http://www.skepdic.com/perpetual.html
@Efficientplus -- If this is not about a PMM or over-unity mechanism, please send me Personal Message (PM -- click on my avatar and Start a Conversation). Let me know the context of your post and the discussion, and I may be able to help you get the conversation going again.
 

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