Stewart platform on tower crane

AI Thread Summary
The proposed Stewart platform system for tower cranes aims to enhance load control by utilizing robotic winches to adjust cable lengths, potentially reducing load sway and improving positioning accuracy. While the fixed cable lengths may help restrain longitudinal sway, lateral sway remains a concern, as it could still occur perpendicular to the platform's plane. The discussion highlights the need for further analysis on how effectively the system can mitigate sway and improve operational precision. Participants are seeking insights on the advantages and disadvantages of this innovative approach. Overall, the feasibility of the Stewart platform's implementation in tower cranes requires careful consideration of its sway control capabilities.
DC988
Messages
1
Reaction score
0
Looking for a bit of help on finding some advantages and disadvantages of using this proposed stewart platform (cable) system (James Albus invention) on a tower crane. How would it improve load control? Would it genuinely stop the load from swaying? Would it allow for more accurate positioning of the load. The current idea is to use robotic winches to extend the lengths of the 6 cables to control the position of the load platform.

Just looking for some general opinions on this.

Here is the configuration:

ec21074b860bc3f26931298e86b30db8.png
 
Engineering news on Phys.org
It looks to me that longitudinal sway is possibly restrained by cable extensions if the length is fixed at 77 and 23, but that lateral sway (perp to the plane of the fig) is still possible about the longitudinal axis passing through 77 and 23.
 
Thread 'I need a concave mirror with a focal length length of 150 feet'
I need to cut down a 3 year old dead tree from top down so tree causes no damage with small pieces falling. I need a mirror with a focal length of 150 ft. 12" diameter to 36" diameter will work good but I can't think of any easy way to build it. Nothing like this for sale on Ebay. I have a 30" Fresnel lens that I use to burn stumps it works great. Tree service wants $2000.
Hi all, i have some questions about the tesla turbine: is a tesla turbine more efficient than a steam engine or a stirling engine ? about the discs of the tesla turbine warping because of the high speed rotations; does running the engine on a lower speed solve that or will the discs warp anyway after time ? what is the difference in efficiency between the tesla turbine running at high speed and running it at a lower speed ( as fast as possible but low enough to not warp de discs) and: i...
Back
Top