in order for us engineer types to start brainstorming useful solutions, it is necessary define "rocking" in terms that engineers understand:
Do you want a pivot point down low, such as in a rocking chair?
Do you want a pivot point up high, such as in a hammock?
Or is back and forth, such as a...
Go back and read Post #2 VERY CAREFULLY. Especially the part about fan curves, including the link.
Hint: You calculate the fan curve, then superimpose the system curve. The intersection is where it will operate.
The OP is unable to properly do a simple P/A calculation, and has not been able to properly describe the system. Therefore, they certainly do not understand the need for, and how to, calculate such details as the safety factor against buckling. A 2000 lb mass 20 feet in the air is dangerous...
After 74 posts, about 20 of which discuss the physics of energy conversion, I will summarize the physics of energy conversion:
First law of physics: You can't win.
Second law of physics: You can't even break even.
Third law of physics: You can't get out of the game.
All energy conversion...
The free body diagram has a vertical force ##Mg##, a force ##Ma## in the direction of motion, and a force perpendicular to the direction of motion. The only forces that affect the angular acceleration are ##Mg## and ##Ma##, and those forces are not affected by the angular velocity. Your plot...
Fortunately, somebody has done this:
That is the power that these animals will deliver over a normal work day under ideal conditions. Ideal conditions for most draft animals would be walking in a straight line on level ground that is soft enough to get traction and hard enough to not waste...
Sounds like you need a coauthor, or at least advice from a person who would quality to be a coauthor. I know that, while some of my papers needed the coauthor(s) to be publishable, all of them benefited from advice from qualified people.
Possible coauthors start with the authors of the...
What type of motor are you using to drive the gear? Each of these are controlled differently, and load the gear differently. This would help us to interpret what you were told on Reddit.
1) A small servo typically controlled by an Arduino?
2) An industrial servo motor?
3) An induction...
Your list is of severe overload or poorly designed joint failures. A common real world failure mode is bolt loosening due to intermittent loss of preload caused by impact or vibration. A classic example is the old model Ruger Super Blackhawk 0.44 Magnum revolver. A required accessory was a...
Fentanyl has a lethal dose of about 2 milligrams (0.002 grams), and is currently responsible for about 75,000 accidental deaths per year in the US. One of those deaths was the son of a friend. It qualifies on both the total number of deaths and on the lethal dosage.
Industrial servomotors are available in that size range. One such manufacturer (not the only one) is Allen-Bradley. Check out this link: https://www.rockwellautomation.com/en-us/products/hardware/allen-bradley/motion-control/rotary-servo-motors/mma-series-motors.html. Click into the technical...
Since a circle is a limiting case of an ellipse, just cannonball into the center of a circular pool, and find if the waves come back and fling you up. Or drop something into the center of a round bucket of water.
Your PDF shows what appears to be a centrifugal blower, but does not show what we need to know:
1) A detailed drawing of the portion of the shaft around the seal, the blower housing around the seal, and the seal housing.
2) What are you sealing - is it a liquid or gas? What liquid or gas?
3)...
I once designed a four bar linkage. I first did a literature search looking for an analytical procedure, and found nothing that was of practical use. So that left trial and error, but not random trial and error. It was a series of steps:
1) Define the desired motion with a sketch
2) Write a...