Rotor Tip Weight (Centrifugal Force)

AI Thread Summary
To determine the centrifugal force at the tip of a 35ft diameter rotor rotating at 392rpm, the formula F = m * ω² * r can be used, where F is the centrifugal force, m is the mass, ω is the angular velocity in radians per second, and r is the radius. Factors such as blade thickness and weight may also influence the overall dynamics but are not directly part of the centrifugal force calculation. The pilot's skepticism about the rotor tip weight being measured in tons highlights a common misconception in rotor dynamics. The discussion emphasizes the importance of understanding the physics behind rotor mechanics. Accurate calculations are essential for safe and effective rotorcraft operation.
Heloego
Messages
2
Reaction score
0
What formula would one use to determine the centrifugal force at the tip of a rotor of 35ft diameter, rotating at 392rpm?
Would any other factors be necessary, such as blade thickness, weight, etc?

A pilot I work with doesn't believe the weight at the rotor tip would be measured in tons.
I was given the formula many years ago by an instructor, but it has been long forgotten. :-)
 
Engineering news on Phys.org
Never mind. Just found it. (sheepish)
 
Posted June 2024 - 15 years after starting this class. I have learned a whole lot. To get to the short course on making your stock car, late model, hobby stock E-mod handle, look at the index below. Read all posts on Roll Center, Jacking effect and Why does car drive straight to the wall when I gas it? Also read You really have two race cars. This will cover 90% of problems you have. Simply put, the car pushes going in and is loose coming out. You do not have enuff downforce on the right...
I'm trying to decide what size and type of galvanized steel I need for 2 cantilever extensions. The cantilever is 5 ft. The space between the two cantilever arms is a 17 ft Gap the center 7 ft of the 17 ft Gap we'll need to Bear approximately 17,000 lb spread evenly from the front of the cantilever to the back of the cantilever over 5 ft. I will put support beams across these cantilever arms to support the load evenly
Thread 'Physics of Stretch: What pressure does a band apply on a cylinder?'
Scenario 1 (figure 1) A continuous loop of elastic material is stretched around two metal bars. The top bar is attached to a load cell that reads force. The lower bar can be moved downwards to stretch the elastic material. The lower bar is moved downwards until the two bars are 1190mm apart, stretching the elastic material. The bars are 5mm thick, so the total internal loop length is 1200mm (1190mm + 5mm + 5mm). At this level of stretch, the load cell reads 45N tensile force. Key numbers...

Similar threads

Back
Top