Vibration/Centrifugal Force Question

Click For Summary
SUMMARY

The discussion centers on calculating the centrifugal force generated by an electric motor running at 1000 RPM with eccentric weights mounted on both sides. The total weight is 16.8 kg, with 8.4 kg on each side, and the radius from the center of the shaft to the end of the weight is 103 mm. It is clarified that "generated force" should be measured in Newtons, with 1 kgf equating to 9.807 N. The conversation emphasizes the importance of using correct units in mechanical calculations.

PREREQUISITES
  • Understanding of centrifugal force calculations
  • Familiarity with RPM and its impact on force generation
  • Knowledge of unit conversions between kilograms and Newtons
  • Basic principles of vibration mechanics
NEXT STEPS
  • Research centrifugal force formulas and calculations
  • Learn about the effects of RPM on force generation in rotating systems
  • Study unit conversions in physics, specifically between kgf and Newtons
  • Explore practical applications of eccentric weights in vibration projects
USEFUL FOR

Engineers, mechanical designers, and students involved in vibration analysis and centrifugal force calculations will benefit from this discussion.

svansvan
Messages
2
Reaction score
0
Hello

I am making a vibration project which requires me to mount eccentric weights on both sides of an electric motor. I must submit the "generated force(in Kg)" by this motor.The RPM of motor = 1000
Total weight on both sides of the motor = 16.8Kg (8.4Kg on both sides)
The radius(distance from the center of the shaft to the end of the weight) = 103 mmWhat will be creation of Centrifugal force when this motor is run at 1000 RPM ??Dhiraj
 
Physics news on Phys.org
Where are you going to locate these weights? At what radius?

Think about the problem of tension in a string holding a rock and being swung in a circle. Your problem is similar.
 
svansvan said:
I must submit the "generated force(in Kg)" by this motor.
This doesn't make sense. "Generated force" is measured in Newtons, not kilograms.
 
Dale, it does if you work in the bastard (old) metric system that measured forces in kilograms. This is exactly analogous to measuring mass in pounds. I certainly don't recommend this, but I have to recognize it when I see it happening.
 
So is a "1 kg force" equal to 1 N or 9.8 N?
 
Dale, it is the later, 1 kgf = 9.807 N.
 
Dale, there is also the perhaps more common gram-force, such that 1 gf = 980.7 dynes.
 

take a look at this video. The motor has to be used like this. To vibrate certain appratus
also look at this image for weight placement
xx.JPG
gthanks
 

Similar threads

  • · Replies 8 ·
Replies
8
Views
2K
Replies
2
Views
3K
  • · Replies 74 ·
3
Replies
74
Views
8K
  • · Replies 5 ·
Replies
5
Views
4K
  • · Replies 5 ·
Replies
5
Views
5K
  • · Replies 12 ·
Replies
12
Views
4K
  • · Replies 4 ·
Replies
4
Views
6K
  • · Replies 17 ·
Replies
17
Views
7K
  • · Replies 8 ·
Replies
8
Views
738
  • · Replies 9 ·
Replies
9
Views
4K