1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Balancing of rotating masses

  1. Oct 24, 2012 #1

    I have a shaft rotating at 1500 rpm. the two bearing supports at either end of the shaft, A and B, have reactions of 5kN and 3kN respectively. I need to add a single balancing mass at a point along the length of the shaft inorder to balance the shaft and hence make the bearing reactions zero.

    The shaft is 2 meters long. The balancing mass is positioned at 180 degrees to the bearing supports and has to be centred 200 mm from the centre of the shaft.

    Is the first step of the question to take moments about one of the bearing reactions?

    Thanks :-)
  2. jcsd
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Can you offer guidance or do you also need help?
Draft saved Draft deleted