View Single Post
  #19  
Old 03-20-2020, 11:52 PM
andrewwynn's Avatar
andrewwynn andrewwynn is offline
Member
 
Join Date: Jun 2015
Location: Racine, WI
Posts: 10,817
andrewwynn will become famous soon enough
That split rod design caused one of the worst human casualty engineering failures in a hotel atrium where they split the single rod so they didn’t have to thread the nut dozens of feet but then the nut on the bottom of the top level is holding twice the load.

I’ve made a similar engineering goof when not factoring in that a pulley pulls with twice the load!

If you lift 100kg from the ground by pulling down through a pulley, the pulley gets over 200kg of force: 100 from you 100 from the load and any losses.
__________________
2011 E70 • N55 (me)
2012 E70 • N63 (wife)
Reply With Quote

Sponsored Links