X hits on this document

Powerpoint document

The Space Elevator from Science Fiction to Engineering - page 33 / 50

137 views

0 shares

0 downloads

0 comments

33 / 50

The implication of the last graph

If the static coefficient of friction is as low as 0.1, wheels on a 900 kg climber must be compressed together with a total force of 10,000 lbs (5 tons)

= .1 is right in the middle of the expected range for coefficient of friction

Lower would make the ribbon too slippery for traction

< 0.1 is characteristic of sliding bearing materials

Document info
Document views137
Page views137
Page last viewedFri Dec 09 11:45:22 UTC 2016
Pages50
Paragraphs513
Words2829

Comments