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Unformatted text preview: Sec_2.5.qxd 9/25/08 3:00 PM Page 177 SECTION 2.5 Thermal Effects Fk 0.174 kips ; also the compressive force in
the tube Q
(b) force in tube Ft
(c) Final length of tube & spring Lf L
Lf L Qft t( T)L Lf (d) Set Q 0 to find T required to reduce spring
force to zero ; 11.99 in. c1 c2 ; 177 ¢ Treqd
Treqd 1 d
a kL1 + a t L2 141.6 F since t
k, a temp.
drop is req’d to shrink
tube so that spring force
goes to zero ...
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This note was uploaded on 12/22/2011 for the course MEEG 310 taught by Professor Staff during the Fall '11 term at University of Delaware.
- Fall '11