Page 50 - Thomson, William Tyrrell-Theory of Vibration with Applications-Taylor _ Francis (2010)
P. 50
TABLE OF SPRING STIFFNESS (continued)
El
k = I — moment of inertia of cross-sectional area
/ ’
/ = total length
EA
k = A = cross-sectional area
I
GJ
k = J = torsion constant of cross section
Gd*
2 R k = n = number of turns
(AnR^
7>EI
k = k at position of load
48 £ /
k =
192£/
k =
768 £ /
k =
I P
3 Ell y = fÈLnl _ ^2 _ 1,2)
k =
iV 6Eir ^
I—H 6
\2EI
k =
3 El
k =
(/ -I- a)a^
24£7
k =
i ----- ¿7^(3/ -I- 8a)
37
