924 
When t > to» 
[ato - sin ot + sin w(t - to)] 
To obtain maximm deformation: 
ae + t i 
Sane: oe oe cos a(t, = t,) =0 
cos ot, = ¢os wt, cos ot + sin at, sin wt, 
1 = cos wt, wot 
(ee {°) 
pe ay sin ot, z 2 
Since t must be > ty, the solution required by Eq. (I=35) is: 
at, 
Oty = 2 + —~ 
Putting Eqe (I-36) into Eq. (I-34): 
a eee at, +2 sin —2. 
kt,® 
and therefore 
-109= 
meal - sin ot a - ma - to) - sin w(t - to) ale - ty) 
° 
(I-33) 
(I-34) 
(I-35) 
(I-36) 
(I-37) 
(I-38) 
