- Structure CAD


- 3


SCAD li YI (19.17). w = 1/l (/), q = w/2p () = 1/q.

Z(t) =

(t)Yi (19.18)

(19.12) yi(t). , ,

d2 yi /dt2 + 2xi dyi /dt +wi2 yi = Pi(t)/Mi. (19.19)

Pi(t) = w2 YTi f(t), (19.20)

Mi =

MYi (19.21)

xi , yoi y1i , Zo = Z(0)

Z1 = dZ(0)/dt

yoi =

MZo , y1i =
MZ1 (19.22)

.

yi = exp[-xi wi t] {[(yoi xi wi + y1i)/ wDi] sinwDit + yoi} +

+ (1/wDiMi)

exp[-xi wi (t - t)] sinwDi(t - t)dt , (19.23)