J EI(w")2dx + j N(w')2dx = 0
L L
El 3 El/ 4
2 P.
L/3
P x
21/3
w'Ux) = jiAx2-AqLx)
Nj(x) = —3P U
t z \ 4 1 3 77 _ 2 31 3.
”’"<x) = 3B7(6«:C - 400^ + 1200?i)
lV77(x) = -P
U r
J EI(w")2dx + J ^EI(w”t)2dx — -P J 3(w'I)2dx — P j(w'II)2dx
0 |L 0 \L
_ h + I2 kr h + h
h =
77
200
L2x3
L
t
El
o
-p_ 2002
A-^Lx3 + ^L2x2)dx
2687 q2L5 , q2L5
---= 2.21152 • 10“3 --
1215000 El El
TLu) \ = iii (l*. _ 2L& + J™_L,
200 / 3 El \ 20 800 120000
9203 q2L5 7290000 ~eT
o
J3(u,',fdx = §fj / (lx» - ^Lx2 + ^ | dx 0 o
2