=154687.5
m4
Exercise 2-1
或者:
Ixx=
2∫BB?2/b2 y2Ldy
Iy
y
xbdx
2
Exercise 2-2
某挖泥船的水线面如图,其中L=30m, B=8.2m, l=12m, b=1.5m, l1=2m, l2=1.5m, b1=1.2m, b2=1.5m。求该水线面面
积及形心坐标。