3、楔形体受各种荷载 1)集中力偶=r(0)=0() d04+492 P=Acos 20+Bsin 20+C0+D 2)集中力q=rf(O)=nf() P A(f(4(0)+2f"(0)+f(0)=0 0 P=r(Acos 8+Bsin 8+C8 cos 8 + desin e3、楔形体受各种荷载 y x o M   a b r c r  r  1）集中力偶 ( ) ( ) 0  = r   =  4 0 2 2 4 4 + =     d d d d  = Acos 2 + Bsin 2 +C + D 2）集中力 x P o y    r r r  ( ) ( ) 1  = r f  = rf  [( ( ) 2 ( ) ( )] 0 1 (4) '' 3 f  + f  + f  = r sin ) ( cos sin cos        D r A B C + = + +