CALCS PROC026
POINT MASS LOADING

NOTATION

Xm Ym Zmcoordinate, motion reference point
Fx y zacceleration factor, translation
Arx y zacceleration, rotation
Xl Yl Zlcoordinate, load reference point
X Y Zcoordinate, point mass
Wmass, point
Px y zforce, parallel to axis
Mx y zmoment, about axis at load reference point

APPLICATION

Rigid body subject to translational & rotational accelerations

OUTPUT

Loads at a reference point

SEE ALSO

PROC043 PROC049

THEORY

See proc

GUIDANCE

The PROC is useful in providing the loading state at load reference point and the point force associated with the individual masses. This is a single case PROC.

INPUT FORMAT

LET Xm=:Ym=:Zm=:Fx=:Fy=:Fz=:Arx=:Ary=:Arz=:Xl=:Yl=:Zl=
LET X=:Y=:Z=:W=:PROC026

EXAMPLE

Call Statement

LET Xm=2350:Ym=1005:Zm=2793:Fx=.43:Fy=1.56:Fz=.2:Arx=.2:Ary=.15:Arz=.3:Xl=Xm+5030:Yl=Ym+2033:Zl=Zm+1000
LET X=Xl+2000:Y=Yl+3000:Z=Zl+1000:W=4.5:PROC026

Output

PROC026 POINT FORCE LOADING, Rev 280995
Px= W*(-Fx+(-Ary*(Z-Zm)+Arz*(Y-Ym)))= 5443
Py= W*(-Fy+(+Arx*(Z-Zm)-Arz*(X-Xm)))= -7698
Pz= W*(-Fz+(-Arx*(Y-Ym)+Ary*(X-Xm)))= 214.6
Mx= -Py*(Z-Zl)+Pz*(Y-Yl)= 8.341E6
My= +Px*(Z-Zl)-Pz*(X-Xl)= 5.013E6
Mz= -Px*(Y-Yl)+Py*(X-Xl)= -3.172E7
END026