PPT Slide
PREPARING A BASIC ACSL MODEL
PROGRAM OSCILLATOR $”ACSL INPUT FILE….”
CONSTANT M=0.02,K=1.96,B-0.05 $”<==Physical parameters”
CONSTANT XDIN=0.0,XIN=0.04 $”<==Initial conditions”
CONSTANT TSTP=5.0 $”<==Final time”
CINTERVAL CIN=0.05 $”<==time step interval”
DERIVATIVE $”<==start of derivative statements”
XDD=(B*XD-K*X+F)/M $”<==second order derivative, acceleration”
XD=INTEG(XDD,XDIN) $”<==first order derivative, Velocity”
X=INTEG(XD,XIN) $”<==displacement”
TERMT (T .GE. TSTP) $”<==end condition”