[热点讨论]free-field边界问题 [复制链接]

代码如下：set dyn=on large r5 yO5W  
ini xvel=0 yvel=0 zvel=0 i2PZ'.sL  
ini xdis 0 ydis 0 zdis 0 5/MED}9C(  
free x y z range y -.1 .1 O>V(cmqE`  
def setup ;S JF%@x  
omega = 4.0 * pi vZkXt!%)  
alfa = 2.2  KG8W8&q  
beta = 3.75e-1 fg&eoI'f  
gamma = 8.0 u9]1X1wV  
end Y"!uU.=xJ  
def wave L.B~ax.|Z  
wave = sqrt(beta*exp(-alfa*dytime)*dytime^gamma)*sin(omega*dytime) ll<mE,  
end kdcQw7G  
setup zOGR+Gq_Z  
apply xacc=1.0 hist=wave  range  y -.1 .1 %0XvJF)s  
apply ff KDey(DN:  
/IR#A%U  
hist gp xvel 140,0,0 (}gcY  
hist gp xvel 200,98,0 #$'FSy#  
hist gp yvel 200,98,0 fbC~WV#  
hist gp xdis 122,41,0 M35Ax],:^  
hist gp xdis 122,41,40 Bo r7]#  
hist gp ydis 122,41,0 ^$Krub{|  
hist gp ydis 122,41,40 8_xLl2  
hist dytime S~3\3qt$  
hist wave mqFq_UX/T  
set dyn damp local 0.15 ;(approx 5% damping) s[AA7>]3  
solve age 4 M{Gxjmdx  
save dam3.sav (C S8(C4[  
X:=c5*0e  
怎末会出现 unknown fatel exception 啊？困惑好长时间不能解决 希望高手帮忙 ut&/\k=N  

声明下y是竖直方向