nsel,s,loc,x,0.31242 type,3 real,3 mat,2 esurf esel,all nsel,all
! flag interface as fluid-structure interface nsel,s,loc,x,0.26035 esel,s,type,,2 sf,all,fsi,1 nsel,all esel,all FINISH
! enter solution module /SOLU
ANTYPE,harmic! select harmonic analysis hropt,full f,19,fx,1000. f,1019,fx,-1000. harfrq,34.,38. nsubst,100 kbc,1 SOLVE
FINISH /post26 plcplx,0
nsol,2,1,u,x,d1ux store conjug,3,2 prod,4,2,3 sqrt,5,4
*get,uxmx,vari,5,extrem,tmax
/COM ------------------------------------------------------------- /COMExpected Result: /COM
/COM The following \
/COM ------------------------------------------------------------- *status,uxmx finish
5.10 例2：室内声场分析（命令方法）
此例的问题示例了利用FLUID30单元预测一个典型盒子表示房间的声学驻波模式。吸声材料放在盒子的下表面，圆筒表面的振动结构放在盒子的右上角。此问题将确定结构在激励频率为80Hz时振动的声压波模式。
/batch,list
/com, Harmonic Analysis - Room Acoustics /PREP7
/TITLE,Room Acoustic Analysis
ANTYPE,HARM
ET,1,30! Acoustic elements in contact with walls and vibrating surface
ET,2,30,,1Acoustic elements in interior (not in contact with walls) ! Set parameters for mesh generation XDIV=29! Number of divisions along x-axis YDIV=19! Number of divisions along y-axis ZDIV=1! Number of divisions along z-axis CDIV=2! Number of divisions along radius ! Dimensions of the room LEN=27 HGT=20 RAD=0.9
! Mesh generation K,1 K,2,LEN K,3,LEN,HGT K,4,,HGT K,5,,,-1 K,6,LEN,,-1 K,7,LEN,HGT,-1 K,8,,HGT,-1 L,1,5,1 L,2,6,1
L,3,7,1 L,4,8,1
CIRC,3,RAD,7,2,90,2 ADRAG,5,6,,,,, 3 PIO4=ATAN(1) LENC=COS(PIO4) LENC=LENC*RAD HGTC=HGT-LENC LENC=LEN-LENC K,15,,HGTC K,16,,HGTC,-1 K,17,LENC K,18,LENC,,-1 L,1 ,17,XDIV L,10,15,XDIV L,11,4 ,XDIV L,17,10,YDIV L,15, 1,YDIV L,2 ,9 ,YDIV L,5 ,18,XDIV L,13,16,XDIV L,14,8 ,XDIV L,18,13,YDIV L,16,5 ,YDIV
L,6 ,12,YDIV ESIZE,,CDIV
V,1 ,17,10,15, 5,18,13,16 V,15,10,11,4 ,16,13,14,8 V,17,2 ,9 ,10,18,6 ,12,13 VMESH,ALL
! Material properties
MP,DENS,1,2.35E-3! (Rho) density of air (lb/ft**3) MP,SONC,1,1100.0! (C) speed of sound in air (ft/sec) MP,MU,1,0.04! (Beta) absorption coefficient of the walls ! (\MP,DENS,2,2.35E-3 MP,SONC,2,1100.0
MP,MU,2,0.70! (Beta) absorption coefficient of ! the absorbing material on the floor ! (\MP,DENS,3,2.35E-3 MP,SONC,3,1100.0
MP,MU,3,0.0! (Beta) zero absorption coefficient for interior elements
NSEL,S,LOC,Y,0.0 NSEL,R,LOC,X,12,15 ESLN MAT,2