马上注册,结交更多好友,享用更多功能,让你轻松玩转社区。
您需要 登录 才可以下载或查看,没有账号?我要加入
x
第一种是用梁单元BEAM188做的求出模态后又作了谐响应分析,具体命令如下:
/PREP7
!*
ET,1,BEAM188
!*
MPTEMP,,,,,,,,
MPTEMP,1,0
MPDATA,EX,1,,2e8
MPDATA,PRXY,1,,0.3
MPTEMP,,,,,,,,
MPTEMP,1,0
MPDATA,DENS,1,,7.8
!*
SECTYPE, 1, BEAM, RECT, , 0
SECOFFSET, CENT
SECDATA,0.2,0.3,0,0,0,0,0,0,0,0
K,1,0,0,0,
K,2,2,0,0,
K,3,0,1,0,
LSTR, 1, 2
FINISH
/SOL
FINISH
/PREP7
CM,_Y,LINE
LSEL, , , , 1
CM,_Y1,LINE
CMSEL,S,_Y
!*
CMSEL,S,_Y1
LATT,1, ,1, , 3, ,1
CMSEL,S,_Y
CMDELE,_Y
CMDELE,_Y1
!*
FLST,5,1,4,ORDE,1
FITEM,5,1
CM,_Y,LINE
LSEL, , , ,P51X
CM,_Y1,LINE
CMSEL,,_Y
!*
LESIZE,_Y1, , ,20, , , , ,1
!*
LMESH, 1
SAVE
FINISH
/SOL
FLST,2,1,1,ORDE,1
FITEM,2,1
!*
/GO
D,P51X, , , , , ,UX,UY,UZ, , ,
FLST,2,1,1,ORDE,1
FITEM,2,2
!*
/GO
D,P51X, , , , , ,UY,UZ, , , ,
!*
ANTYPE,2
!*
MSAVE,0
!*
MODOPT,LANB,10
EQSLV,SPAR
MXPAND,10, , ,0
LUMPM,0
PSTRES,0
!*
MODOPT,LANB,10,0,0, ,OFF
/STATUS,SOLU
SOLVE
FINISH
第二种是用SOLID185单元做的,材料的参数都是一样的,建模用的是实体模型,约束条件,求解模态的方法也一样,但结果差别却很大,不知道为什么 |