初学者求教:关于频率的单位
按照help里面的例子里求出来的两阶频率分别为:VALUE= 0.106688374
VALUE=5.03493362
而给出的结果却是:
2.5814
8.3263
不知道是求解错了,还是单位换算的关系,请指教!
[ 本帖最后由 rodge 于 2008-3-11 21:13 编辑 ] 仔细看看是否是哪里输入错误,一般不会出现这样的错误, 命令流是这样的:
/PREP7
ANTYPE,MODAL
MODOPT,REDUC,,,,2
ET,1,COMBIN14,,,2
ET,2,MASS21,,,4
R,1,200 ! SPRING CONSTANT = 200
R,2,800 ! SPRING CONSTANT = 800
R,3,.5 ! MASS = .5
R,4,1 ! MASS = 1
N,1
N,4,1
FILL
E,1,2 ! SPRING ELEMENT (TYPE,1) AND K = 200 (REAL,1)
TYPE,2
REAL,3
E,2 ! MASS ELEMENT (TYPE,2) AND MASS = .5 (REAL,3)
TYPE,1
REAL,2
E,2,3 ! SPRING ELEMENT (TYPE,1) AND K = 800 (REAL,2)
TYPE,2
REAL,4
E,3 ! MASS ELEMENT (TYPE,2) AND MASS = 1 (REAL,4)
TYPE,1
REAL,1
E,3,4 ! SPRING ELEMENT (TYPE,1) AND K = 200 (REAL,1)
M,2,UX,3
OUTPR,BASIC,1
D,1,UY,,,4
D,1,UX,,,4,3
FINISH
/SOLU
SOLVE
*GET,FREQ1,MODE,1,FREQ
*GET,FREQ2,MODE,2,FREQ
页:
[1]