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楼主 |
发表于 2008-10-16 22:18
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模态分析后,输出窗口中显示:
***** PARTICIPATION FACTOR CALCULATION *****ROTZ DIRECTION
CUMULATIVE
MODE FREQUENCY PERIOD PARTIC.FACTOR RATIO EFFECTIVE MAS
S MASS FRACTION
1 0.429296 2.3294 0.16787E+06 1.000000 0.281806E+1
1 0.451739
2 0.436928 2.2887 -76546. 0.455979 0.585924E+1
0 0.545664
3 0.485836 2.0583 95530. 0.569069 0.912601E+1
0 0.691955
4 1.20699 0.82851 -33380. 0.198842 0.111421E+1
0 0.709815
5 1.59381 0.62743 -0.15751E-01 0.000000 0.248079E-0
3 0.709815
6 1.86664 0.53572 -88207. 0.525448 0.778056E+1
0 0.834539
7 1.90108 0.52602 40252. 0.239782 0.162025E+1
0 0.860512
8 1.91113 0.52325 49023. 0.292027 0.240325E+1
0 0.899036
9 2.24817 0.44481 3481.2 0.020738 0.121191E+0
8 0.899230
10 2.56085 0.39049 16174. 0.096351 0.261614E+0
9 0.903424
11 3.31979 0.30122 -16431. 0.097876 0.269962E+0
9 0.907752
12 4.14477 0.24127 -2.0166 0.000012 4.06672
0.907752
13 4.39289 0.22764 -27702. 0.165019 0.767395E+0
9 0.920053
14 4.39403 0.22758 59845. 0.356492 0.358138E+1
0 0.977463
15 4.40970 0.22677 -34861. 0.207667 0.121531E+1
0 0.996944
16 4.43549 0.22545 9666.6 0.057583 0.934430E+0
8 0.998442
17 4.47178 0.22362 -1.1437 0.000007 1.30796
0.998442
18 4.61076 0.21688 -2050.4 0.012214 0.420407E+0
7 0.998510
19 4.96660 0.20134 -7.1991 0.000043 51.8270
0.998510
20 5.09249 0.19637 9642.0 0.057437 0.929688E+0
8 1.00000
SUM OF EFFECTIVE MASSES= 0.623826E+1
1
注:mode模态,FREQUENCY 频率,PERIOD周期?PARTIC.FACTOR 振型参与系数, RATIO 振型参与系数比?, EFFECTIVE MASS有效质量,MASS FRACTION?
其中:PERIOD,RATIO,MASS FRACTION分别指什么?
谐响应分析中,模态参与系数可理解为每个模态对总的响应的贡献。那么模态分析中的参与系数是指什么呢?请大家帮忙啊。 |
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