vibration里的模态问题

ck_feng · 发表于 2006-12-5 11:14

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我做的一个刚性系统的振动分析，里边有些运动副用的是碰撞，做出来的系统模态如下，不知道合理不合理，里边前几阶模态就是系统的固有频率吗？还望高手多多指教：
MODE    UNDAMPED NATURAL       DAMPING
  NUMBER       FREQUENCY          RATIO             REAL             IMAGINARY

1       1.757098E-002    1.000000E+000    1.757098E-002    0.000000E+000
2       1.775555E-002    1.000000E+000    -1.775555E-002    0.000000E+000
3       8.373782E-002    1.000000E+000    8.373782E-002    0.000000E+000
4       1.070895E-001    1.000000E+000    -1.070895E-001    0.000000E+000
5       2.962785E-001    1.000000E+000    -2.962785E-001    0.000000E+000
6       3.211229E-001    1.000000E+000    3.211229E-001    0.000000E+000
7       5.471752E-001    1.000000E+000    5.471752E-001    0.000000E+000
8       1.106257E+001    1.000000E+000    -1.106257E+001    0.000000E+000
9       2.539366E+001    1.000000E+000    2.539366E+001    0.000000E+000
10       2.585915E+001    1.000000E+000    -2.585915E+001    0.000000E+000
11       2.722389E+001    1.000000E+000    2.722389E+001    0.000000E+000
12       3.283823E+001    1.000000E+000    -3.283823E+001    0.000000E+000
13       7.661453E+001    1.000000E+000    7.661453E+001    0.000000E+000
14       1.456782E+002    1.000000E+000    -1.456782E+002    0.000000E+000
15       1.648134E+002    1.000000E+000    1.648134E+002    0.000000E+000
16       1.684511E+002    1.000000E+000    1.684511E+002    0.000000E+000
17       2.000200E+002    1.000000E+000    -2.000200E+002    0.000000E+000
18       3.023971E+002    1.000000E+000    -3.023971E+002    0.000000E+000
19       3.587846E+002    1.000000E+000    3.587846E+002    0.000000E+000
20       3.691875E+002    1.000000E+000    3.691875E+002    0.000000E+000
21       3.711046E+002    1.000000E+000    -3.711046E+002    0.000000E+000
22       3.857050E+002    1.000000E+000    3.857050E+002    0.000000E+000
23       3.924729E+002    1.000000E+000    3.924729E+002    0.000000E+000
24       4.272448E+002    1.000000E+000    4.272448E+002    0.000000E+000
25       4.299841E+002    1.000000E+000    -4.299841E+002    0.000000E+000
26       4.304897E+002    1.000000E+000    4.304897E+002    0.000000E+000
27       4.506153E+002    1.000000E+000    4.506153E+002    0.000000E+000
28       4.518948E+002    1.000000E+000    4.518948E+002    0.000000E+000
29       5.375120E+002    1.000000E+000    -5.375120E+002    0.000000E+000
30       6.869576E+002    1.000000E+000    -6.869576E+002    0.000000E+000
31       7.066631E+002    1.000000E+000    -7.066631E+002    0.000000E+000
32       7.886870E+002    1.000000E+000    -7.886870E+002    0.000000E+000
33       8.093347E+002    1.000000E+000    -8.093347E+002    0.000000E+000
34       1.105691E+003    1.000000E+000    -1.105691E+003    0.000000E+000
35       1.677398E+003    1.000000E+000    -1.677398E+003    0.000000E+000
36       1.712032E+003    1.000000E+000    -1.712032E+003    0.000000E+000
37       1.984719E+003    1.000000E+000    -1.984719E+003    0.000000E+000
38       2.070623E+003    1.000000E+000    -2.070623E+003    0.000000E+000
39       2.763606E-005    9.992799E-001    2.761616E-005  +/-  1.048615E-006
40       2.763525E-005    9.992739E-001    -2.761518E-005  +/-  1.052937E-006
41       8.773779E-006    6.338228E-006    -5.561021E-011  +/-  8.773779E-006
42       4.555015E-002    9.993433E-001    4.552024E-002  +/-  1.650467E-003
43       6.564306E-002    9.982733E-001    -6.552971E-002  +/-  3.855870E-003
44       7.218801E-001    8.264333E-001    -5.965858E-001  +/-  4.064435E-001
45       1.069474E+000    4.942889E-001    5.286293E-001  +/-  9.296914E-001
46       1.732894E+002    9.999322E-001    1.732776E+002  +/-  2.017286E+000
47       7.316485E+002    9.999198E-001    -7.315898E+002  +/-  9.264535E+000
48       1.797114E+003    9.999839E-001    -1.797085E+003  +/-  1.019509E+001
49       2.342045E+003    9.999831E-001    -2.342005E+003  +/-  1.361697E+001
50       6.205366E+002    9.997020E-001    -6.203517E+002  +/-  1.514796E+001
51       1.228918E+002    9.865345E-001    -1.212370E+002  +/-  2.009932E+001
52       4.714768E+001    8.710732E-001    4.106908E+001  +/-  2.315674E+001
53       2.590247E+002    9.929176E-001    -2.571902E+002  +/-  3.077335E+001
54       5.554548E+001    7.993420E-001    4.439983E+001  +/-  3.337597E+001
55       7.777265E+001    7.754271E-001    -6.030702E+001  +/-  4.910853E+001
56       2.062513E+002    9.394598E-001    -1.937648E+002  +/-  7.067392E+001
57       2.156710E+002    8.620809E-001    -1.859258E+002  +/-  1.092957E+002
58       1.845852E+002    6.960833E-001    -1.284867E+002  +/-  1.325250E+002
59       2.089547E+002    7.701015E-001    -1.609163E+002  +/-  1.332967E+002
60       1.711074E+002    5.644072E-001    -9.657424E+001  +/-  1.412486E+002
61       3.394974E+002    9.007755E-001    -3.058110E+002  +/-  1.474386E+002
62       2.059021E+002    6.665641E-001    -1.372470E+002  +/-  1.534893E+002
63       3.816276E+002    8.915918E-001    -3.402560E+002  +/-  1.728162E+002
64       2.038477E+002    5.270937E-001    -1.074468E+002  +/-  1.732312E+002
65       3.660415E+002    8.574132E-001    -3.138488E+002  +/-  1.883754E+002
66       1.984408E+002    2.767701E-001    -5.492248E+001  +/-  1.906889E+002
67       3.756826E+002    8.598823E-001    -3.230428E+002  +/-  1.917831E+002
68       2.637619E+002    6.250145E-001    -1.648550E+002  +/-  2.058960E+002
69       2.745395E+002    6.533494E-001    -1.793702E+002  +/-  2.078419E+002
70       2.539442E+002    3.375001E-001    -8.570619E+001  +/-  2.390441E+002
71       2.583532E+002    3.408473E-001    -8.805899E+001  +/-  2.428826E+002
72       3.337835E+002    3.733153E-001    -1.246065E+002  +/-  3.096525E+002
73       4.336517E+002    2.946346E-001    -1.277688E+002  +/-  4.144019E+002

晴天 · 发表于 2006-12-15 16:02

我以后也得做振动方面的,不过现在是初学

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[ADAMS专区] vibration里的模态问题

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