vibration里的模态问题
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 我以后也得做振动方面的,不过现在是初学
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