关于采用力锤激励法进行模态分析时振型出现的问题
本帖最后由 wdhd 于 2016-8-3 09:44 编辑在做模态试验分析后得到频率和振型，经反复试验，频率非常稳定，振型也比较稳定，就是在振型最大振幅的节点上出现了振型不连续的情况，请高手帮忙分析出现此问题的原因。振型见附件所示：
节点号 上弦杆 下弦杆
1.0000000-0.01365900.0036441
2.0000000-0.0096410-0.0025951
3.0000000-0.0233210-0.0131680
4.0000000-0.0284600-0.0225510
5.0000000-0.0357120-0.0294710
6.0000000-0.0389020-0.0440680
7.0000000-0.0459830-0.0526220
8.0000000-0.0441260-0.0631530
9.0000000-0.0439820-0.0626130
10.0000000-0.0345930-0.0734300
11.0000000-0.0356700-0.0650480
12.0000000-0.0307410-0.0686220
13.0000000-0.0174380-0.0755200
14.0000000-0.0103780-0.0652590
15.00000000.0005173-0.0496070
16.00000000.0190310-0.0324170
17.00000000.0376410-0.0179630
18.00000000.06808900.0037290
19.00000000.10323000.0142420
20.00000000.15929000.0364520
21.00000000.22438000.0591490
22.00000000.31814000.1238800
23.00000000.42540000.1958300
24.00000000.54478000.3197000
25.00000000.72191000.4340000
26.00000000.82993000.5734300
27.00000000.99664000.6805100
28.00000001.04010000.7560800
29.00000001.15510000.8317200
30.00000001.21900000.8476900
31.00000001.32080000.9228400
32.00000001.31530000.9774600
33.00000001.30150000.9274800
34.00000001.28110000.9563600
35.00000001.31990000.9873500
36.00000001.21870000.8673000
37.00000001.15810000.7737300
38.00000001.05150000.7706200
39.00000001.00000000.6807800
40.00000000.87814000.5906100
41.00000000.76886000.4506500
42.00000000.58242000.3288200
43.00000000.46906000.1932400
44.00000000.36946000.1319900
45.00000000.28498000.0511710
46.00000000.18206000.0383940
47.00000000.13193000.0046854
48.00000000.0897820-0.0053714
49.00000000.0533850-0.0288360
50.00000000.0179370-0.0493400
51.00000000.0053404-0.0574030
52.0000000-0.0274680-0.0720290
53.0000000-0.0278210-0.0732830
54.0000000-0.0431530-0.0784560
55.0000000-0.0547250-0.0754960
56.0000000-0.0532550-0.0735440
57.0000000-0.0530140-0.0731030
58.0000000-0.0508440-0.0703340
59.0000000-0.0448980-0.0567920
60.0000000-0.0456390-0.0535300
61.0000000-0.0345590-0.0364980
62.0000000-0.0310440-0.0285260
63.0000000-0.0291200-0.0117510
64.0000000-0.0158860-0.0077535
65.0000000-0.0237520-0.0027627
图上传不了。辛苦大家用表格生成图片，谢谢！
回复 zeng-guoliang 的帖子
这些振型数据怎么得到的类...望楼主赐教，还有就是节点的不应该显示，x,y,z三项位移量吗？ 这些数据是在输出报告后提取出来的，在报告里面都是三向德，但是我只提取了横向的。
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