You will find here the results for linear triangle shell element with different mesh refinements:
8 x 8 elements
|
Mode |
Reference frequency [Hz] |
Linear triangle shell (8 x 8 elements) |
|
|
|
|||
|
Frequency [Hz] |
Error [%] |
||
|
1 |
2.377 |
2.441 |
2.698 |
|
2 |
5.942 |
6.337 |
6.653 |
|
3 |
5.942 |
6.361 |
7.048 |
|
4 |
9.507 |
10.559 |
11.064 |
|
5 |
11.884 |
13.540 |
13.930 |
|
6 |
11.884 |
13.621 |
14.615 |
|
7 |
15.449 |
18.092 |
17.109 |
|
8 |
15.449 |
18.262 |
18.206 |
16 x 16 elements
|
Mode |
Reference frequency [Hz] |
Linear triangle shell (16 x 16 elements) |
|
|
|
|||
|
Frequency [Hz] |
Error [%] |
||
|
1 |
2.377 |
2.393 |
0.653 |
|
2 |
5.942 |
6.037 |
1.605 |
|
3 |
5.942 |
6.047 |
1.771 |
|
4 |
9.507 |
9.760 |
2.661 |
|
5 |
11.884 |
12.291 |
3.423 |
|
6 |
11.884 |
12.292 |
3.436 |
|
7 |
15.449 |
16.077 |
4.062 |
|
8 |
15.449 |
16.168 |
4.654 |
32 x 32 elements
|
Mode |
Reference frequency [Hz] |
Linear triangle shell (32 x 32 elements) |
|
|
|
|||
|
Frequency [Hz] |
Error [%] |
||
|
1 |
2.377 |
2.381 |
0.148 |
|
2 |
5.942 |
5.966 |
0.396 |
|
3 |
5.942 |
5.966 |
0.401 |
|
4 |
9.507 |
9.568 |
0.638 |
|
5 |
11.884 |
11.980 |
0.806 |
|
6 |
11.884 |
11.980 |
0.809 |
|
7 |
15.449 |
15.609 |
1.034 |
|
8 |
15.449 |
15.609 |
1.040 |
128 x 128 elements
|
Mode |
Reference frequency [Hz] |
Linear triangle shell (128 x 128 elements) |
|
|
|
|||
|
Frequency [Hz] |
Error [%] |
||
|
1 |
2.377 |
2.377 |
0.009 |
|
2 |
5.942 |
5.942 |
0.004 |
|
3 |
5.942 |
5.942 |
0.004 |
|
4 |
9.507 |
9.508 |
0.010 |
|
5 |
11.884 |
11.885 |
0.012 |
|
6 |
11.884 |
11.886 |
0.013 |
|
7 |
15.449 |
15.452 |
0.016 |
|
8 |
15.449 |
15.452 |
0.017 |
Reference:
BENCHMARK newsletter, Report No. E1261/R002, February 1989, p.21, NAFEMS - Glasgow
