calculation of the in-flight vibration mode shapes , natural frequencies

1. C-130 cargo aircraft
vibration mode shapes
in flight
10/28/2016
Don Blanchet
3B Associates
dwb3298@verizon.net
Grabcad Library model

2. Analysis method
 Solidworks Simulation
 Frequency Module
 Free-Free boundary conditions
 Eigenvectors

3. Mode shape 1

4. Mode shape 2

5. Mode shape 3

6. Mode shape 4

7. Mode shape 5

8. Mode shape 6

9. Mode shape 7

10. Mode shape 8

11. Mode shape 9

12. Mode shape 10

13. Mode shape 11