1. Rocket Transducer Group 1/3 Patrick Morgan Lance Yoneshige May 6, 2004
Instructor: Bruce Liebert
University of Hawaii at Manoa
ME 401

2. Design
Assembly:

3. Design (Continued)
Base:

4. Design (Continued)
Beam:

5. Design (Continued)

6. Design (Continued)

7. Test Launch

8. Software Correction Attenuation Cut-off Frequency
Use of “Fired” & “Unfired” data
Cut-off Frequency
Input & Output Cut-off Frequency determined to be 22 Hz for 99%; 9 Hz for 95%.

9. Results Harmonic Characteristics Fired Rocket Unfired Rocket
f_n = 56 Hz
z = 0.02
Unfired Rocket
f_n = 45 Hz

10. Results (Continued)

11. Results (Continued)

12. Results (Continued) Error with 95% of signal: M(w_n) = 3.3%
W = 9 Hz, z = 0.02

13. Questions? ? ?