1. Taeyeon Kim

2. Page  2 1.Vibration test plan for KHU 2.Harnessing 3.STEIN Housing 4.Future work

3. Page  3 In UC Berkeley (Now~ 12 th Aug.) Harnessing, Modify STEIN Housing In UC Berkeley (18 th July~ Now) Modified 2D drawing, STEIN fit check, Harnessing IN Kyung Hee University ( ~16 th July) Prepared the vibration test, a fixture design

4. At Kyung Hee University

5. Page  5 Modal Analysis Static Analysis by using MAC Responds Analysis Vibration Test Prove CINEMA is stable on a launcher Get the natural frequency of CINEMA Decided the point of an accelerometer on CINEMA Random vibration test NOW 1 st mode: 320 Hz Stress margin: 10% Decided Accelerometer points

6. Page  6 Get a result of RMS value of Acceleration at the worst case Unit level is refer to GSFC-STD-7000

7. Page  7 Qualification Model will be take the Random vibration test at SATREC ( Middle of October) We can help a vibration test if vibration test of the UHF antenna is delayed after middle of September. Primary Secondary

8. Page  8 UPBottom

9. At UC Berkeley

10. Page  10 Assembled the digital board and STEIN parts (except Attenuator) Fit check connecting wire and STEIN housing However, connector on the digital circuit is broken. Disassemble the STEIN assembly to repair the digital board

11. Page  11 -Change the 3D modeling of STEIN Electronics Housing. 0.05 in Extended the wall of STEIN housing to consider the flex circuit. Make a 2D drawing

12. Page  12 Work with I made the MAGIC Harnessing wire. Wire is twisted at 100 times.

13. Page  13 Harnessing in UC Berkeley STEIN fit check (if it is possible) Performed random vibration test in South Korea Assemble the CINEMA with KHU mechanical team

14. Kyung Hee University / School of Space Research