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Vibration study report

Vibration study report. LCLS-II Physics meeting A. Lutman , J. Turner. 4/10/2013. Talk Overiew. Analysis description Results. Scheme I - Simulation. Two separated Gaussians fit well each feature. Two Gaussians: fit poorly Asymmetric Gaussian: nice but lengthy. Fit 1 average

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Vibration study report

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  1. Vibration study report • LCLS-II Physics meeting • A. Lutman, J. Turner 4/10/2013

  2. Talk Overiew • Analysis description • Results

  3. Scheme I - Simulation Two separated Gaussians fit well each feature Two Gaussians: fit poorly Asymmetric Gaussian: nice but lengthy Fit 1 average Fit 2 average First moment Image at MEC Area Fit average First moment

  4. Reference run 35 (no works during this run) Left feature position X Time ~(27k shots) Frequency ~(27k shots) Frequencies higher than “baseline” Low: 0-2 Hz 13.3 Hz 16.5 Hz 19.5-20.2 Hz 25.17 Hz 29.5 Hz 31.4 Hz 47.2 Hz 47.8 Hz 49.4 Hz 57.5 Hz 58.8 Hz 59.1 Hz 59.3 Hz “Slice” standard deviation “full set” standard deviation Samples with no image, and missing timestamps have been filled with the average of the adjacent samples.

  5. Sample runs (run 37) Run 41 (during Jackhammer) Run 37, another reference after moving mirrors For the analysis only the longest consecutive interval without big disturbances has been considered, for each dataset.

  6. Jackhammer (4-7)

  7. Jackhammer (4-7)

  8. Jackhammer (4-7) Left spot Right spot X position Y position

  9. Backhoe (8-13)

  10. Backhoe (8-12) Right spot Y position

  11. Backhoe (8-13) Left spot Right spot X position Y position

  12. Concrete Vibrator (14-18)

  13. Concrete Vibrator (14-18)

  14. Concrete Vibrator (14-18) Left spot Right spot X position Y position

  15. Concrete Vibrator (14-18) Y-Low frequencies Y centroid 0 to 6 Hz range

  16. Plate Compactor (19-22)

  17. Plate Compactor (19-22)

  18. Plate Compactor (19-22)

  19. Core Drilling (23-26)

  20. Core Drilling (23-26)

  21. Backhoe (27-30)

  22. Backhoe (27-30)

  23. Jackhammer (31-34)

  24. Jackhammer (31-34)

  25. Jackhammer (38-41) – New reference 37

  26. Jackhammer (38-41) – New reference 37

  27. Backhoe (43,45) – New reference 37

  28. Backhoe (43,45) – New reference 37

  29. Plate Compactor (47-49) – New reference 37

  30. Plate Compactor (47-49) – New reference 37

  31. Concrete Vibrator(50,52-54) – New reference 37

  32. Concrete Vibrator(50,52-54) – New reference 37

  33. Jackhammer (54-57,59)– New reference 37

  34. Jackhammer (54-57,59)– New reference 37 12 Hz

  35. Core Drilling (60-63) – New reference 37

  36. Core Drilling (60-63) – New reference 37

  37. Backhoe (64-67) – New reference 37

  38. Backhoe (64-67) – New reference 37 29.7-30.3 Hz

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