National Aeronautics and Space Administration (NASA) Glenn Research Center Space Acceleration Measurement System (SAMS) Support for 3D Printing in Zero-G Experiment 1 Kevin McPherson Payload Operation Integration Working Group (POIWG) #36 July, 2014

National Aeronautics and Space Administration (NASA) Glenn Research Center 1.MSG Diagram and Photos of SAMS 2.SAMS Web-Based Resources 3.How To Request SAMS Support 4.Quick Look at MSG Vibratory Environment 5.Questions 2 Outline

National Aeronautics and Space Administration (NASA) Glenn Research Center 1.MSG Diagram and Photos of SAMS 2.SAMS Web-Based Resources 3.How To Request SAMS Support 4.Quick Look at MSG Vibratory Environment 5.Questions 3 Outline

National Aeronautics and Space Administration (NASA) Glenn Research Center 4 MSG Diagram and Photos of SAMS

National Aeronautics and Space Administration (NASA) Glenn Research Center 5 MSG Diagram and Photos of SAMS Screenshot of SAMS Installation Procedure* The SAMS TSH sensor can be mounted in various places in the MSG work volume. *Thanks to Charlie Scott, MSG Ops team. This image shows sensor mounted on the ceiling, toward the back, right side.

National Aeronautics and Space Administration (NASA) Glenn Research Center 6 MSG Diagram and Photos of SAMS Power connection: either Experiment Outlet 1 (shown in the photo) or Experiment Outlet 2 (in the upper-right side of the work volume’s rear wall). Ethernet connection is always in the lower-left side, as shown in the photo. Power & Ethernet Connections

National Aeronautics and Space Administration (NASA) Glenn Research Center 7 MSG Diagram and Photos of SAMS SAMS TSH Mounted in WV on Cold Plate

National Aeronautics and Space Administration (NASA) Glenn Research Center 8 MSG Diagram and Photos of SAMS SAMS TSH-ES08 Mounted in Support of SODI

National Aeronautics and Space Administration (NASA) Glenn Research Center 9 MSG Diagram and Photos of SAMS SAMS TSH-ES08 Mounted in Support of SODI Zoom-In

National Aeronautics and Space Administration (NASA) Glenn Research Center 1.MSG Diagram and Photos of SAMS 2.SAMS Web-Based Resources 3.How To Request SAMS Support 4.Quick Look at MSG Vibratory Environment 5.Questions 10 Outline

National Aeronautics and Space Administration (NASA) Glenn Research Center 11 SAMS Web-Based Resources REAL-TIME:  Displays nominally show most recent ~2-hours. BUFFER:  Links to most recent 2-days of real-time screenshots.  Updated every half hour. ARCHIVE (updated daily for last ~13 years):  Access PIMS roadmap PDFs for easy visualization of available acceleration data by sensor in calendar view format.  Download the acceleration measurement data via FTP.

National Aeronautics and Space Administration (NASA) Glenn Research Center 12 SAMS Web-Based Resources REAL-TIME:  Displays nominally show most recent ~2-hours. BUFFER:  Links to most recent 2-days of real-time screenshots.  Updated every half hour. ARCHIVE (updated daily for last ~13 years):  Access PIMS roadmap PDFs for easy visualization of available acceleration data by sensor in calendar view format.  Download the acceleration measurement data via FTP.

National Aeronautics and Space Administration (NASA) Glenn Research Center 13 SAMS Web-Based Resources REAL-TIME:  Displays nominally show most recent ~2-hours. BUFFER:  Links to most recent 2-days of real-time screenshots.  Updated every half hour. ARCHIVE (updated daily for last ~13 years):  Access PIMS roadmap PDFs for easy visualization of available acceleration data by sensor in calendar view format.  Download the acceleration measurement data via FTP.

National Aeronautics and Space Administration (NASA) Glenn Research Center 1.MSG Diagram and Photos of SAMS 2.SAMS Web-Based Resources 3.How To Request SAMS Support 4.Quick Look at MSG Vibratory Environment 5.Questions 14 Outline

National Aeronautics and Space Administration (NASA) Glenn Research Center How To Request SAMS Support Send to: At least a week lead time for draft/review of crew procedure*, then… At least a week lead time for POIC’s review process, then… A couple weeks to get crew time scheduled. * this assumes location and mounting location and steps for TSH is already established, also, another example procedure to see in the International Procedure Viewer (IPV) is: US PODF > FCF LMM INSTALL TSH 15

National Aeronautics and Space Administration (NASA) Glenn Research Center 1.Spatial Where is your location of interest? ( SSA coordinates ) Vibratory disturbances tend to be localized. ( less low freq. ) 2.Temporal (SAMS SEs nom. operate 24x7, but not TSHs) When do you expect to operate? Relative quiet below ~6 Hz during crew sleep. Some investigators leverage crew sleep for sensitive periods. Perhaps you take special precautions during a reboost. 3.Spectral Any resonant frequencies? ( phenomena studied, meas. equipment ) Fruit fly investigation has sensitivity between ~ Hz. Marangoni liquid bridge experiment sensitive ~0.25 Hz. 16 How To Request SAMS Support Some Important Aspects to Consider

National Aeronautics and Space Administration (NASA) Glenn Research Center 1.Spatial Where is your location of interest? ( SSA coordinates ) Vibratory disturbances tend to be localized. ( less low freq. ) 2.Temporal (SAMS SEs nom. operate 24x7, but not TSHs) When do you expect to operate? Relative quiet below ~6 Hz during crew sleep. Some investigators leverage crew sleep for sensitive periods. Perhaps you take special precautions during a reboost. 3.Spectral Any resonant frequencies? ( phenomena studied, meas. equipment ) Fruit fly investigation has sensitivity between ~ Hz. Marangoni liquid bridge experiment sensitive ~0.25 Hz. 17 How To Request SAMS Support Some Important Aspects to Consider

National Aeronautics and Space Administration (NASA) Glenn Research Center 1.Spatial Where is your location of interest? ( SSA coordinates ) Vibratory disturbances tend to be localized. ( less low freq. ) 2.Temporal (SAMS SEs nom. operate 24x7, but not TSHs) When do you expect to operate? Relative quiet below ~6 Hz during crew sleep. Some investigators leverage crew sleep for sensitive periods. Perhaps you take special precautions during a reboost. 3.Spectral Any resonant frequencies? ( phenomena studied, meas. equipment ) Fruit fly investigation has sensitivity between ~ Hz. Marangoni liquid bridge experiment sensitive ~0.25 Hz. 18 How To Request SAMS Support Some Important Aspects to Consider

National Aeronautics and Space Administration (NASA) Glenn Research Center 1.MSG Diagram and Photos of SAMS 2.SAMS Web-Based Resources 3.How To Request SAMS Support 4.Quick Look at MSG Vibratory Environment 5.Questions 19 Outline

National Aeronautics and Space Administration (NASA) Glenn Research Center Quick Look at MSG Vibratory Environment 20 FREQUENCY TIME PSD MAGNITUDE

National Aeronautics and Space Administration (NASA) Glenn Research Center Quick Look at MSG Vibratory Environment 21 OPEN 73 Hz 3 Fans w/ Work Vol.

National Aeronautics and Space Administration (NASA) Glenn Research Center Quick Look at MSG Vibratory Environment 22 CLOSED 46.5 Hz 3 Fans w/ Work Vol.

National Aeronautics and Space Administration (NASA) Glenn Research Center 23 Quick Look at MSG Vibratory Environment ROOT MEAN SQUARE FREQUENCY LARGE STEPS AT STRONG SPECTRAL PEAKS

National Aeronautics and Space Administration (NASA) Glenn Research Center 24 Quick Look at MSG Vibratory Environment OPEN CLOSED ~900 ugRMS ~200 ugRMS 73 Hz46.5 Hz

National Aeronautics and Space Administration (NASA) Glenn Research Center 1.MSG Diagram and Photos of SAMS 2.SAMS Web-Based Resources 3.How To Request SAMS Support 4.Quick Look at MSG Vibratory Environment 5.Questions 25 Outline

National Aeronautics and Space Administration (NASA) Glenn Research Center Questions 1.Will You Track “Print Head” Position vs. GMT? For correlation of measured vibration with print perturbation. SAMS data are synced with ISS time server via NTP. On start-up of your SAMS TSH in MSG, verify its timestamps. 2.When Do You Expect to Operate? Can you take advantage of quiet below ~6 Hz during sleep? Perhaps you take special precautions during reboosts. 3.What Frequency Range(s) Are of Concern? Any resonant frequencies? ( e.g. cantilevered “print head” ) Fruit fly investigation has sensitivity between ~ Hz. Marangoni liquid bridge experiment sensitive ~0.25 Hz. 4.Would Any Tailored Real-Time Displays Help? JAXA Marangoni liquid bridge investigators made use of custom 5 Hz low-pass filtered, 10-second interval RMS plot. 26

National Aeronautics and Space Administration (NASA) Glenn Research Center 27 BACKUP SLIDES

National Aeronautics and Space Administration (NASA) Glenn Research Center SAMS Data Flow Diagram 28