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NASA NTRS2011

Phaeton Mast Dynamics: On-Orbit Characterization of Deployable Masts

This presentation discusses the Phaeton Mast Dynamics (PMD) instrument architecture and design, including design constraints, design solutions, and instrument results. Since the design and build phases were completed with PMD as a NuSTAR payload, the presentation discusses NuSTAR's constraints and initial accommodations. The instrument results presented here are independent of the host mission, but the effects of a host mission's data handling design on PMD capabilities is discussed in 2011 IEEEAC Paper 1305.

Nuclear Spectroscopic Telescope Array (NuSTAR)↗
NASA NTRS2011

Phaeton Mast Dynamics: On-Orbit Characterization of Deployable Masts

The PMD instrument is a set of three custom-designed triaxial accelerometer systems designed specifically to detect and characterize the modal dynamics of deployable masts in orbit. The instrument was designed and built as a payload for the NuSTAR spacecraft, but it is now sponsored by the Air Force Research Laboratory's DSX project. It can detect acceleration levels from 1 micro gram to 0.12g over a frequency range of 0.1Hz to 30Hz, the results of which can support future modeling and designing of deployable mast structures for space. This paper details the hardware architecture and design, calibration test and results, and current status of the PMD instrument.

Phaeton Mast Dynamics (PMD)↗