Space Grant Consortium - University of Wisconsin - Green Bay

• Fabrication of stereolithography models for use in subsequent mechanical fit checks;
• Development of NuSTAR kinematics model and PMD acceleration data modeling;
and
• Research into electromagnetic interference mitigation techniques and adhesives
usage.
Project Approach
A unique aspect of the Phaeton Mast Dynamics project, perhaps more so than other flight
projects, is the significant amount of knowledge that must come from outside the project team in
order to reach project milestones. The small size of the project and the accelerated timeline
dictate this aspect. Therefore, the primary method of accomplishing any major task was as
follows:
• Define successful outcome of task and any relevant constraints;
• Discuss task with JPL subject matter expert to refine constraints and gain insight into
process;
• Implement recommendations of expert and refine implementation with mentor;
followed by
• Task completion.
In addition, tools (software, hardware, or otherwise) occasionally had to be acquired in order to
complete the task. This would typically run concurrently with the task definition.
Because of the wide variety of work undertaken this summer, the general approach outlined
above cannot be refined further without introducing an example. Also note that in many cases
my mentor or other project staff knew the relevant information, thus eliminating the need for an
external engineer or technician.
Project Results
Integration and Test
Vibration
Preparation for the dynamics testing proceeded
smoothly. A test fixture to interface the PMD hardware
with the Environmental Test Laboratory dynamics
equipment was successfully designed and fabricated. In
addition, work on the vibration test AIDS document was
started. No work was started on the vibration test plan,
as this document will be produced by the
NuSTAR/PMD dynamist. No testing was performed as
this test is scheduled for November or December of
2009.
Thermal-Vacuum
Thermal-vacuum test preparation yielded fewer results. A draft of the thermal test procedure was
produced. In addition, test thermocouple placement was decided and, in collaboration with the
PMD team, removable thermocouples were decided upon. No analysis was performed due to
project schedule and pending decisions regarding the test temperature profile, though some
46