Organization:
Space Systems Academic Group (SSAG)

Series

Ferroelectricity Newsletter, 2002-2005

Description

Our purpose is to prepare our students to lead in transformation and manage change in tomorrow’s complex and technically challenging world. We fulfill that purpose by empowering student minds with advanced knowledge culled from cutting-edge, defense related research; by blending classroom experiences into a hands-on pedagogy that links theory and reality; and by teaching and inculcating creative, innovative thinking that prepares our students to continue to learn, grow, adapt and lead in future, unknown environments. Our graduates are more than just well educated engineers and scientists; they are innovative leaders of transformation and creative solvers of tomorrow’s problems.

Website of the organization

https://nps.edu/web/ssag

Full item page

Publication Search Results

Now showing 1 - 10 of 130

CubeSat Launchers, ESPA-rings, and Education at the Naval Postgraduate School
(2007-08) Newman, James; Sakoda, Daniel; Panholzer, Rudolf; Space Systems Academic Group (SSAG); Graduate School of Engineering and Applied Science (GSEAS)
An effort is underway at the Naval Postgraduate School (NPS) to leverage its unique position as both a military research institution and a graduate university interested in educational outreach. We are working to simultaneously incorporate the use of CubeSats into our educational and space research program and to enable the access of other student-built CubeSats to DoD launches. To launch CubeSats, NPS is designing a CubeSat launcher compatible with the ESPA (EELV Secondary Payload Adaptor) interface. Through partnerships with universities and other DoD collaborators, NPS is seeking to maximize the potential for launching CubeSat payloads.
PANSAT Model
(Monterey, California. Naval Postgraduate School, 2000) Sakoda, Dan; Space Systems Academic Group (SSAG); Graduate School of Engineering and Applied Science (GSEAS); Space Systems Academic Group
A Design Template for GAS Satellite Payloads
(1988-09) Sakoda, Daniel; Space Systems Academic Group (SSAG); Graduate School of Engineering and Applied Science (GSEAS)
The Naval Postgraduate School has designed a small, low cost, general purpose satellite bus, ORION. An investigation of the structural requirements has been done for ORION as an extended Get Away Special (GAS) canister payload. The structure must be able to withstand the design limit load of 6.0 g's acceleration in ± X and ± Y, and a limit load of 10.0 g's in the ± Z. The structure must also have modal vibration greater than 35 Hz. A finite element analysis in linear bending considers an aluminum stiffened cylinder with two equipment plates and a top plate. Considerable weight reduction from the original design results. The structure configured for ORION may be helpful to other GAS payload users as a design template for similar satellites.
Development of the Naval Postgraduate School Solid State Data Recorder Project
(1989-09) O'Donnell, James; Phelps, Ronald; Space Systems Academic Group (SSAG); Graduate School of Engineering and Applied Science (GSEAS)
Tile Naval Postgraduate School Solid State Data Recorder for space applications has been an ongoing project for the Space Systems Academic Group. Tile current status of the project is discussed, including developments in the software, redesign of the enclosure and test plans to flight certify the device. The proposed mission to test tile experiment as a Get Away Special payload aboard the Space Shuttle is also discussed.
Ferroelectricity Newsletter / v.13:no.3/4 Summer/Fall 2005
(Monterey, California, Naval Postgraduate School, 2005) Space Systems Academic Group (SSAG); Graduate School of Engineering and Applied Science (GSEAS); Space Systems Academic Group
The Ferroelectricity Newsletter intends to meet expectations by providing information about upcoming meetings worldwide, highlights of recently held conferences, lists of papers to be published in proceedings, reports on research, patents, and other important developments, as well as a calendar of events in each issue, and a yearly index.
On-Orbit Annealing of Satellite Solar Panels
(1988-09) Sherif Michael; Sommers, R.S.; Space Systems Academic Group (SSAG); Graduate School of Engineering and Applied Science (GSEAS)
An approach to extend the life of orbiting satellites is presented. Since output power of spacecraft solar panels plays a major role in determining the end of life of the satellite, any attempt to recover any of this lost power would be very attractive. The goal of this research was to investigate the possibility of annealing radiation damaged solar panels under conditions that would be feasible to apply in orbiting spacecraft. Preliminary data of a technique called forward biased current annealing of GaAs cells is presented and shows promising results at a moderate temperature. An autonomous microprocessor controlled experiment to carry out these tasks is also presented. The experiment is currently capable of monitoring and accurately recording different cell performance including their IV characteristics. With simple modifications to this circuit the system can be designed to perform current annealing of different array cells.
Transit Sat
(Monterey, California: Naval Postgraduate School, 2018-01-24) Space Systems Academic Group (SSAG); Graduate School of Engineering and Applied Science (GSEAS); Space Systems Academic Group (SSAG)
The Transit satellite system, sponsored by the Navy and developed jointly by DARPA and the Johns Hopkins Applied Physics Laboratory, under the leadership of Dr. Richard Kirschner at Johns Hopkins, was the ﬁrst satellite-based geopositioning system. Just days after the Soviet launch of Sputnik 1, the ﬁrst man-made earth-orbiting satellite on October 4, 1957, two physicists at APL, William Guier and George Weiffenbach, found themselves in discussion about the radio signals that would likely be emanating from the satellite. They were able to determine Sputnik's orbit by analyzing the Doppler shift of its radio signals during a single pass. Discussing the way forward for their research, their director Frank McClure, the chairman of APL's Research Center, suggested in March 1958 that if the satellite's position were known and predictable, the Doppler shift could be used to locate a receiver on Earth, and proposed a satellite system to implement this principle.
Ferroelectricity Newsletter / v.10:no.4 Fall 2002
(Monterey, California, Naval Postgraduate School, 2002) Space Systems Academic Group (SSAG); Graduate School of Engineering and Applied Science (GSEAS); Space Systems Academic Group
The Ferroelectricity Newsletter intends to meet expectations by providing information about upcoming meetings worldwide, highlights of recently held conferences, lists of papers to be published in proceedings, reports on research, patents, and other important developments, as well as a calendar of events in each issue, and a yearly index.
Space Systems Academic Group Brochure / 2009
(Monterey, California; Naval Postgraduate School, 2009-11-10) Panholzer, Rudolf; Space Systems Academic Group (SSAG); Graduate School of Engineering and Applied Science (GSEAS); Engineering and Applied Sciences
The Space Systems Academic Group (SSAG) along with eight academic departments is an integral part of the Graduate School of Engineering and Applied Sciences. As an interdisciplinary association of professors it provides direction and guidance for two in-residence curricula: Space Systems Engineering and Space Systems Operations and for the Space Systems Distance Learning program.
Structural design of a NPS CubeSat launcher
(Monterey, California. Naval Postgraduate School, 2008) Roßberg, Felix; Space Systems Academic Group (SSAG)
To encourage student interest in space and education Stanford University and CalPoly developed the CubeSat. These picosatellites weigh about one kg and can be developed and built by students. NPS is designing CubeSats and a structure to deploy them in orbit as part of its emphasis on hands-on education This technical report deals with the development of a CubeSat Launcher (NPSCuL). NPSCuL will carry up to ten P-PODs built and flight qualified by CalPoly. It will be launched into orbit and deploy multiple CubeSats. Several designs have been developed including finite element models each with a variable number of elements and shell wall thicknesses and tested to loads of 15 g. The simulation results show that the aluminum structures need to have a minimum shell thickness of 15 mm to handle the maximum expected stress. Different bolt patterns for the connection between the structure and the base plate were analyzed. A circular bolt pattern is preferred because the stress is distributed more evenly over the bolts but the shell thickness was modified based on the results from the frequency analysis.