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Aerospace Engineering Commons

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Articles 1 - 12 of 12

Full-Text Articles in Aerospace Engineering

Stochastic Optimal Control In Nonlinear Systems, Celestin Nkundineza Nov 2012

Stochastic Optimal Control In Nonlinear Systems, Celestin Nkundineza

Celestin Nkundineza

Stochastic control is an important area of research in engineering systems that undergo disturbances. Controlling individual states in such systems is critical. The present investigation is concerned with the application of the stochastic optimal control strategy developed by To (2010) and its implementation as well as providing computed results of linear and nonlinear systems under stationary and nonstationary random excitations. In the strategy the feedback matrix is designed based on the achievement of the objectives for individual states in the system through the application of the Lyapunov equation for the system. Each diagonal element in the gain or associated gain …


End-Winding Leakage Of Aerospace Homopolar Alternators, Mulukutla S. Sarma Feb 2012

End-Winding Leakage Of Aerospace Homopolar Alternators, Mulukutla S. Sarma

Sarma Mulukutla

An accurate knowledge of the magnetic field distribution is of great importance in finding the best designs for electrical machinery. It is the purpose of this paper to present a new numerical method for the determination of three-dimensional flux distribution in the end zone of a high-speed aerospace homopolar alternator, and for the calculation of end leakage reactance. The new analysis is applied to an experimental 95 kVA, 115/200 V, 3400 Hz, 40,800 r/min, three-phase, wye-connected, homopolar alternator.


Power Supply Electrical Design, Robert Mayers, Matt Olson, Zach Bryant, Ali Haider, Stephen Holmes, Paul Johnson, Noah Root, Josh Berk, Jeremy Straub Jan 2012

Power Supply Electrical Design, Robert Mayers, Matt Olson, Zach Bryant, Ali Haider, Stephen Holmes, Paul Johnson, Noah Root, Josh Berk, Jeremy Straub

Jeremy Straub

No abstract provided.


Ground Support Station Team, Cassandra Johnson, Iva Gerasimenko, Aaron Podoll, Josh Berk, Jeremy Straub Jan 2012

Ground Support Station Team, Cassandra Johnson, Iva Gerasimenko, Aaron Podoll, Josh Berk, Jeremy Straub

Jeremy Straub

No abstract provided.


Sensor And Bus Electrical Design, Tyler Przybylski, Prabhu Victor, Chris Mcdonald, Yineng Li, Noah Root, Josh Berk, Jeremy Straub Jan 2012

Sensor And Bus Electrical Design, Tyler Przybylski, Prabhu Victor, Chris Mcdonald, Yineng Li, Noah Root, Josh Berk, Jeremy Straub

Jeremy Straub

No abstract provided.


Ground Station Software Model, David Apostal, Atif Mohammad, Jeremy Straub, Josh Berk Jan 2012

Ground Station Software Model, David Apostal, Atif Mohammad, Jeremy Straub, Josh Berk

Jeremy Straub

No abstract provided.


Payload Software, Christoffer Korvald, Jeremy Straub, Atif Mohammad, Josh Berk Jan 2012

Payload Software, Christoffer Korvald, Jeremy Straub, Atif Mohammad, Josh Berk

Jeremy Straub

No abstract provided.


Adaptive Kriging Controller Design For Hypersonic Flight Vehicle Via Back-Stepping, Bin Xu Jan 2012

Adaptive Kriging Controller Design For Hypersonic Flight Vehicle Via Back-Stepping, Bin Xu

Bin Xu

No abstract provided.


Direct Neural Discrete Control Of Hypersonic Flight Vehicle, Bin Xu Jan 2012

Direct Neural Discrete Control Of Hypersonic Flight Vehicle, Bin Xu

Bin Xu

No abstract provided.


Orbital Evasive Target Tracking And Sensor Management, Huimin Chen, Genshe Chen, Dan Shen, Erik P. Blasch, Khanh Pham Dec 2011

Orbital Evasive Target Tracking And Sensor Management, Huimin Chen, Genshe Chen, Dan Shen, Erik P. Blasch, Khanh Pham

Huimin Chen

In this chapter, we consider the sensor management problem for tracking space targets where the targets may apply evasive maneuvering strategy to avoid being tracked by the space borne observers. We first study the case of single target tracking by a single observer and formulate the pursuit–evasion game with complete information. Then we extend the tracking problem to a set of collaborative observers and each observer has to decide when to sense which target in order to achieve the desired estimation error covariance. A popularly used criterion for sensor management is to maximize the total information gain in the observer-to-target …


Open Orbiter Cubesat Communication Protocol, Zahirul Islam, Ernest Workman, Nick Schmitz, Noah Root, Josh Berk, Jeremy Straub Dec 2011

Open Orbiter Cubesat Communication Protocol, Zahirul Islam, Ernest Workman, Nick Schmitz, Noah Root, Josh Berk, Jeremy Straub

Jeremy Straub

No abstract provided.


Optical System For Open Orbiter, Nick Long, Dillon Hasselmenn, Rachael Roberts, Patrick Galegher, Noah Root, Josh Berk, Jeremy Straub Dec 2011

Optical System For Open Orbiter, Nick Long, Dillon Hasselmenn, Rachael Roberts, Patrick Galegher, Noah Root, Josh Berk, Jeremy Straub

Jeremy Straub

No abstract provided.