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Articles 1 - 5 of 5
Full-Text Articles in Aerospace Engineering
Stochastic Optimal Control In Nonlinear Systems, Celestin Nkundineza
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
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.
Orbital Evasive Target Tracking And Sensor Management, Huimin Chen, Genshe Chen, Dan Shen, Erik P. Blasch, Khanh Pham
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
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
Optical System For Open Orbiter, Nick Long, Dillon Hasselmenn, Rachael Roberts, Patrick Galegher, Noah Root, Josh Berk, Jeremy Straub
Jeremy Straub
No abstract provided.