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Browse Dept. of Aerospace Engineering by Title
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(20110825)This thesis presents several new openloop guidance methods for spacecraft swarms comprised of hundreds to thousands of agents with each spacecraft having modest capabilities. These methods have three main goals: preventing ...
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(1998)To validate the control algorithms experimentally, a complete controller for swingup and balancing has been designed and implemented on the Pendubot, a twolink underactuated robot. The parameters of the Pendubot were ...
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(201212)This thesis makes three theoretical contributions to the robust system analysis and control theory. First, we revisit a central theorem in robust control theory known as the the KalmanYakubovichPopov (KYP) lemma, and ...
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(1994)A new method is presented for the synthesis of dynamic Green's functions of complex distributed parameter systems from previously known Green's functions of their elemental substructures. The method allows for the incorporation ...
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(20180425)This work studies methods to detect target in an orbit around the Earth using a space based sensor. Searching for a target among a large set of candidate orbits is a difficult and time consuming problem. Considering orbital ...
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(2007)Many interesting problems in spacecraft mission design are hybrid optimal control problems (HOCP) however there are only a small number of successful solutions of such problems in the literature because the problems are ...
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(20200424)A set of three experiments were performed at the University of Illinois at UrbanaChampaign to characterize the aeropropulsive coupling effects which are present for aircraft equipped with distributed electric propulsion ...
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(20161214)The primary goals of this research were to quantify the effects of turbulence on the measurements of fivehole pressure probes (5HP) and to develop a model capable of predicting the response of a 5HP to turbulence. The ...
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(20170202)The current work characterizes, via detailed experiments, the flowfield and surface states of the relatively littleexplored problem of an underexpanded axisymmetric jet flowing across an adjacent parallel surface, in both ...
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(1980)A model describing reactive twophase flow through a gassolid mixture is presented based upon either the concept of continuum mixture or the concept of separatedflow continuum. The resulting governing equations are solved ...
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(1995)An efficient and accurate anisotropic closedsection beam theory has been developed for both thin and thickwalled composite beams. In this theory transverse shear effects, both of the crosssection and of the beam walls, ...
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(20151026)Fiber reinforced polymer matrix composites (PMC) possess outstanding structural properties, including high strength and stiffness, low weight, long fatigue life, and excellent manufacturability of complex geometries. ...
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(2005)Microgravity conditions pose unique challenges for fluid handling and heat transfer applications. By controlling (curtailing or augmenting) the buoyant and thermocapillary convection, the latter being the dominant convective ...
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(20120918)In this work, the plastic behavior of Hastelloy X subjected to thermomechanical loading is investigated, and the phenomenon of dynamic strain aging is studied under isothermal and temperature jump experiments, using the ...
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(2008)In the final part of this dissertation, the coupled thermomechanical and propellant surface regression solver is further enhanced through addition of fluidphase equations for transport of chemical species and temperature. ...
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(20151012)High capacity lithium ion (Li+) host materials, such as silicon (Si) and tin (Sn), serve as potential replacements to graphite in composite battery electrodes because of their higher gravimetric capacity when reacted with ...
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(2008)Factors, other than the Damkohler number, that are found to significantly affect the stability of the spinning porous plug burner included the mixture strength and the exit velocity at the burner surface. The range of ...
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(20130822)This thesis addresses the problem of steering a fleet of unmanned aerial vehicles (UAVs) along desired 3D spatial paths while meeting stringent relative temporal constraints. A representative example is the challenging ...
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Now showing items 467486 of 506