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Browse Dept. of Aerospace Engineering by Title
Now showing items 202-221 of 506
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(1995)Experiments were conducted in a two-dimensional wind tunnel to study dynamics of large-scale structures in a planar compressible mixing layer. High-speed cinematic (300,000 frames/sec) Mie-scattering and shadowgraph ...
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(1995)The local and global bifurcation behavior of various structural and mechanical systems have been examined in detail. The analysis is divided into three main parts. In the first part, global bifurcation analysis is performed ...
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(2017-04-27)Recently, there has been an increase in outdoor applications for small-scale Unmanned Aerial Vehicles (UAVs), such as 3D modelling, filming, surveillance, and search and rescue. To perform these tasks safely and reliably, ...
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(2002)To demonstrate the capabilities and versatility of the grain-based CVFE code, we investigate four dynamic fracture problems. The first one is concerned with the propagation of dynamic intergranular cracks under mode I ...
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(2017-09-08)In recent years, there has been rising interest in commercial applications of Unmanned Air Vehicles (UAVs). Examples of their usage include aerial photography, infrastructure inspection and emergency first response. For ...
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(2015-04-20)There has been considerable interest in formation flying spacecraft due to their potential to perform certain tasks at a cheaper cost than monolithic spacecraft. Formation flying enables the use of smaller, cheaper spacecraft ...
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(2018-12-14)This study aims to address the problem of attitude control of spacecraft in presence of thrust uncertainty, which leads to stochastic accelerations. Spacecraft equipped with electric propulsion and other low thrust mechanisms, ...
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(2012-02-06)Large, complex systems are prone to the phenomenon of livelocks. Once a system enters a livelocked-state, there is at least one activity of the modeled system that cannot be executed from all subsequent states of the ...
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(2019-04-24)Experiments were performed on a slotted natural laminar flow airfoil, the S414. The slotted natural laminar flow airfoil concept was developed to satisfy design constraints of high maximum lift and low profile drag. A ...
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(2011-10-24)Carbon nanofibers (CNFs) derived from polyacrylonitrile (PAN) have not yet demonstrated the high tensile strength and Young’s modulus of their microscale counterparts. This is due to the current lack of understanding of ...
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(1999)The objective of this thesis is to develop a design method together with a design philosophy that allows the design of "subscale" or "hybrid" airfoils that simulate fullscale ice accretions. These subscale or hybrid airfoils ...
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(2004)Five examples, showing both lifting and non-lifting bodies, are presented. The final two examples demonstrate how the method can be applied to the design of geometries consisting of several components. The method was able ...
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(1999)In this thesis, the hybrid approach has been applied to the development of inverse methods for the design of (1) multi-element airfoils for multipoint velocity and boundary-layer prescriptions and (2) airfoils to obtain ...
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(2000)To examine mechanisms for the production of large-amplitude, steady disturbances at elevated Reynolds number, the effective porosity of the medium is reconsidered. Experimental results and detailed microscale flow simulations ...
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(2014-05-30)This study explores the Systems Engineering involved in creating an environmentally green system for transporting cargo using aircraft. The study looked at using hydrogen and the resulting infrastructure to allow the ...
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(2017-04-25)Future large-scale Mars surface exploration missions require landed masses beyond the capability of current entry, descent, and landing technology. High-mass missions will likely use supersonic retropropulsion to increase ...
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(2003)Vortex structures observed in the shear layer were presumed to be the cause of large-scale pressure fluctuations upstream of reattachment at small angles of attack. Pressure spectra near reattachment exhibited wide bandwidth ...
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(2007)Previous iced airfoil investigations have demonstrated somewhat reduced aerodynamic penalties resulting from a three-dimensional ice simulation, compared to those of a two-dimensional ice simulation of a representative ...
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(2013-05-24)The goal of this thesis is to identify potential Near-Earth Asteroids (NEAs) that are viable candidates for human exploration. The computational method incorporated to help identify these targets is the particle swarm ...
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Now showing items 202-221 of 506