Now showing items 20-39 of 165

  • Collision cones for quadric surfaces 

    Chakravarthy, Animesh; Ghose, Debasish (IEEE, 2011-12)
    The problem of collision prediction in dynamic environments appears in several diverse fields, which include robotics, air vehicles, underwater vehicles, and computer animation. In this paper, collision prediction of objects ...
  • Computational methodology for bleed air ice protection system parametric analysis 

    Hoffmann-Domingos, Rodrigo (Wichita State University, 2010-08)
    Aircraft in-flight icing is a major safety issue for civil aviation, having already caused hundreds of accidents and incidents related to aerodynamic degradation due to post takeoff ice accretion. Airplane makers have ...
  • A conceptual study of airfoil performance enhancements 

    Ghoddoussi, Armin (Wichita State University. Graduate School., 2012-04-18)
    A conceptual study of performance enhancing devices for an airfoil is performed using Computational Fluid Dynamics. Three simple, passive devices are examined to explore alternate methods for stall control and lift-to-drag ...
  • A conceptual study of airfoil performance enhancements using CFD 

    Ghoddoussi, Armin (Wichita State University, 2011-07)
    A conceptual study of performance enhancing devices for an airfoil is performed using Computational Fluid Dynamics. Three simple, passive devices are examined to explore alternate methods for stall control and lift-to-drag ...
  • Constrained and unconstrained propeller blade optimization 

    Dorfling, Johann; Rokhsaz, Kamran (American Institute for Aeronautics and Astronautics, Inc., 2014-01-17)
    Propeller optimization by means of calculus of variations is addressed in this paper. A procedure for deriving the Euler-Lagrange equations for both unconstrained and constrained propeller blade twist optimization is ...
  • Crack arrest capabilities in adhesively bonded skin and stiffener 

    Habeeb, Shamsuzuha; Keshavanarayana, Suresh R. (Wichita State University. Graduate School, 2009-05-01)
    The crack arrest capabilities and the load bearing characteristic of a stiffened and unstiffened panel subjected to uniform remote displacement field is examined in this paper. A four stringer stiffened wide panel is ...
  • Crack arrest capabilities of an adhesively bonded skin and stiffener 

    Habeeb, Shamsuzuha (Wichita State University, 2012-12)
    The crack arrest capabilities and the load bearing characteristic of a stiffened and unstiffened panel subjected to remote tension loading is examined in this work. We make use of cohesive interface elements to predict the ...
  • Crack propagation analysis using acoustic emission sensors for structural health monitoring systems 

    Kral, Zachary Tyler; Horn, Walter J.; Steck, James E. (Hindawi Publishing Corporation, 2013)
    Aerospace systems are expected to remain in service well beyond their designed life. Consequently, maintenance is an important issue. A novel method of implementing artificial neural networks and acoustic emission sensors ...
  • Crushing behavior of corrugated laminated beams at different stroke rates 

    Tan, Kian Yip (Wichita State University, 2013-12)
    Crashworthiness has become an important aspect in vehicle design due to the stringent requirements on occupant safety under survivable accident scenarios. The uses of composite materials have increased due to their ...
  • Cure-induced residual stresses in a notched laminate 

    Febrinaldy, Budi (Wichita State University, 2014-07)
    The cure-induced residual stresses in the vicinity of the free edge of an open hole in IM7/977-2 carbon/epoxy laminates have been investigated. Holes in laminated structures are intended for fastener joints, access ports ...
  • Damage detection in metal structures using acoustic emission 

    Zachary Kral; Horn, Walter J.; Steck, James E. (Wichita State University. Graduate School, 2009-05-01)
    The structural components of many machines remain in service far beyond their designed lifetimes. This is especially true in the field of aerospace structures, where aircraft, wind turbines, satellites, and other components ...
  • Damage tests on an adaptive flight control system 

    Steck, James E.; Sayeed, F. (Wichita State University. Graduate School., 2006-04-28)
  • Demonstration of the optimal control modification for general aviation: design and simulation 

    Reed, Scott (Wichita State University, 2010-12)
    This work presents the design and simulation of a model reference adaptive flight control system for general aviation. The controller is based on previous adaptive control research conducted at Wichita State University ...
  • Design and implementation of a low cost thermal soaring system for uninhabited aircraft 

    Hazen, Zachary Robert Timm (Wichita State University, 2012-05)
    The use of atmospheric updrafts as an energy source for long endurance flight has proven to be extremely advantageous for birds, remote control sailplanes, and manned soaring vehicles. Recent research conducted by Michael ...
  • Detached eddy investigation of cavity resonance phenomenon in slender cavities 

    Syed, Shoeb Ahmed; Hoffmann, Klaus A. (AMER INST AERONAUTICS ASTRONAUTICS, 2013-05)
    Aerodynamic noise generation due to the presence of surface discontinuity has been a topic of research for more than five decades. Most investigations carried out are on cavities ranging from small gaps to large cavities ...
  • Detached eddy simulation of turbulent flow over an open cavity with and without cover plates 

    Syed, Shoeb Ahmed (Wichita State University, 2010-05)
    The study of three-dimensional open cavity flow with and without cover plates at the edges of the cavity at freestream Mach number of 0.85 was performed. Such open cavities find their application in landing gear wells, ...
  • Detached eddy simulations of partially covered and raised cavities 

    Gadiparthi, Sandeep Kumar (Wichita State University, 2012-05)
    The study of cavity flows has played a crucial role in understanding the aeroacoustics and aerodynamics of bodies with cavities. This new understanding has allowed challenges such as reduction in noise levels to be addressed. ...
  • Detached-eddy simulation of turbulent flow over a wiper blade 

    Urban, Michael Patrick (Wichita State University, 2008-12)
    Decreasing noise and improving efficiency is an important trend for the future jetliner industry. The predominant sources of aerodynamic noise are created from attached turbulent boundary layers (TBL) as well as separated ...
  • Detection of damage in metal lap joint by combined passive and active methods 

    Kral, Zachary Tyler; Horn, Walter J. (Wichita State University. Graduate School., 2008-04-25)
    Fatigue cracks and corrosion damage are critical issues for aircraft, especially for the aging fleet still in use today. The most frequent area of damage is on the aircraft skin, more specifically the joint regions. A ...
  • Development and application of perfectly matched layer for numerical boundary treatment 

    Velu, Srinivasa Perumal (Wichita State University, 2010-05)
    This master’s-level thesis work had focused on the boundary treatments for computational fluid dynamics problems, especially those with unbounded domains. Therefore, it involved a rigorous literature survey on boundary ...