Recent Submissions

  • Stress model and strain energy release rate of a prescribed crack in scarf joint/repair of composite panels 

    Yang, Chihdar; Tomblin, John S.; Salah, Lamia (SAGE Publications, 2015-12)
    An analytical model for stress distribution was derived and an analytical model for determining the strain energy release rate of a prescribed crack in a scarf joint or a bonded scarf repair of a composite panel was ...
  • Numerical-based non-dimensional analysis of critical flow of R-12, R-22, and R-134a through horizontal capillary tubes 

    Javidmand, Puya.; Hoffmann, Klaus A. (Elsevier B.V., 2015-10)
    Development of correlations predicting critical mass flow rate and critical pressure distribution through capillary tubes is presented. In order to accomplish such a work, the critical mass flow rate and pressure distribution ...
  • Constrained and unconstrained propeller blade optimization 

    Dorfling, Johann; Rokhsaz, Kamran (American Institute of Aeronautics and Astronautics, 2015-07)
    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 ...
  • Parametric exploration of wing-body junction flow using computational fluid dynamics 

    Hinson, Bryan C.; Hoffmann, Klaus A. (American Institute of Aeronautics and Astronautics, 2015-09)
    The wing-body junction flow is investigated parametrically using computational fluid dynamics in an attempt to understand the effects of junction flow on aircraft drag, with a focus on application to large business jet or ...
  • Frequency and time domain analysis of an aeroelastic wing multiple component structure 

    Chakravarthy, Animesh; Evans, Katie A.; Kuhn, Lisa M.; Walters, Jonathan B. (Taylor & Francis Group, 2015-09-02)
    A multiple component structure consisting of two Euler-Bernoulli beams connected to a rigid mass is used to model the heave dynamics of a wing micro air vehicle. In the time domain, the attainment of a C-0-semigroup in the ...
  • Three-dimensional fluid-structure-interaction simulation of tilting disk mechanical heart valve 

    Aliabadi, Ardavan; Hoffmann, Klaus A. (American Society of Mechanical Engineers, 2014)
    The current computational effort will focus on the numerical analysis of current tiling disk MHVs. In this work an implicit fluid-structure-interaction (FSI) simulation of the Bjork-Shiley design was carried out using ...
  • Optimal scheduling of multispacecraft refueling based on cooperative maneuver 

    Du, Bingxiao; Zhao, Yong; Dutta, Atri; Yu, Jing; Chen, Xiaoqian (Elsevier B.V., 2015-06-15)
    The scheduling of multispacecraft refueling based on cooperative maneuver in a circular orbit is studied in this paper. In the proposed scheme, both of the single service vehicle (SSV) and the target satellite (TS) perform ...
  • Usage and flight loads analysis of King Airs in aerial firefighting missions 

    Kliment, Linda K.; Rokhsaz, Kamran; Nelson, John; Terning, Brett; Weinstein, Edward M. (American Institute of Aeronautics and Astronautics, 2015-05)
    Flight data of Beechcraft King Airs used as aerial supervision modules and lead aircraft by the U.S. Forest Service are analyzed. The operational conditions experienced by the airplanes are studied as well as the magnitude ...
  • Editorial: Message from SAMPE's global president 

    Vizzini, Anthony (SAMPE Publishers, 2015-05)
    One key thing I learned in SAMPE is to always recognize that another colleague has something to contribute. Ours is an experience-heavy profession. We cannot experience the entirety of our world. Thus, others are always ...
  • Minimum-fuel electric orbit-raising of telecommunication satellites subject to time and radiation damage constraints 

    Dutta, Atri; Libraro, Paola; Kasdin, N. Jeremy; Choueiri, Edgar Y.; Francken, Philippe (IEEE, 2014-06-04)
    The capability of a Geostationary satellite to perform electric orbit-raising enables the development of all-electric satellites. Key challenges to the realization of electric deployment of satellites to the Geostationary ...
  • Modified State Observer based adaptive control law design for the Black Kite MAV 

    Subba Reddiar Pappu, Venkatasubramani; Steck, James E.; Shanmugham, Viswanathan; Ramamurthi, Guruganesh (IEEE, 2014-06-04)
    This paper presents the design and simulation of a Modified State Observer (MSO) based adaptive control law, developed by Balakrishnan, for a Micro Aerial Vehicle (MAY). The MSO allows higher adaptive gains than other ...
  • Active wing shaping control of an elastic aircraft 

    Nobleheart, Wilfred; Chakravarthy, Animesh; Nguyen, Nhan (IEEE, 2014-06-04)
    In recent years, lightweight materials have been adopted in airframe design as a means to reduce aircraft weight. These lightweight materials provide adequate strength and durability, but at the expense of reduced structural ...
  • Editorial: Message from SAMPE's global president 

    Vizzini, Anthony (SAMPE Publishers, 2015-03)
    If it has not been apparent through this column, SAMPE has been a significant part of my professional career. Consequently, it has also been a significant part of my life. SAMPE helped me to establish my academic credentials ...
  • Development of a high-order solver for blood flow 

    Khurshid, Hassan; Hoffmann, Klaus A. (Springer International Publishing AG, 2015-01)
    A high-order solver for the blood flow is developed and analyzed using a two-dimensional backward-facing step. In the first part, a Newtonian steady code to solve the incompressible Navier-Stokes (N-S) equations has been ...
  • Editorial: Message from SAMPE's global president 

    Vizzini, Anthony (SAMPE Publishers, 2015-01)
    I grew up in SAMPE during the '90s when the glamour of the past was a constant reminder of what had been and in the 00s when the very essence of SAMPE was in peril. Individuals took action and saved our society. In the ...
  • Perfectly matched layer boundary condition for two-dimensional Euler equations in generalized coordinate system 

    Velu, Srinivasa Perumal; Hoffmann, Klaus A. (Taylor & Francis Group, 2014-07-03)
    In the past, perfectly matched layer (PML) equations have been constructed in Cartesian and spherical coordinates. In this article, the focus is on the development of a PML absorbing technique for treating numerical ...
  • Performance metrics for tiltrotor flight dynamics during the transition regime 

    Sunkara, Vishwamithra Reddy; Nobleheart, Wilfred; Chakravarthy, Animesh (American Institute of Aeronautics and Astronautics, 2014-11)
    For control system design purposes, desirable locations of short period and phugoid poles with their respective damping factors and natural frequencies are specified for fixed-wing aircraft in U.S. Department of Defense ...
  • Editorial: Message from SAMPE's global president 

    Vizzini, Anthony (SAMPE Publishers, 2014-11)
    I have been a member of SAMPE for 27 years. During that time, my professional network and my participation in the society has grown. I began by going to local chapter meetings, then I went to conferences in the United ...
  • Quaternion-Based Coordinates for Nonsingular modeling of high-inclination orbital transfer 

    Libraro, Paola; Kasdin, N. Jeremy; Choueiri, Edgar Y.; Dutta, Atri (American Institute of Aeronautics and Astronautics, 2014-09)
    Recently, the potential of electric propulsion (EP) for orbit transfer of scientific or commercial satellites has begun to be recognized both by satellite manufacturers and providers [1,2]. The increasing interest in EP ...
  • Editorial: Message from SAMPE's global president 

    Vizzini, Anthony (SAMPE Publishers, 2014-09)
    SAMPE was born among nine individuals working in the aerospace industry in Southern California, a likely place in 1944 for rising concerns on the lack of focus on materials and processing within their industry. It was ...

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