Search Constraints

Start Over
Filtering by: Advisor Costello, Mark F. Remove constraint Advisor: Costello, Mark F. Degree Name Doctor of Philosophy (Ph.D.) Remove constraint Degree Name: Doctor of Philosophy (Ph.D.)

Search Results

  • Robust lateral pulse jet control of an atmospheric rocket

    Creator:
    Burchett, Bradley Thomas
    Abstract:
    Uncontrolled direct fire rockets exhibit high impact point dispersion, even at relatively short range, and as such have been employed as area weapons on the battlefield. In order to reduce the dispersion of a direct fire rocket, feedback control is employed to fire short-duration solid rocket pulses mounted near the...
    Resource Type:
    Dissertation
    Full Text:
    Rocket. Abstract approved:_ ________ Mark F. Costello Uncontrolled direct fire rockets exhibit high

  • Lateral pulse jet control of a direct fire atmospheric rocket using an inertial measurement unit sensor system

    Creator:
    Jitpraphai, Thanat
    Abstract:
    Impact point dispersion of a direct fire rocket can be drastically reduced with a ring of appropriately sized lateral pulse jets coupled to a trajectory tracking flight control system. The system is shown to work well against uncertainty in the form of initial off-axis angular velocity perturbations as well as...
    Resource Type:
    Dissertation
    Full Text:
    . Abstract approved: Mark F. Costello Impact point dispersion of a direct fire rocket can be drastically

  • Dynamic modeling, control and linear theory of a projectile equipped with a rotating internal part

    Creator:
    Frost, Geoffrey W.
    Abstract:
    Dynamic modeling of the atmospheric flight mechanics of a projectile equipped with an uncontrolled internal rotating disk is investigated and a modified projectile linear theory is established. It is shown through modeling of this type of projectile that several coefficients of the epicyclic dynamics are altered, leading to changes in...
    Resource Type:
    Dissertation
    Full Text:
    INTERNAL PART IN ATMOSPHERIC FLIGHT Geoffrey W. Frost and Mark F. Costello Journal of Guidance, Control

  • Dynamic modeling, control aspects and model predictive control of a parafoil and payload system

    Creator:
    Slegers, Nathan J.
    Abstract:
    Control issues are investigated for a parafoil and payload system with left and right parafoil brakes used as the control mechanism. It is shown through dynamic modeling and simulation that parafoil and payload systems can exhibit two basic modes of lateral control, namely, roll and skid steering. Using a small...
    Resource Type:
    Dissertation
    Full Text:
    Mark F. Costello Control issues are investigated for a parafoil and payload system with left and

  • Optimal soaring by a small autonomous glider

    Creator:
    Kyle, Jason A.
    Abstract:
    Extending the flight time of an autonomous unmanned air vehicle by soaring is considered. A suboptimal controller is developed and successful static soaring is demonstrated with a 6 degree of freedom glider model. Altitude gain rates of between ¼ and ½ m/s are achieved with this simple implementation. A hybrid...
    Resource Type:
    Dissertation
    Full Text:
    . Abstract approved: __________________________________________________ Mark F. Costello

  • Human gait analysis by gait pattern measurement and forward dynamic model combined with non linear feedback control

    Creator:
    Ko, Seung-uk
    Abstract:
    Normal gait of human is believed to be an adapted motor control result of optimal behavior of individual. Normal gait would be altered by aging or injury without being perceived. Subtle changes in gait which is not easy to detect, can cause many serious problems including joint pains and even...
    Resource Type:
    Dissertation
    Full Text:
    : _______________________________________________________________ Mark F. Costello Normal gait of human is believed to be an adapted motor control result