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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 29 for “"shooting method"”.
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A Guidance Algorithm for Unmanned Surface Vehicle Exhibiting Sternward Motion
… programming problem by utilizing the direct shooting method. The nonlinear programming problem is solved using the Hooke-Jeeves numerical algorithm. We provide successful simulation and field-trial results that demonstrate the performance of backward path planning algorithm.
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Nonlinear flutter of composite shear-deformable panels in a high-supersonic flow
… flutter equations are derived via Galerkin’s method. Periodic solutions and their bifurcations are obtained by using a predictor-corrector type of numerical integration method, i.e., the Shooting Method, in conjunction with the Arclength Continuation Method for the static solution. For the …
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Cooperative Power-Limited Optimal Rendezvous Between Many Spacecraft
… gravity field. Numerical solutions using a shooting method and the finite difference method are used in order to determine the trajectories of the spacecraft. Unlike previous investigations, this work is not restricted to a rendezvous of two spacecraft around a circular orbit, but a few …
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Singular-perturbation analysis of climb-cruise-dash optimization
The method of singular-perturbation analysis is applied to the determination of range-fuel-time optimal aircraft trajectories. The problem is shown to break down into three sub-problems which are studied separately. In particular, the inner layer containing the altitude path-angle dynamics is …
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Linear stability analysis of non-reacting and reacting elliptical jets
… out. For the circular jet, the Michalke's shooting method has been extended to the case with a swirling basic flow. For the elliptical jet, an algebraic eigenvalue problem has been formulated by applying the Chebyshev and Fourier spectral collocation method to the disturbance equations of …
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Slip effect on stagnation-point flow past a permeable quadratically stretching or shrinking sheet
… equations are solved numerically by using shooting method built in Maple software for different values of parameters. The results shows dual solutions for shrinking parameter which are upper branch as the first solution and lower branch as the second solution. For stretching case, single …
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Maximum likelihood estimation in dynamical systems
… partially observed. <br>Here maximum likelihood methods are used for the estimation of the <br>parameters from noisy measurements and to construct the unobserved <br>components of a system. <br>These methods take into account the entire information about the <br>deterministic nature of the …
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Using the Circular Restricted Three-Body Problem to Design an Earth-Moon Orbit Architecture for Asteroid Mining
… and geosynchronous (GEO) orbits. A single shooting method (SSM) and natural parameter continuation (NPC) numerical algorithm is used to compute a family of L3 Lyapunov orbits. Invariant Manifold Theory (IMT) is leveraged to find the set of feasible hyperbolic invariant stable and unstable …
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Analysis of the vibrations of inflatable dams under overflow conditions
… from membrane theory are solved by a multiple shooting method. The boundary element method is used to solve Laplace’s equation defined on the overflow domain. An iterative scheme is adopted to obtain the shape of the dam, as well as the location of the free surface. From the equilibrium state, …
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Stagnation-point flow past a vertical stretching or shrinking sheets in a nanofluid with slip effect
… non-linear ODEs are solved numerically using the shooting method and the numerical codes have been developed using software known as Maple. The effects of various emerging parameters such as Prandtl number, Pr, Lewis number, Le, the stretching/shrinking parameter, 6 , Brwonian motion …
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Two-Dimensional Vibrations of Inflated Geosynthetic Tubes Resting on a Rigid or Deformable Foundation
… incorporating boundary conditions by use of a shooting method. General assumptions are made that involve the geotextile material and supporting surface. The geosynthetic material is assumed to act like an inextensible membrane and bending resistance is neglected. Friction between the tube and …
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Energy Economic Modeling and Optimization
… of such regions. To construct a general solution method, a one-sector economic model serves as a starting point. Population growth, labor force participation and labor productivity are assumed as exogenous inputs to a utility optimization calculation. A one-group dynamic population model is used …
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MHD heat and MASS transfer of jet nanofluids flow on the porous wall with chemical reaction
… Fourth-fifth order Rung-Kutta Fehlberg numerical method with shooting method. It has been studied by the effect of all parameters involved that the heat transfer rate of SWCNTs-water is higher than 2 3 Al O -water and Cu-water whereas the mass transfer rate of Cu-water is higher than SWCNTs-water …
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A partial state collocation method for covariance optimal control
An overview is presented for two methods of incorporating the covariance in an optimal control problem. Including the covariance in the optimal control problem can be beneficial in the field of navigation where it is desirable to design trajectories which either minimize navigation error or …
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Numerical methods for optimization problems in water flow and reactive solute transport processes of xenobiotics in soils
… equations (ODEs). 2. ECOFIT: An efficient method for parameter estimation of xenobiotics in soils: The parameter estimation problem constrained by PDEs and ODEs is transformed by discretization into a large scale nonlinear constrained least-squares problem. Finite differences are employed …
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Identification, reduced order modeling and model updating of nonlinear mechanical systems
In this dissertation, we propose a new method for global/local nonlinear system identification, reduced order modeling and nonlinear model updating, applicable to a broad class of dynamical systems. The global aspect of the approach is based on analyzing the free and forced dynamics of the system …
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Investigation of the Mechanical Behavior of Microbeam-Based MEMS Devices
… sensors, an AC harmonic force. Further, a novel method that uses a reduced-order model is introduced for simulating the behavior of microbeams under a DC electrostatic force. The presented method shows attractive features, like for example, a high stability near the pull-in and a low …
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Memory efficient approaches of second order for optimal control problems
… value problem. There are a variety of numerical methods to solve these problems. The so-called indirect approach is considered detailed in this thesis. The indirect methods solve decoupled boundary value problems resulting from the necessary conditions for the optimal control problem. The …
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Numerical Methods for Parameter Estimation and Optimal Control of the Red River Network
In this thesis efficient numerical methods for the simulation, the parameter estimation, and the optimal control of the Red River system are presented. The model of the Red River system is based on the Saint-Venant equation system, which consists of two nonlinear first-order hyperbolic Partial …
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Two-step Component Mode Synthesis with convergence for the eigensolution of large-degree-of-freedom systems
… calculated in the first step. The method is developed using constraint modes for system synthesis. The eigenvectors resulting from the initial eigenproblem solution are used to transform the system matrices; this results in a non-linear eigenvalue problem which is solved by a …
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