Global ETD Search
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 28 for “"Sequential Quadratic Programming"”.
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A structured reduced sequential quadratic programming and its application to a shape design problem
… into the design and flow parts. To achieve this, Sequential quadratic programming with BFGS update for the reduced Hessian of the Lagrangian function is used with Variable reduction method which preserves the structure of the Jacobian in representing the null space basis matrix. By updating the …
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Método dimensional óptimo de sistemas multicuerpo con restricciones dinámicas: aplicación al diseño de mecanismos planos
… The optimisation is performed by means of a sequential quadratic programming algorithm implemented through routine E04UCF of the mathematical library NAG. The resulting method can be applied to multibody systems composed of rigid bodies, irrespective of the dimension of their movement, …
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Optimization of tensegrity structures
… forces variables are dealt with an internal sequential quadratic programming algorithm. The performance of this approach is evaluated on a typical cantilever configuration.
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Six degree of freedom optimal trajectories for satellite rendezvous
… for describing the attitude motions, and a sequential quadratic programming optimization code. Initial solutions are found assuming no coupling between the translational and rotational motions and with no imposed constraint on the time of the rendezvous. Further solutions are then found by …
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Optimisation of variable helix end milling tools
… against a more traditional approach, namely Sequential Quadratic Programming. Numerical studies indicated that the Differential Evolution optimisation performed much better than Sequential Quadratic Programming due to the nonlinearity of the optimisation problem. The numerical study predicted …
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A comparison of discrete and flow-based models for air traffic flow management
… the origins and destinations of the aircraft. Sequential quadratic programming is used to optimize the continuous model. A comparison of the performance of the two models based on a set of large scale test cases is provided. Preliminary results suggest that the linear programming relaxation of …
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Reconfigurable Autonomous Surface Vehicles : perception and trajectory optimization algorithms
… planners for urban ASV operations. Efficient sequential quadratic programming and real-time B-spline parameterized mixed-integer quadratic programming multi-ASV motion planners are presented respectively for formation changing and shapeshifting operations, enabling use cases such as ASV …
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Design of power systems for extensible surface mobility systems on the Moon and Mars
… systems were considered in this thesis. The Sequential Quadratic Programming method was used to find the optimal power system configurations based on the concept of a previous MIT study. Several case studies on the Moon and Mars were carried out to show the usefulness of the model and to …
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From Spheres to Sheets: Colloidal Hydrodynamics, Thermodynamics, and Statistical Inference
… Drawing on the Riemannian optimization and sequential quadratic programming literature, a practical algorithm that we call Locally Feasibly Projected Sequential Quadratic Programming (LFPSQP) is constructed to conduct feasible optimization on arbitrary implicitly defined constraint …
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Parameter optimization of atmospheric skip trajectories for use in minimum fuel usage transfer orbits
… to the nonlinear problem is determined via sequential quadratic programming which satisfies the Kuhn-Tucker optimality conditions for constrained minimization. It is found that for transfer between coplanar and noncoplanar orbits, solutions using the generalized impulse compare favorably …
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A Structural Optimization Scripted Software System
… found by the 3D beam finite element model with Sequential Quadratic Programming (SQP) solver and the graphical optimization method is 1.99%. The percent difference between the results from the 3D beam finite element model with SQP solver and the result from 3D brick finite element model with …
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Design of Surface Texture for the Enhancement of Tribological Performance
… optimization, a numerical approach based on the sequential quadratic programming (SQP) algorithm is used to determine the optimum texture shape for different operating conditions, including unidirectional and bidirectional sliding and rotating. The optimization result for rotating is further …
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Numerical approaches to optimize dispatch on microgrids with energy storage
… including active-set, interior-point method, sequential quadratic programming (SQP) and trust-region-reflective are discussed and compared to find the relatively fast and robust optimization algorithm. The computation was implemented by using the MATLAB nonlinear programming solver 'fmincon'. …
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Parametric Design and Optimization of an Upright of a Formula SAE car
… of the optimization problem as a nonlinear programming problem, based on the design objectives and suspension geometry. By conducting parameter sensitivity analysis, three design variables were chosen from a pool of five, and response surfaces were constructed to represent the constraints …
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Solving dynamic economic dispatch problems using pattern search based methods with particular focus on the West Doha Power Station in Kuwait
… Genetic Algorithm (GA), Pattern Search (PS) and Sequential Quadratic Programming, and advantages of such a combined technique reported.<br/>A DED model for the West Doha Power Station (WDPS) in Kuwait has been developed and the penetration of renewable energy resources to this model has been …
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Concurrent Aerodynamic Shape / Cost Design Of Magnetic Levitation Vehicles Using Multidisciplinary Design Optimization Techniques
… software. Optimizations are performed using sequential quadratic programming for a 5 design variable problem. This problem is reformulated using 7 design variables to overcome problems due to non-smooth design space. The reformulation of the problem provides a smoother design space which is …
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Optimal control of fermentation processes
… of MATLAB and SIMULINK as tools used in programming algorithms and simulation for optimal control of non linear systems. The thesis shows how to approach an optimisation problem with different techniques and to compare them on the same basis. The main reasons for carrying out research on …
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Structural Optimization of Bell Crank using Adaptive Response Surface Optimization
… constrained optimization is executed through the sequential quadratic programming (SLSQP solver) from the SciPy library, allowing optimization on the response surfaces representing the objective function and constraints to identify the optimal solution. The optimal solution is obtained utilizing a …
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Optimization Techniques Exploiting Problem Structure: Applications to Aerodynamic Design
… Our all-at-once methods are based on the Sequential Quadratic Programming method, and are designed to exploit the structure inherent in a given problem. The first method is a Reduced Hessian formulation which projects the optimization problem to a lower dimension design space. The second …
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Percolation in Two-Dimensional Grain Boundary Structures and Polycrystal Property Closures
… methods. The resultant procedure uses quadratic programming (QP) to find as many points on the closure as possible, changing to the less efficient sequential quadratic programming (SQP) only where necessary to find points on concave, or almost concave, regions. Improvements on the …
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