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 30 for “"convergence characteristics"”.
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Convergence characteristics of the fully stressed design method for plane frames
… the intent of this paper to investigate how the convergence rate of a fully stressed design method using a stress-ratio algorithm may be affected by manipulating various parameters. The parameters studied are: (1) selection of a design variable, (2) relationships between the variables of moment …
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Improving Performance of the Filtered-X Least Mean Square Algorithm for Active Control of Noise Contatining Multiple Quasi-Stationary Tones
… the transfer function of the secondary path. The convergence characteristics of the FXLMS algorithm have been well studied. A convergence parameter is used to optimize the convergence of the algorithm. However, the optimal value for the convergence parameter is frequency dependent. Thus for noise …
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A comparison of digital methods applied to power flow studies
… time required, computer storage necessary, convergence characteristics, and ease of programming and program modification. Sparsity techniques were outlined, and a suggestion of the effects of these techniques on the four algorithms was included. An outline was given of criterion that must be …
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Elementos finitos Taylorianos
… curvilinear boundaries. The element present good characteristics to attend curvatures of the field of displacements and show beter convergence characteristics when compared with other polynomial series representation.
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Probability-One Homotopy Maps for Mixed Complementarity Problems
Probability-one homotopy algorithms have strong convergence characteristics under mild assumptions. Such algorithms for mixed complementarity problems (MCPs) have potentially wide impact because MCPs are pervasive in science and engineering. A probability-one homotopy algorithm for MCPs was …
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Automatic modeling of machining processes
… nature of this model allows for favorable convergence characteristics and low computational costs. This is used to optimize cutting feeds with respect to process constraints for future movements; as more data is collected, the model continuously reinforced. This intelligent controller …
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Decentralized Coordinated Attitude Control of a Formation of Spacecraft
… is proven using Lyaponuv stability theory. Convergence of the attitude controller is proven through the use of an invariance argument. The attitude controller's stability and convergence characteristics are investigated further through numeric simulation of the attitude dynamics of the …
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On low-pass reconstruction and stochastic modeling of PWM signals
… derived. For a sawtooth reference signal, the convergence characteristics between lossless natural sampling and uniform sampling, where a zero-order hold (ZOH) block precedes the comparator, are analyzed. For a given input model, the convergence characteristics are tested with simulations and …
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Integrated topology optimization design and process planning for additive manufacturing
… allows the user control over the optimization’s convergence characteristics which is then further studied to find a robust set of optimization parameters. The resulting topology of the structure is then analyzed for its optimal printing orientation based on a custom-made algorithm which minimizes …
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Accelerating Bayesian inference in computationally expensive computer models using local and global approximations
… this algorithm, concluding that it has favorable convergence characteristics. We make this strategy efficient in practice by introducing a greedy heuristic that adaptively identifies and explores the important input dimensions, or combinations thereof. When the approximation is used within …
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An improved firefly algorithm for optimal microgrid operation with renewable energy
… FA and other algorithms based on optimal cost, convergence characteristics and robustness to validate the effectiveness of the IFA. It shows that the IFA obtained better results in terms of operating costs compared to FA, Differential Evolution (DE), Particle Swarm Optimization (PSO) and Cuckoo …
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Distributed load balancing over directed network topologies
… Balancing approach (O-LB) in terms of speed of convergence and bandwidth usage. A proof is given that shows that the O-LB approach can guarantee convergence to a balanced state if the underlying graph is strongly connected while I-LB may not converge. However, I-LB can increase the speed of …
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Robust Non-Matrix Based Power Flow Algorithm for Solving Integrated Transmission and Distribution Systems
… flow algorithms. This comparison illustrates convergence characteristics of different power flow algorithms in the presence of voltage stability concerns. It is also demonstrated that the GTA power flow solves integrated transmission and distribution system models. Advantages that GTA power …
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ACCURACY IMPROVEMENT OF CABLE HARNESS MODELING & ANALYTICAL MODELING OF MULTI-REFLECTIONS IN HIGH-SPEED SIGNAL CHANNELS
… of the hybrid MTL method. In this research, the convergence issue in the GMTL method near the resonant frequencies of a cable harness system is analyzed, and the solution to improve the convergence characteristics near resonant frequencies is proposed. Also, the MS method has been improved by …
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Combined gradient-restoration algorithm for optimal control problems
… stepsize are discussed. In order to improve the convergence characteristics, the inclusion of a restoration phase is studied. In this connection, three versions of the algorithm are studied: the combined gradient-restoration algorithm (CGRA); the combined gradient-restoration algorithm with …
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Energy management of micro-grid using cooperative game theory
… be able to compare the quality of solution and convergence characteristics. The investigation reveals that TLBO gives the highest quality solutions and better convergence characteristics compared to PSO and GA.
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Aerodynamics study of the flowfield at a shelterbelt
… scheme to simulate the turbulent aerodynamic characteristics of a shelterbelt. Qualitative results from field observation of a living-tree shelterbelt under real atmospheric flow conditions and a wind-tunnel flow visualization of scale-model fences were used to explore the fundamental …
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Non-linear dynamic modeling using component mode synthesis
… are provided to investigate the accuracy and convergence characteristics of the new method for specific problems.
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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
… to validate its effectiveness. Furthermore, convergence characteristics and robustness of the method had been assessed through comparison with results reported in literature. The PS technique was found to be very competitive in terms of its overall performance. Variations of the technique …
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Broadband Multilevel Fast Multipole Methods
… small boxes. Nevertheless, they have the same convergence characteristics as the propagating plane wave decomposition. Therefore, these decompositions are also very efficient. Finally, the novel techniques are applied in the full-wave homogenization of various metamaterials.
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