Thesis (M.App.Sc.) - Carleton University, 2002. / Includes bibliographical references (p. 80-81). Also available in electronic format on the Internet.

Thesis (Ph. D.)--University of Texas at Austin, 1998. / Vita. Includes bibliographical references (leaves 86-89). Available also in a digital version from Dissertation Abstracts.

Thesis. 1975. Ph.D.--Massachusetts Institute of Technology. Dept. of Nuclear Engineering. / Includes bibliographical references. / by Owen L. Deutsch. / Ph.D.

[pt] O presente trabalho apresenta um programa de computador digital, que permite avaliar as sobre tensões à freqüência industrial decorrentes da energização de linhas de transmissão. São representados em detalhes o gerador e o seu sistema de excitação. Para uma mesma configuração gerador-excitação é possível simular-se a energização da linha para vários valores de carregamento do gerador e para diferentes valores iniciais de tensão. A utilização prática do programa desenvolvido afigura-se grande, pois pelo seu uso evita-se o emprego de um programa de estabilidade a n máquinas, que geralmente não é adaptado a este tipo de aplicação. / [en] This paper introduces a digital computer program that enables dynamic overvoltages evaluation during transmission line energization. Both synchronous machine and excitation system arefull scale represented. For a given machine-excitation configuration it is possible to simulate line energization for various machine loadings and different initial terminal voltages. The program has great practical advantage because its employ can avoid a multi-machine stability program utilization, which is not adequate for this kind of aplication.

[pt] Este trabalho tem como objetivo a aplicação de processos heurísticos no problema de minimização dos estados de uma máquina seqüencial incompleta. Foi desenvolvido um método heurístico e implementado num computador digital, na linguagem PL/I. o programa foi aplicado a vários exemplos encontrados na literatura sobre o assunto. É levantado o problema da avaliação dos processos heurísticos aplicados a minimização de máquinas seqüenciais incompletas. / [en] The application of heuristic techniques to the minimization of incompletely specified sequential machines is presented. An heuristic method was developed and implemented by a Pl/I program, ehich was applied to several examples found in the related literature. Finally it is mentioned the problem of evaluating heuristic processes applied to the minimization of incompletely specified sequential machine.

<p> The feasibility of adaptive control of a nuclear reactor is investigated. For practical reasons, an actual operating power plant is chosen, and a digital computer model developed for the reactor and associated control system. The effects of parameter variations on the transient response of the overall system are studied, and the advantages of using an adaptive controller established. An algorithm for the adaptation scheme is developed, and applied successfully to control the nuclear reactor. </p> / Thesis / Master of Engineering (MEngr)

No description available.

No description available.

This thesis presents the development of a multifaceted conceptual framework for discrete-event simulation and its implementation within an integrated visual simulation support environment (VSSE). The intertwined research objectives regarding the conceptual framework and the companion VSSE are presented. A literature review of related work is conducted. The core of the thesis describes the conceptual framework (called the DOMINO), the VSSE and each of the tools from its supporting toolset, and the VSMSL (Visual Simulation Model Specification Language). Three example model applications (bus route, traffic intersection, and branch operations examples) demonstrate the use of the VSSE and the underlying DOMINO. The thesis is evaluated using the research objectives as assessment criteria. The DOMINO is truly multifaceted. Both graphical and object-oriented, the DOMINO provides design and implementation guidance over the simulation model life cycle. The DOMINO is not restricted to specific problem domains but is independent of application domain. Several different perspectives for developing model component logic are available to modelers under the VSMSL. The VSSE demonstrates significant advances in integrated, automated support for model development which include graphical facilities for definition and specification and effective verification techniques. The VSSE underscores the contributions of the research effort and has helped to identify potential areas for future research. / Ph. D.

This thesis introduces the application of computer-aided engineering techniques to the dynamic analysis of reciprocating compressor designs. The analysis process is detailed in three steps. The first step, an interactive pre-processor, develops the shaking forces and torques acting on the machine. The second step is a batch processed program that performs a dynamic simulation of the compressor in operation. The compressor and mounting are simulated as a rigid body with six degrees-of-freedom (X, Y, and Z translations and roll, pitch, and yaw) mounted to the ground with up to 25 arbitrarily oriented springs and dampers. Additionally, an eigenanalysis is performed that returns the natural frequencies and modes for the machine. The final step is an interactive postprocessor where the user may examine the results of the eigenanalysis as well as the operating orbit of the machine. A series of programs that implement the analysis process was developed. The specialized formulations for the six coupled, non-linear equations of motion are presented. Color computer graphics and animation are used for visual output displays. The dynamic simulation program is designed to function on many computer systems, from low-cost personal computers to large mainframes, while the pre- and post-processing programs are designed for the personal computer. The programs were tested by comparing the predicted results with those of an Ingersoll-Rand model 242 two piston, two stage, 3 hp compressor. The correlation between the experimental and predicted results show that the programs can accurately simulate the dynamics of a reciprocating compressor operating at steady-state. Typically, the acceleration results agree for the six degrees-of-freedom in both the time and frequency domain to within 8%. / Master of Science