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Engineering design studies can often be cast in terms of optimization problems. However, for such an approach to be worthwhile, designers must be content that the optimization techniques employed are fast, accurate and robust. This paper describes recent studies of convergence and robustness problems found when applying genetic algorithms (GAS) to the(More)
This paper examines the application of passive vibration control methods to a simplified satellite boom. It is suggested that such methods may allow an efficient means by which to control structural vibrations. In this research, an initial structure is designed having a regular , repeating geometric pattern. This design is then modified using a Genetic(More)
Over the last decade, Evolutionary Algorithms (EAs) have emerged as a powerful paradigm for global optimization of multimodal functions. More recently , there has been significant interest in applying EAs to engineering design problems. However, in many complex engineering design problems where high-fidelity analysis models are used, each function(More)
This article describes a numerical method that may be used to ee-ciently locate and track underwater sonar targets in the near-eld, with both bearing and range estimation, for the case of very large passive arrays. The approach used has no requirement for a priori knowledge about the source and uses only limited information about the receiver array shape.(More)
This paper presents multi-element Stochastic Reduced Basis Methods (ME-SRBMs) for solving linear stochastic partial differential equations. In ME-SRBMs, the domain of definition of the random inputs is decomposed into smaller subdomains or random elements. Stochastic Reduced Basis Methods (SRBMs) are employed in each random element to evaluate the response(More)
The traditional approach to improving the lethality of a missile has been to concentrate efforts in the guidance and control systems to improve accuracy and agility. In this paper, we consider how optimizing the endgame, the final few milliseconds before detonation, can yield improvements in overall lethality. As there is likely to be uncertainty in both(More)
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