Search Results - "Kennedy, Graeme"

Quasi-Newton corrections for compliance and natural frequency topology optimization problems by Fu, Yicong, Kennedy, Graeme J.

“…Sequential quadratic programming and interior point methods are effective general purpose optimization algorithms that sometimes exhibit poor performance in…”
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Topology optimization using an eigenvector aggregate by Li, Bao, Fu, Yicong, Kennedy, Graeme J.

“…Topology optimization problems with natural frequency or structural stability criteria often utilize objective or constraint functions computed from the…”
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Improved constraint-aggregation methods by Kennedy, Graeme J., Hicken, Jason E.

“…Many constraints in design-optimization problems take the form of bounds on a physical quantity over a domain. These infinite-dimensional constraints are often…”
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Strategies for adaptive optimization with aggregation constraints using interior-point methods by Kennedy, Graeme J.

“…Constraint-aggregation methods are used in engineering optimization problems to approximately impose a bound on a quantity of interest in a differentiable…”
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A full-space barrier method for stress-constrained discrete material design optimization by Kennedy, Graeme J.

“…In this paper, we present a full-space barrier method designed for stress-constrained mass minimization problems with discrete material options. The advantages…”
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High-fidelity aerostructural optimization of tow-steered composite wings by Brooks, Timothy R., Martins, Joaquim R.R.A., Kennedy, Graeme J.

“…Over the past several decades, composites have increasingly become the material of choice in modern aircraft structural design. This is primarily due to the…”
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A sequential convex optimization method for multimaterial compliance design problems by Kennedy, Graeme J., Chin, Ting Wei

“…•Multimaterial and topology compliance designs are optimized via a sequential convex method.•Discrete material optimization parametrization utilizes either…”
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A parallel finite-element framework for large-scale gradient-based design optimization of high-performance structures by Kennedy, Graeme J., Martins, Joaquim R.R.A.

“…Structural optimization using gradient-based methods is a powerful design technique that is well suited for the design of high-performance structures. However,…”
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An evaluation of constraint aggregation strategies for wing box mass minimization by Lambe, Andrew B., Kennedy, Graeme J., Martins, Joaquim R. R. A.

“…Constraint aggregation makes it feasible to solve large-scale stress-constrained mass minimization problems efficiently using gradient-based optimization where…”
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Enabling large-scale multidisciplinary design optimization through adjoint sensitivity analysis by Martins, Joaquim R. R. A., Kennedy, Graeme J.

“…This paper is written to honor Raphael T. Haftka’s seminal contributions to multidisciplinary design optimization. We focus on those contributions that…”
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A parallel aerostructural optimization framework for aircraft design studies by Kennedy, Graeme J., Martins, Joaquim R. R. A.

“…Preliminary aircraft design studies use structural weight models that are calibrated with data from existing aircraft. Computing weights with these models is a…”
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Measuring the foveal avascular zone in diabetes: A study using optical coherence tomography angiography by Aitchison, Ross T, Kennedy, Graeme J, Shu, Xinhua, Mansfield, David C, Kir, Rachel, Hui, Jasmine, Shahani, Uma

“…Aims/Introduction Diabetes is a global issue that currently affects 425 million people worldwide. One observable microvascular complication of this condition…”
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Discrete thickness optimization via piecewise constraint penalization by Kennedy, Graeme J.

“…Structural engineers are often constrained by cost or manufacturing considerations to select member thicknesses from a discrete set of values. Conventional,…”
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Sub-clinical thickening of the fovea in diabetes and its relationship to glycaemic control: a study using swept-source optical coherence tomography by Aitchison, Ross T., Kennedy, Graeme J., Shu, Xinhua, Mansfield, David C., Shahani, Uma

“…Background Accumulation of multiple pockets of fluid at the fovea, as a complication of poor blood glucose control in diabetes, causes impairment of central…”
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Non-linear global pooling in the discrimination of circular and non-circular shapes by Schmidtmann, Gunnar, Kennedy, Graeme J., Orbach, Harry S., Loffler, Gunter

“…► How is local information integrated in shape processing? ► Results are consistent with two regimes. ► Probability summation accounts for partially modulated…”
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A laminate parametrization technique for discrete ply-angle problems with manufacturing constraints by Kennedy, Graeme J., Martins, Joaquim R. R. A.

“…In this paper we present a novel laminate parametrization technique for layered composite structures that can handle problems in which the ply angles are…”
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Correction to: Sub-clinical thickening of the fovea in diabetes and its relationship to glycaemic control: a study using swept-source optical coherence tomography by Aitchison, Ross T., Kennedy, Graeme J., Shu, Xinhua, Mansfield, David C., Shahani, Uma

“…The published online version contains mistake on the top line of the third part of the equation. It should be: 27(πC1 + πC2 + πC3 + πC4). The πC3 seems to have…”
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Distinct lower visual field preference for object shape by Schmidtmann, Gunnar, Logan, Andrew J, Kennedy, Graeme J, Gordon, Gael E, Loffler, Gunter

“…Humans manipulate objects chiefly within their lower visual field, a consequence of upright posture and the anatomical position of hands and arms.This study…”
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Measuring visual cortical oxygenation in diabetes using functional near-infrared spectroscopy by Aitchison, Ross T., Ward, Laura, Kennedy, Graeme J., Shu, Xinhua, Mansfield, David C., Shahani, Uma

“…Aims Diabetes mellitus affects about 6% of the world’s population, and the chronic complications of the disease may result in macro- and micro-vascular…”
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The chromatic selectivity of visual crowding by Kennedy, Graeme J, Whitaker, David

“…Precortical vision is mediated by three opponent mechanisms that combine receptoral outputs to form a luminance channel (L + M) and two chromatic channels,…”
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