Suchergebnisse - "Gradient-based optimisation algorithms"

A gradient-based optimization algorithm to solve optimal control problems with conformable fractional-order derivatives von Gong, Zhaohua, Liu, Chongyang, Teo, Kok Lay, Wu, Yonghong

“… We first propose a nonlinear fractional optimal control problem subject to general equality and inequality constraints …”
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A geometric projection method for designing three‐dimensional open lattices with inverse homogenization von Watts, Seth, Tortorelli, Daniel A.

“… under given loads, subject to various imposed constraints, such as an upper bound on the mass of the structure …”
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A heuristic smoothing procedure for avoiding local optima in optimization of structures subject to unilateral constraints von Hilding, D.

“… Structural optimization problems are often solved by gradient-based optimization algorithms, e.g …”
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A new computational approach for optimal control problems with multiple time-delay von Wu, Di, Bai, Yanqin, Yu, Changjun

“… when no time delays are involved. The approximate problems can then be solved by gradient-based optimization algorithms …”
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Constructal flow orientation in conjugate cooling channels with internal heat generation von Bello-Ochende, T., Olakoyejo, O.T., Meyer, J.P., Bejan, A., Lorente, S.

“… other. The geometric configurations were determined in such a way that the peak temperature was minimised subject to the constraint of fixed global volume of solid material …”
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Constructal conjugate cooling channels with internal heat generation von Olakoyejo, O.T., Bello-Ochende, T., Meyer, J.P.

“… A gradient-based optimisation algorithm is applied in order to search for the best and optimal geometric configurations that improve …”
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An efficient approach to the determination of Equivalent Static Wind Loads von Patruno, L., Ricci, M., Miranda, S. de, Ubertini, F.

“… By considering a smoothed version of the maximum/minimum operator, efficient, gradient based, optimization algorithms can be used in order to drive the least square minimization which conduces …”
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System-reliability-based design and topology optimization of structures under constraints on first-passage probability von Chun, Junho, Song, Junho, Paulino, Glaucio H.

“… For the purpose of reliability assessment of a structure subject to stochastic excitations, the probability of the occurrence of at least one failure event over a time interval, i.e …”
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Mathematical optimisation of laminar forced convection heat transfer through a vascularised solid with square channels von Olakoyejo, O.T., Bello-Ochende, T., Meyer, J.P.

“… The optimisation was subject to the constraint of a fixed global volume of solid material, but the elemental volume was allowed to morph …”
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Constructal optimisation of conjugate triangular cooling channels with internal heat generation von Meyer, J.P., Olakoyejo, O.T., Bello-Ochende, T.

“… The configurations were optimised in such a way that the peak temperature of the heat generating solid was minimised subject to the constraint …”
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Reliability-based design optimization under dependent random variables by a generalized polynomial chaos expansion von Lee, Dongjin, Rahman, Sharif

“… and score functions for estimating the sensitivities of the failure probability with respect to design variables, and standard gradient-based optimization algorithms, resulting in a multi-point single-step design process …”
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Optimal train control via switched system dynamic optimization von Zhong, Weifeng, Lin, Qun, Loxton, Ryan, Lay Teo, Kok

“… Then, using control parameterization and time-scaling techniques, we approximate the switching control problem by a finite-dimensional optimization problem, which is still subject to the challenging …”
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Stochastic design optimization accounting for structural and distributional design variables von Ren, Xuchun, Rahman, Sharif

“… to distributional and structural design variables; and standard gradient-based optimization algorithms …”
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Design sensitivity and reliability-based structural optimization by univariate decomposition von Rahman, S., Wei, D.

“… with respect to design variables, and standard gradient-based optimization algorithms. In both reliability and sensitivity analyses, the proposed effort has been reduced to performing multiple one-dimensional integrations …”
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Novel computational methods for stochastic design optimization of high-dimensional complex systems von Ren, Xuchun

“… The primary objective of this study is to develop new computational methods for robust design optimization (RDO) and reliability-based design optimization …”
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COLLABORATIVE OPTIMIZATION OF REMOTE SENSING SMALL SATELLITE MISSION USING GENETIC ALGORITHMS von Jafarsalehi, A, Zadeh, P Mohammad, Mirshams, M

“… Abstract- This paper focuses on the development of an efficient distributed collaborative optimization method for the design of remote sensing small satellite …”
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Optimization of metal-forming process via a hybrid intelligent optimization technique von Li, D. Y., Peng, Y. H., Yin, J. L.

“… Gradient-based optimization algorithms are subject to mathematical restrictions of discontinuous searching space, while nongradient optimization algorithms often lead to excessive computation time …”
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Robust time-delay estimation for nonlinear systems using inexact output von Gong, Zhaohua, Liu, Chongyang, Han, Meijia, Teo, Kok Lay, Wu, Yonghong

“… On this basis, new gradient-based optimization algorithms are developed to solve the estimation problems …”
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An adjoint method of sensitivity analysis for residual vibrations of structures subject to impacts von Yan, Kun, Cheng, Gengdong

“… An efficient sensitivity analysis of residual vibration with respect to structural or operational parameters is indispensable for using a gradient based optimization algorithm, which reduces …”
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Structural topology optimization subject to overhang angle constraint with overhang length relaxation in additive manufacturing von Zhang, KaiQing, Cheng, GengDong, Wang, Yu

“… (TO). The minimum compliance design subject to overhang angle constraint with overhang length relaxation and horizontal minimum length control is considered …”
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