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The Adjoint Variable Method for Computational Electromagnetics
Mathematics, 2022 Optimization using finite element analysis and the adjoint variable method to solve engineering problems appears in various application areas. However, to the best of the authors’ knowledge, there is a lack of detailed explanation on the implementation ...
Reda El Bechari +2 more
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Inverse Design Tool for Ion Optical Devices using the Adjoint Variable Method. [PDF]
Sci Rep, 2019 AbstractWe present a computer-aided design tool for ion optical devices using the adjoint variable method. Numerical methods have been essential for the development of ion optical devices such as electron microscopes and mass spectrometers. Yet, the detailed computational analysis and optimization of ion optical devices is still onerous, since the ...
Neustock LT +3 more
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Damage Detection of Bridges Using Vibration Data by Adjoint Variable Method [PDF]
Shock and Vibration, 2014 This research entails a theoretical and numerical study on a new damage detection method for bridges, using response sensitivity in time domain. This method, referred to as “adjoint variable method,” is a finite element model updating sensitivity based ...
Akbar Mirzaee +2 more
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Adjoint variable method for transient nonlinear electroquasistatic problems [PDF]
Electrical Engineering, 2023 AbstractMany optimization problems in electrical engineering consider a large number of design parameters. A sensitivity analysis identifies the design parameters with the strongest influence on the problem of interest. This paper introduces the adjoint variable method as an efficient approach to study sensitivities of nonlinear electroquasistatic ...
M. Greta Ruppert +3 more
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Design of Planar and Conformal, Passive, Lossless Metasurfaces That Beamform
IEEE Journal of Microwaves, 2022 A general technique for synthesizing both planar and conformal beamforming metasurfaces is presented that utilizes full-wave modeling techniques and rapid optimization methods.
Jordan Budhu +2 more
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Energies, 2022 The adjoint method is a very promising gradient-based optimisation framework for computational fluid dynamics (CFD), because of its independence of the computation cost from the number of design variables.
Mirza Popovac
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A multiphase CMAQ version 5.0 adjoint [PDF]
Geoscientific Model Development, 2020 We present the development of a multiphase adjoint for the Community Multiscale Air Quality (CMAQ) model, a widely used chemical transport model. The adjoint model provides location- and time-specific gradients that can be used in various applications ...
S. Zhao +19 more
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Atmosphere, 2022 The joint state and parameter estimation problem is an important issue in data assimilation. An adjoint free data assimilation method, namely analytical four-dimensional ensemble variational (A-4DEnVar) data assimilation method, was developed to provide ...
Kangzhuang Liang +4 more
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A robust optimization based on adjoint variable method [PDF]
COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, 2010 PurposeThe purpose of this paper is to present a new method to obtain robust solutions to electromagnetic optimization problems, solved with evolutional algorithms, which are insensitive to changes in design parameters such as spatial size, positioning and material constant.Design/methodology/approachAdjoint variable method is employed to evaluate the ...
Maruyama, Takayuki +2 more
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Eigenvalue sensitivity analysis based on the transfer matrix method
International Journal of Mechanical System Dynamics, 2021 For linear mechanical systems, the transfer matrix method is one of the most efficient modeling and analysis methods. However, in contrast to classical modeling strategies, the final eigenvalue problem is based on a matrix which is a highly nonlinear ...
Dieter Bestle
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