Search Results - "Adjoint variable method"

Global Optimization of Dielectric Metasurfaces Using a Physics-Driven Neural Network by Jiang, Jiaqi, Fan, Jonathan A

“…We present a global optimizer, based on a conditional generative neural network, which can output ensembles of highly efficient topology-optimized metasurfaces…”
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Topology optimization of non-linear electromagnetic actuator based on Reluctance Network Analysis by Yin, Ming, Naidjate, Mohammed, Bracikowski, Nicolas, Pierquin, Antoine, Trichet, Didier

“…Topology Optimization (TO) enables unrestricted exploration within a design domain and is typically based on a spatial discretization that is also used as the…”
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Design of Planar and Conformal, Passive, Lossless Metasurfaces That Beamform by Budhu, Jordan, Szymanski, Luke, Grbic, Anthony

“…A general technique for synthesizing both planar and conformal beamforming metasurfaces is presented that utilizes full-wave modeling techniques and rapid…”
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Acoustic topology optimization of sound absorbing materials directly from subdivision surfaces with isogeometric boundary element methods by Chen, Leilei, Lu, Chuang, Lian, Haojie, Liu, Zhaowei, Zhao, Wenchang, Li, Shengze, Chen, Haibo, Bordas, Stéphane P.A.

“…This paper presents an acoustic topology optimization approach using isogeometric boundary element methods based on subdivision surfaces to optimize the…”
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Adjoint method in machine learning: A pathway to efficient inverse design of photonic devices by Kang, Chanik, Seo, Dongjin, Boriskina, Svetlana V., Chung, Haejun

“…Innovative machine learning techniques have facilitated the inverse design of photonic structures for numerous practical applications. Nevertheless, the…”
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Design optimization of dynamic flexible multibody systems using the discrete adjoint variable method by Ebrahimi, Mehran, Butscher, Adrian, Cheong, Hyunmin, Iorio, Francesco

“…•The discrete adjoint variable method results in a system of linear algebraic equations for adjoint variables.•The discrete adjoint variable method computes…”
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A semi-analytical and boundary-type meshless method with adjoint variable formulation for acoustic design sensitivity analysis by Cheng, Suifu, Wang, Fajie, Wu, Guozheng, Zhang, Chengxin

“…This paper proposes a novel semi-analytical method for the two- and three-dimensional acoustic design sensitivity analysis by combining the Burton–Miller-type…”
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Dynamic topology optimization of continuum structures considering moving mass excitations by Bai, Jiantao, Sun, Pengfei, Wang, Ruishu, Zuo, Wenjie

“…•A novel dynamic topology optimization method is proposed to design continuum structures excited by moving mass.•The finite element formulation is established…”
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An analytical approach to the sensitivity analysis of semi-recursive ODE formulations for multibody dynamics by López Varela, Álvaro, Dopico Dopico, Daniel, Luaces Fernández, Alberto

“…Sensitivity analysis is an extremely powerful tool in many applications such as in the optimization of the dynamics of multibody systems with gradient-based…”
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Topology optimization using M-SIMP approach to design electromagnetic structures by SANOGO, Satafa, MESSINE, Frédéric, HENAUX, Carole

“…•Optimal Design problems of Electromagnetic structures are inverse problems.•M-SIMP approach is suitable for optimal design of materials and sources.•ATOP,…”
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Topology Optimization of Chip Inductor Using Density Method by Yin, Shuli, Igarashi, Hajime, Clenet, Stephane

“…This paper proposes a novel methodology of the topology optimization method considering eddy current effects. The method is applied on chip inductors modelled…”
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Simulator-based training of generative neural networks for the inverse design of metasurfaces by Jiang, Jiaqi, Fan, Jonathan A.

“…Metasurfaces are subwavelength-structured artificial media that can shape and localize electromagnetic waves in unique ways. The inverse design of these…”
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Design Optimization of Synchronous Reluctance Motor for Reducing Iron Loss and Improving Torque Characteristics Using Topology Optimization Based on the Level-Set Method by Yamashita, Yuki, Okamoto, Yoshifumi

“…Because the synchronous reluctance motor (SynRM) does not require a rare-metal-based permanent magnet (PM), the demand for SynRMs is progressively increasing…”
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Framework of acoustic analysis and shape optimization for three-dimensional doubly periodic multilayered structures by Jiang, Fuhang, Takahashi, Toru, Zheng, Changjun, Matsumoto, Toshiro, Chen, Haibo

“…In this research, a framework of acoustic analysis and shape optimization, based on isogeometric boundary element method (IGA-BEM), is proposed for…”
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Semi-analytical sensitivity analysis approach for fully coupled optimization of flexible multibody systems by Zhang, Mengru, Peng, Haijun, Song, Ningning

“…•The proposed method simplifies the sensitivity calculation of fully coupled optimization method.•The proposed method can handle complex design variables more…”
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Topology optimization of exterior acoustic‐structure interaction systems using the coupled FEM‐BEM method by Zhao, Wenchang, Chen, Leilei, Chen, Haibo, Marburg, Steffen

“…Summary This paper presents an efficient topology optimization procedure for exterior acoustic‐structure interaction problems, in which the coupled systems are…”
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A Shape Optimisation with the Isogeometric Boundary Element Method and Adjoint Variable Method for the Three-Dimensional Helmholtz Equation by Takahashi, Toru, Sato, Daisuke, Isakari, Hiroshi, Matsumoto, Toshiro

“…This paper presents a shape optimisation system to design the shape of an acoustically-hard object in the three-dimensional open space. The boundary element…”
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Topology optimization for dynamic flexible multibody systems using the Flexible Natural Coordinates Formulation by Vanpaemel, Simon, Asrih, Karim, Vermaut, Martijn, Naets, Frank

“…This work proposes a fully-coupled topology optimization methodology to optimize the structural components of flexible multibody systems. It employs the…”
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An enhanced aggregation method for topology optimization with local stress constraints by Luo, Yangjun, Wang, Michael Yu, Kang, Zhan

“…By introducing a new reduction parameter into the Kreisselmeier–Steihauser (K–S) function, this paper presents a general K–S formulation providing an…”
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Topology Optimization of Optical Waveguide Devices Based on Beam Propagation Method With Sensitivity Analysis by Iguchi, Akito, Tsuji, Yasuhide, Yasui, Takashi, Hirayama, Koichi

“…We present a gradient-based topology optimization method of optical waveguide devices using the beam propagation method (BPM). Efficient topology optimization…”
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