Shape and topology optimization of conformal thermal control structures on free-form surfaces: A dimension reduction level set method (DR-LSM)

Xu, Xiaoqiang; Gu, Xianfeng; Chen, Shikui

doi:10.1016/j.cma.2022.115183

Computer Methods in Applied Mechanics and Engineering

2022

DOI: 10.1016/j.cma.2022.115183

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Shape and topology optimization of conformal thermal control structures on free-form surfaces: A dimension reduction level set method (DR-LSM)

Xiaoqiang Xu

Xianfeng Gu

Shikui Chen

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Cited by 14 publications

References 64 publications

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Decoding Silent Speech Cues From Muscular Biopotential Signals for Efficient Human‐Robot Collaborations

Dong,

Tian,

Chen

et al. 2024

Adv Materials Technologies

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Silent speech interfaces offer an alternative and efficient communication modality for individuals with voice disorders and when the vocalized speech communication is compromised by noisy environments. Despite the recent progress in developing silent speech interfaces, these systems face several challenges that prevent their wide acceptance, such as bulkiness, obtrusiveness, and immobility. Herein, the material optimization, structural design, deep learning algorithm, and system integration of mechanically and visually unobtrusive silent speech interfaces are presented that can realize both speaker identification and speech content identification. Conformal, transparent, and self‐adhesive electromyography electrode arrays are designed for capturing speech‐relevant muscle activities. Temporal convolutional networks are employed for recognizing speakers and converting sensing signals into spoken content. The resulting silent speech interfaces achieve a 97.5% speaker classification accuracy and 91.5% keyword classification accuracy using four electrodes. The speech interface is further integrated with an optical hand‐tracking system and a robotic manipulator for human‐robot collaboration in both assembly and disassembly processes. The integrated system achieves the control of the robot manipulator by silent speech and facilitates the hand‐over process by hand motion trajectory detection. The developed framework enables natural robot control in noisy environments and lays the ground for collaborative human‐robot tasks involving multiple human operators.

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Decoding Silent Speech Cues From Muscular Biopotential Signals for Efficient Human‐Robot Collaborations

Dong,

Tian,

Chen

et al. 2024

Adv Materials Technologies

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Discrete level set method enhanced by conformal mapping: an efficient approach for topology optimization of piezoelectric energy harvesters

Ding,

Zeng,

Xing

et al. 2024

Struct Multidisc Optim

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Non-parametric optimization for lightweight and high heat conductive structures under convection using metaheuristic structure binary-distribution method

Ali

Shimoda

Benaissa

et al. 2023

Applied Thermal Engineering

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Shape and topology optimization of conformal thermal control structures on free-form surfaces: A dimension reduction level set method (DR-LSM)

Cited by 14 publications

References 64 publications

Decoding Silent Speech Cues From Muscular Biopotential Signals for Efficient Human‐Robot Collaborations

Decoding Silent Speech Cues From Muscular Biopotential Signals for Efficient Human‐Robot Collaborations

Discrete level set method enhanced by conformal mapping: an efficient approach for topology optimization of piezoelectric energy harvesters

Non-parametric optimization for lightweight and high heat conductive structures under convection using metaheuristic structure binary-distribution method

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