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A Weight-Generating Approach of a Deep Neural Network for the Parameter Identification of Dynamic Systems

open access: yesInternational Journal of Aerospace Engineering, 2023
The general learning process of deep learning is extremely time-consuming. Unlike the traditional learning process, a weight-generating approach to quickly generate the weight vectors of a deep neural network model is proposed, which can be used for ...
Weimeng Chu   +4 more
doaj   +1 more source

Additively manufacturing-enabled hierarchical NiTi-based shape memory alloys with high strength and toughness

open access: yesVirtual and Physical Prototyping, 2021
A hierarchical microstructure was obtained, including the unique interlaced dual-phase structure, the solidified molten pool, the coarse columnar B2 grains and fine equiaxed B19’ grains, and a great many nanoparticles, during laser powder bed fusion ...
Dongdong Gu   +6 more
doaj   +1 more source

Dimensional effect and mechanical performance of node-strengthened hybrid lattice structure fabricated by laser powder bed fusion

open access: yesVirtual and Physical Prototyping, 2023
Node-strengthened hybrid structures with lower relative density inspired by solid solution strengthening mechanism, namely the edge center interstitial lattice (ECIL) structures and vertex node substitutional lattice (VNSL) structures were designed and ...
He Liu   +7 more
doaj   +1 more source

Robust Data-Driven Fault Detection: An Application to Aircraft Air Data Sensors

open access: yesInternational Journal of Aerospace Engineering, 2022
Fault detection (FD) is important for health monitoring and safe operation of dynamical systems. Previous studies use model-based approaches which are sensitive to system specifics, attenuating the robustness.
Yunmei Zhao   +3 more
doaj   +1 more source

A LEO Satellite Handover Strategy Based on Graph and Multiobjective Multiagent Path Finding

open access: yesInternational Journal of Aerospace Engineering, 2023
Low earth orbit (LEO) satellite network can provide services to users anywhere on the earth. However, the high-speed mobility of satellites leads to a dynamic environment, which brings challenges for handover and network performance optimization ...
Zhiyun Jiang   +3 more
doaj   +1 more source

Process-structure multi-objective inverse optimisation for additive manufacturing of lattice structures using a physics-enhanced data-driven method

open access: yesVirtual and Physical Prototyping, 2023
Additive manufacturing (AM) has become a practical solution for fabricating lightweight and high-strength metallic lattice structures. The inverse optimisation of process-structure parameters to achieve high performance and minimised trial-and-error ...
Keyu Shi   +4 more
doaj   +1 more source

Jiles-Atherton-Based Hysteresis Identification of Joint Resistant Torque in Active Spacesuit Using SA-PSO Algorithm

open access: yesInternational Journal of Aerospace Engineering, 2022
To eliminate the influence of spacesuits’ joint resistant torque on the operation of astronauts, an active spacesuit scheme based on the joint-assisted exoskeleton technology is proposed.
Zhao-yang Li   +3 more
doaj   +1 more source

A Feature-Map-Based Method for Explaining the Performance Degradation of Ship Detection Networks

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023
The unknowability of the inner workings limits the magnitude of performance improvement of ship target detection networks in synthetic aperture radar (SAR) images under Gaussian noise.
Peng Jia   +5 more
doaj   +1 more source

Printing ionic polymer metal composite actuators by fused deposition modeling technology

open access: yesInternational Journal of Smart and Nano Materials, 2021
In this work, we printed a Nafion precursor membrane by fused deposition modeling (FDM) rapid prototyping technology and further fabricated IPMCs by electroless plating.
Guoxiao Yin   +5 more
doaj   +1 more source

A case study of curriculum development related to the space environment and emerging space weather markets [PDF]

open access: yesAdvances in Geosciences, 2005
Space weather is a new subject which has not yet become widely understood or appreciated. The University offers the unique opportunity to develop knowledge and understanding about space weather that can then be applied as graduates enter the mainstream ...
Y. Tulunay, E. Tulunay, E. Tulunay
doaj  

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