In this paper, a new network called CSGNet is introduced for automatic modulation recognition, designed to improve recognition accuracy in complex electromagnetic environments. This innovative network leverages the st...
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The turbine-based combined cycle (TBCC) engine mode transition process control problem is crucial for TBCC control. In this paper, the HO-based auto-disturbances rejection control (HO-ADRC) is proposed. The Hippopotam...
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Due to the different microstructures caused by the heat source effect,welding joints exhibit significant differences in mechanical properties compared to the base *** characterization of the constitutive characteristi...
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Due to the different microstructures caused by the heat source effect,welding joints exhibit significant differences in mechanical properties compared to the base *** characterization of the constitutive characteristics of the welded joint requires a large number of repetitive experiments,which are costly,inefficient,and have limited accuracy *** paper proposes an integrated experimental-simulation-based inverse calibration method,which establishes a calibration optimization problem based on the corresponding constitutive model and a finite element calculation model built by the distribution of hardness in the *** the global tensile force-displacement curve of the MIG-welded 6005A-T6 aluminum alloy specimen and the experimental data of local deformation with time change obtained from DIC(Digital Image Correlation),the parameters involved in the constitutive models are optimized *** method can directly obtain the constitutive characteristics of the weldment under conditions of limited experiments and insufficient ***,the adaptability of the constitutive model to the calibration method and the influence of optimization results are discussed and *** results indicate that the global force-displacement response of the non-saturated Ramberg-Osgood(R-O)model is in the best agreement with that of the experimental data,and the energy error is only 2.62%,followed by the MPL model,while the saturation-based Voce model shows the largest simulation error in terms of the presented ***,the simulation results of R-O,Voce,and MPL models in the local area are far superior to traditional fitting methods.
To enhance the detection capabilities for identifying illegal operations by oxygen factory workers and abnormal conditions of oxygen cylinders, this paper proposes an algorithm based on YOLOv7 to improve target detect...
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Benefiting from its abundance, eco-friendliness, and sustainability, crop straw is considered a promising candidate combined with graphene oxide (GO) to fabricate straw-based graphene aerogels (SGAs) for oil/water sep...
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Proper fault tolerant control is a key issue to extend the lifetime of proton exchange membrane fuel cells. This paper proposes a fault tolerant control algorithm to realize performance recovery under flooding. A wate...
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A novel elastic metamaterial is proposed with the aim of achieving lowfrequency broad bandgaps and bandgap *** band structure of the proposed metamaterial is calculated based on the Floquet-Bloch theorem,and the bound...
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A novel elastic metamaterial is proposed with the aim of achieving lowfrequency broad bandgaps and bandgap *** band structure of the proposed metamaterial is calculated based on the Floquet-Bloch theorem,and the boundary modes of each bandgap are analyzed to understand the effects of each component of the unit cell on the bandgap *** is found that the metamaterials with a low elastic modulus of ligaments can generate flexural wave bandgaps below 300 ***-frequency vibrations can be suppressed through the selective manipulation of *** dual-graded design of metamaterials that can significantly improve the bandgap width is proposed based on parametric studies.A new way that can regulate the bandgap is revealed by studying the graded elastic modulus in the *** results demonstrate that the nonlinear gradient of the elastic modulus in the substrate offers better bandgap *** on these analyses,the proposed elastic metamaterials can pave the way for multi-frequency vibration control,low-frequency bandgap broadening,and bandgap tuning.
The LLC resonant converter, as a mainstream high-efficiency DC-DC converter, suffers from a narrow voltage regulation range. By employing a hybrid modulation technique combining Pulse Frequency Modulation (PFM) and Ph...
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In order to tackle the issue of poor consistency of internal individual parameters in retired electric vehicle batteries, an SGA-FCM amended fuzzy C-means clustering method is proposed. Firstly, select sorting paramet...
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In the process of modeling and solving large-scale complex systems, issues with complex state structures and low computational efficiency are often *** partially observable discrete event systems, this paper proposes ...
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