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Yajie Han, Guangqing Xia, Bin Sun, Junjun Zhang, Liuwei Chen and Chang Lu
This paper presents the development, analysis, and performance evaluation of a novel transversal-feed Electron Cyclotron Resonance Plasma Thruster (ECRPT). The ECRPT operates based on the transversal-feed principle and incorporates optimized structural d...
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Jiangfeng Cheng, Xueqiang Liu and Feng Deng
When a Very-Low-Frequency (VLF) antenna is towed in a circular flightpath at a constant altitude, the spatial configuration of the antenna can become relatively stationary with the orbiting aircraft. Accordingly, a quasi-stationary model of the towed ant...
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Dechuan Chen, Jin Li, Jianwei Hu, Xingang Zhang and Shuai Zhang
In this work, we exploit a multi-antenna cooperative jammer to enable secure short packet communications in Internet of Things (IoT) networks. Specifically, we propose three jamming schemes to combat eavesdropping, i.e., the zero forcing beamforming (ZFB...
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Victor E. L. Gasparetto, Jackson Reid, William P. Parsons, Mostafa S. A. ElSayed, Mohamed Saad, Stephen Shieldand, Gary L. Brown and Lawrence M. Hilliard
This paper proposes a design procedure to determine the optimal configuration of multi-degrees of freedom (MDOF) multiple tuned mass dampers (MTMD) to mitigate the global dynamic aeroelastic response of aerospace structures. The computation of the aerody...
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Bohao Tang, Lihua Cai, Shuai Yang, Jiaxing Xu and Yi Yu
Concentric circular antenna arrays (CCAAs) can obtain better performance than other antenna arrays. However, high overhead and excessive sidelobes still make its application difficult. In this paper, we consider the sparse synthesis optimization of CCAAs...
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Zipeng Li, Kunde Yang, Jinglong Chen and Shunli Duan
Unlike common rotating machines, shipborne antennas always work under variable loads and suffer from extreme ocean conditions, which makes monitoring their condition and early fault identification necessary and challenging. However, extracting weak fault...
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Jian Ni, Jing Tang and Rui Wang
The beetle antenna search algorithm (BAS) converges rapidly and runs in a short time, but it is prone to yielding values corresponding to local extrema when dealing with high-dimensional problems, and its optimization result is unstable. The artificial f...
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Slawomir Koziel and Anna Pietrenko-Dabrowska
Uncertainty quantification is an important aspect of engineering design, as manufacturing tolerances may affect the characteristics of the structure. Therefore, the quantification of these effects is indispensable for an adequate assessment of design qua...
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Jinbao Chen, Jiayu Dong, Zhicheng Song, Chuanzhi Chen and Jiaqi Li
In this study, a hybrid iteration force density method (HIFDM) was proposed to ensure both tension uniformity and accuracy of an antenna mesh reflector. Based on a genetic algorithm (GA), the boundary cable tension of the antenna reflector net was optimi...
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Di Wu, Wanying Zhang, Heming Jia and Xin Leng
Chimp Optimization Algorithm (ChOA), a novel meta-heuristic algorithm, has been proposed in recent years. It divides the population into four different levels for the purpose of hunting. However, there are still some defects that lead to the algorithm fa...
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