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Lianfeng Yang, Liqin Liu, Chao Luo, Yongjun Yu and Yiqun Chen
The aim of this paper is to investigate the vibration suppression effect of a nonlinear energy sink (NES) on the wind-vortex-induced vibration of deep-water jacket pipes. Based on nonlinear dynamical theories, the coupled dynamic equation of a deep-water...
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Zhangyou Peng and Jingang Liu
In order to reduce the sea clutter interference in the detection of sea surface targets, we propose a bistatic sea clutter suppression method based on compressed sensing optimization in this paper. The proposed method mitigates the interference effect by...
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Feng Gao, Yougang Tang, Chuanqi Hu and Xiaolei Xie
Conventional ship mooring in ports has many shortcomings such as a high safety risk, low efficiency and high labor intensity. In order to explore and develop the theory and key technologies of intelligent automatic mooring systems, this paper takes an in...
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Xueyang Zeng, Gang Chen, Huabo Shi, Sijia Wang and Peng Shi
Aiming at the problem of ultra-low-frequency oscillation (ULFO) in power systems, with an oscillation frequency lower than 0.1 Hz, an oscillation suppression control method is proposed. Firstly, the mathematical modeling of the system is carried out, and...
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Junfeng Liu, Yujun Hu, Ji Yao and Qing Zhang
Tuned mass dampers (TMDs) are widely used as vibration damping devices in engineering practice. However, during use, TMDs inevitably exhibit some nonlinear characteristics that may negatively impact engineering applications. To improve the practical perf...
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Huapeng Tang, Danyang Qin, Jiaqiang Yang, Haoze Bie, Mengying Yan, Gengxin Zhang and Lin Ma
Frame buildings as important nodes of urban space. The include high-speed railway stations, airports, residences, and office buildings, which carry various activities and functions. Due to illumination irrationality and mutual occlusion between complex o...
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Jinfu Liu, Mingliang Bai, Na Jiang, Ran Cheng, Xianling Li, Yifang Wang and Daren Yu
Multi-classifiers are widely applied in many practical problems. But the features that can significantly discriminate a certain class from others are often deleted in the feature selection process of multi-classifiers, which seriously decreases the gener...
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Álvaro Muñoz and Pablo García-Fogeda
In this paper, a unified method for the computation of the unsteady aerodynamic forces in the Laplace domain for a wing section in subsonic, sonic and supersonic potential flows is presented. The subsonic solution is a new development based on the pressu...
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Álvaro Muñoz and Pablo García-Fogeda
This paper compares various procedures for determining the optimal control law for a wing section in compressible flow. The flow regime includes subsonic, sonic and supersonic flows. For the evolution of the system in the Laplace plane, the present metho...
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Feng Guo, Ming Liu, Guozhong He, Junhui Zhou, Jianfeng Zhu and Yancheng You
An aircraft/engine integrated optimal control method is proposed for turbine-based combined cycle (TBCC) engines based on the Gauss pseudospectral method. The optimal flight trajectory and TBCC control law are obtained for a TBCC-powered aircraft, and th...
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Shengying Yang, Huibin Qin, Xiaolin Liang and Thomas Aaron Gulliver
Life sign detection is important in many applications, such as locating disaster victims. This can be difficult in low signal to noise ratio (SNR) and through-wall conditions. This paper considers life sign detection using an impulse ultra-wideband (UWB)...
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Yu Ning, Yong-Ping Jin, You-Duo Peng and Jian Yan
Efficient underwater visual environment perception is the key to realizing the autonomous operation of underwater robots. Because of the complex and diverse underwater environment, the underwater images not only have different degrees of color cast but a...
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Gang Jin, Wenshuo Li, Jianxin Han, Zhanjie Li, Gaofeng Hu and Guangxing Sun
Predicting and avoiding the onset of milling chatter are desirable to reduce its harm to machine tools, workpieces, and cutters. This paper presents an updated method to complete the stability prediction for the milling process with multiple and distribu...
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Xiwen Deng, Zhongliang Deng, Jingrong Liu, Zhenke Ding and Zhichao Zhang
We propose a communication positioning integrated signal (CPIS) to achieve sub-meter positioning of metro trains. However, the electromagnetic environment of metro trains is complex, and the interference of radio frequency signals will reduce the accurac...
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Chaoyue Li, Huan Yang, Sha Liu, Shiyu Feng, Lei Xu and Zhiling Wang
In this study, a ground-based washing inerting (GBWI) method was proposed, and the application of GBWI in the field of fire prevention and explosion suppression of unmanned aerial vehicle (UAV) fuel tanks was studied using a volume of fluid (VOF) two-pha...
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Yue Wang, Yiming Fang, Liang Li, Dingguo Zhang, Wei-Hsin Liao and Jianshi Fang
This paper uses high-order approximate coupling (HOAC) dynamics equations for the hub?beam system with segmented active constrained layer damping treatment (SACLD). To improve the damping characteristics of traditional active constrained layer damping (A...
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Tao Jiang, Yize Sun, Hai Huang, Hongde Qin, Xi Chen, Lingyu Li, Zongyu Zhang and Xinyue Han
Autonomous underwater manipulation is very important for the robotic and intelligence operations of oceanic engineering. However, a small target often involves limited features and results in inaccurate visual matching. In order to improve visual measure...
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Kun Wei, Shiliang Fang and Jun Tao
Near-field interference suppression for a towed linear array (TLA) is investigated in this paper. The existing eigencomponent association (ECA) scheme and multiple signal classification interference suppression (MUSIC-IS) scheme require the prior informa...
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Tong Zhang, Chunjiang Liu, Jiaqi Li, Minghui Pang and Mingang Wang
In view of traditional point-line feature visual inertial simultaneous localization and mapping (SLAM) system, which has weak performance in accuracy so that it cannot be processed in real time under the condition of weak indoor texture and light and sha...
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Zhuoshi Li, Yuanyuan Chen, Jiasong Sun, Yanbo Jin, Qian Shen, Peng Gao, Qian Chen and Chao Zuo
Slightly off-axis digital holographic microscopy (DHM) is the extension of digital holography imaging technology toward high-throughput modern optical imaging technology. However, it is difficult for the method based on the conventional linear Fourier do...
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