Results 21 to 30 of about 19,894 (59)

Prediction of Deformation Response of Target Plate in Underwater Explosion Based on Deep Learning Neural Network

水下无人系统学报
The deformation of a target plate in underwater explosion is manifested as a complex nonlinear coupling interaction between the structure and the fluid under the impact of shock waves.
Zhiguo LI, Feng MA, Wei ZHU, Xiyu JIA, Yifan LI, Lei CHEN   +5 more
doaj   +1 more source

Temperature Adaptability Analysis of Closed Cycle Using CO2-Based Mixed Working Fluid for Underwater Platforms

水下无人系统学报
The supercritical CO2 Brayton cycle system is an important development direction of underwater platform power technology. However, due to the low temperature in the deep sea which is far away from the critical temperature of CO2, the cycle system has ...
Jiaqi FENG, Junpeng WANG, Zhentao CHEN, Zhengyuan LUO, Bofeng BAI   +4 more
doaj   +1 more source

Dynamic Characteristics of Explosive Damage to Typical Undersea Vehicles

水下无人系统学报
This study examined the explosive damage characteristics of large undersea vehicle structures, which are crucial for improving the survivability of undersea vehicles and have far-reaching influence on tactical application and strategic deployment in ...
Kan YAN
doaj   +1 more source

A High-Precision Calculation Method for Internal Trajectory of Underwater Weapon Launch

水下无人系统学报
A high-precision calculation method for internal trajectory was proposed for the pneumatic launch system of underwater weapons. The method combined high-precision theoretical derivation with computational fluid mechanics slip technique and used the ...
Chun YANG, Kaifu LI, Weibin CHEN, Lutian LI, Yinlong LI   +4 more
doaj   +1 more source

Research Progress in Methods to Estimate High-resolution Direction of Arrival

水下无人系统学报
With the widespread application of array signal processing, the estimation of direction of arrival(DOA) as the core problem of array signal processing has made significant progress.
Wei ZHAO, Xuan LI, Chengpeng HAO
doaj   +1 more source

KFESO-based composite anti-disturbance control for distributed cooperative path following of unmanned surface vehicles

Zhongguo Jianchuan Yanjiu
ObjectiveDue to mixed-frequency multi-source disturbances, unmanned surface vehicles (USVs) encounter challenges in accurately capturing state information and ensuring path-tracking precision.
Haoyu CHEN, Haixiang XU, Xiao WEI, Jian WANG, Wei CHEN   +4 more
doaj   +1 more source

Precise path following of underactuated ship based on neurodynamic optimization and model predictive control

Zhongguo Jianchuan Yanjiu
ObjectiveThe traditional model predictive control method employs a repeated online optimization approach, resulting in a high computational burden for underactuated ship path-following predictive controller.
Junqiao SHI, Cheng LIU, Weili GUO, Ting SUN, Xuegang WANG, Feng XU   +5 more
doaj   +1 more source

Data-driven ship trajectory tracking control method

Zhongguo Jianchuan Yanjiu
ObjectiveAiming at the problems of unknown ship model parameters and external disturbance and servo constraints, this paper proposes a method for the data-driven online identification of ship parameters and iterative analytical calculation of the optimal
Yong XIONG, Siwen ZHOU, XianFei WANG, Zhiyuan LYU   +3 more
doaj   +1 more source

Taxonomic and functional analyses of intact microbial communities thriving in extreme, astrobiology-relevant, anoxic sites. [PDF]

Microbiome, 2021
Bashir AK, Wink L, Duller S, Schwendner P, Cockell C, Rettberg P, Mahnert A, Beblo-Vranesevic K, Bohmeier M, Rabbow E, Gaboyer F, Westall F, Walter N, Cabezas P, Garcia-Descalzo L, Gomez F, Malki M, Amils R, Ehrenfreund P, Monaghan E, Vannier P, Marteinsson V, Erlacher A, Tanski G, Strauss J, Bashir M, Riedo A, Moissl-Eichinger C.   +27 more
europepmc   +1 more source

Adaptive surge control of variable-mass unmanned surface vehicle based on super-twisting sliding mode observation

Zhongguo Jianchuan Yanjiu
ObjectiveThis paper presents a novel approach to the precise control of variable mass unmanned surface vehicles (USVs) during payload deployment tasks, addressing the control challenges caused by unpredictable variations in both mass and draught.
Zhaokun YAN, Guanyu YANG, Hongdong WANG
doaj   +1 more source