Zobrazeno 1 - 10
of 1 299
pro vyhledávání: '"Pan Guang"'
Publikováno v:
Xibei Gongye Daxue Xuebao, Vol 41, Iss 5, Pp 871-877 (2023)
A model prediction controller (MPC) based on radial basis function (RBF) neural network is designed to counter the model uncertainty and multiple constraints of the autonomous underwater vehicle (AUV). On this basis of path following control with MPC
Externí odkaz:
https://doaj.org/article/43140d56ba264d9c89d44ac7d4d5b3c4
Publikováno v:
Xibei Gongye Daxue Xuebao, Vol 41, Iss 3, Pp 595-600 (2023)
To investigate the effect of group gliding formation on the hydrodynamic performance of manta rays, numerical simulations were used to investigate the drag, the lift and pressure distribution of multiple manta rays in tandem, triangular and diamond-s
Externí odkaz:
https://doaj.org/article/3591d6e015a94b44a7d67027e7611785
Publikováno v:
Xibei Gongye Daxue Xuebao, Vol 41, Iss 3, Pp 601-611 (2023)
A pre-swirl pumpjet propeller(PJP) is widely used in the new generation of quiet submarines all over the world, although the experimental study of its hydrodynamic performances is still rare. This paper carries out experimental tests of the pre-swirl
Externí odkaz:
https://doaj.org/article/9e422d17e2d64fe09ef6305f02f4fabf
Publikováno v:
Xibei Gongye Daxue Xuebao, Vol 41, Iss 2, Pp 319-328 (2023)
Flow-induced noise hybrid prediction method based on sound wave boundary condition is an effective numerical method to deal with a flow-induced noise problems of complex configuration. This method can not only finely simulate the sound source, but al
Externí odkaz:
https://doaj.org/article/55db57b447f649059cf866da487601f4
Publikováno v:
Jichu yixue yu linchuang, Vol 42, Iss 8, Pp 1263-1268 (2022)
Objective To share our experience of percutaneous or transthoracic closure of atrial septal defect (ASD) and ventricular septal defect (VSD) supported by echocardiography guidance. Methods From December 2010 to September 2019, 54 patients of congenit
Externí odkaz:
https://doaj.org/article/dde3ad8ab6b44d6999bdf3564a7066fb
Publikováno v:
Xibei Gongye Daxue Xuebao, Vol 40, Iss 3, Pp 576-583 (2022)
Underwater Bionic Robot swarm has the advantages of high redundancy, flexible mobility and wide range of task execution, which can be applied to underwater environment monitoring, underwater target monitoring, resource exploration and other fields. F
Externí odkaz:
https://doaj.org/article/bd2d6ba995e646458711f37925fb9e60
Publikováno v:
Xibei Gongye Daxue Xuebao, Vol 40, Iss 3, Pp 584-591 (2022)
In order to obtain the influence of water entry angle and speed on the cavitation and impact load characteristics of supercavitating vehicle, a high-speed water entry numerical model of supercavitating vehicle based on VOF model is established, and t
Externí odkaz:
https://doaj.org/article/0522479676914ee5889f219e18e679ba
Publikováno v:
Xibei Gongye Daxue Xuebao, Vol 40, Iss 2, Pp 281-287 (2022)
In order to explore the mechanism of bionic propulsion and bionic robots, to make up for the limitations of traditional propulsion with a uniform incoming flow, numerical methods are used to couple fluid dynamics and flapping foil motions, and a flap
Externí odkaz:
https://doaj.org/article/5b89e107c9e649e8b3b041dbf4d9703a
Publikováno v:
Xibei Gongye Daxue Xuebao, Vol 39, Iss 6, Pp 1249-1258 (2021)
Different nose shape can cause a significant influence on the water entry trajectory and cavity. In order to study the evolution characteristics of cavity and trajectory of asymmetric nose in the process of water entry, based on the high-speed photog
Externí odkaz:
https://doaj.org/article/dc56f3c170934351b149e910835e4141
Publikováno v:
Xibei Gongye Daxue Xuebao, Vol 39, Iss 6, Pp 1266-1273 (2021)
In order to solve the underwater noise pollution and improve the acoustic stealth performance of underwater vehicles, NACA0020 was bionically modified according to the structure of the leading edge tubercles of humpback fin. The flow field and noise
Externí odkaz:
https://doaj.org/article/78b43d985cdd4cab8b3cde770eb95abd