Zobrazeno 1 - 10
of 102
pro vyhledávání: '"Linfang Qian"'
Publikováno v:
Defence Technology, Vol 33, Iss , Pp 125-133 (2024)
In this paper, a dynamic modeling method of motor driven electromechanical system is presented, and the uncertainty quantification of mechanism motion is investigated based on this method. The main contribution is to propose a novel mechanism-motor c
Externí odkaz:
https://doaj.org/article/4be52766079b47afb243a5f9e8cceba7
Publikováno v:
Defence Technology, Vol 32, Iss , Pp 196-208 (2024)
Artificial intelligence technology is introduced into the simulation of muzzle flow field to improve its simulation efficiency in this paper. A data-physical fusion driven framework is proposed. First, the known flow field data is used to initialize
Externí odkaz:
https://doaj.org/article/3f89d44db45545f3a95da00257e7ce02
Publikováno v:
Defence Technology, Vol 32, Iss , Pp 209-221 (2024)
This paper proposed an efficient research method for high-dimensional uncertainty quantification of projectile motion in the barrel of a truck-mounted howitzer. Firstly, the dynamic model of projectile motion is established considering the flexible d
Externí odkaz:
https://doaj.org/article/ed0e1c24014a47f28919d8d17d351625
Publikováno v:
Applied Sciences, Vol 14, Iss 13, p 5537 (2024)
Armor composite structures have attracted interest in structural health monitoring (SHM) for their applications in damage localization. The signal propagation and the frequency dispersion features of the Lamb wave signal on thick armor composite stru
Externí odkaz:
https://doaj.org/article/bbb68a945618417492bb01bdee81249a
Publikováno v:
Case Studies in Thermal Engineering, Vol 50, Iss , Pp 103467- (2023)
On the basis of the conjugate gradient method, an inversion model of the transient convective heat transfer coefficient between the bore surface and the gunpowder gas is presented. In this study, the measured temperature at a certain depth from the b
Externí odkaz:
https://doaj.org/article/09dc61d2bda249b59c49eb51ae478cad
Publikováno v:
Defence Technology, Vol 18, Iss 12, Pp 2125-2140 (2022)
In this paper, based on the topological description method, the kinematic and dynamic equations of the projectile flight and projectile-artillery coupling system during the whole process of firing are constructed. The factors that can affect the proj
Externí odkaz:
https://doaj.org/article/397084736a994165ada7502fbf0d43b0
Publikováno v:
Sensors, Vol 24, Iss 3, p 847 (2024)
With the development of modern military technology, electrical drive technology has become a power source for modern artillery. In fault monitoring of a driving motor mounted on a piece of artillery, various sensors are susceptible to interference fr
Externí odkaz:
https://doaj.org/article/a0acecd5f8844e9d89cf67d448d70c33
Publikováno v:
Sensors, Vol 22, Iss 24, p 9973 (2022)
Intelligent mechanical systems are a focused area nowadays. One of the requirements of intelligent mechanical systems is to achieve intelligent fault diagnosis through the real-time acquisition and analysis of data from various sensors installed on m
Externí odkaz:
https://doaj.org/article/cf8acd4d0e6947389354786e5e92edcd
Publikováno v:
Applied Sciences, Vol 12, Iss 15, p 7366 (2022)
There are various types of autonomous unmanned systems, covering different spaces of sea, land, and air, and they are comprehensively going deep into multiple fields of national security and social life. Due to the development of technology, the scal
Externí odkaz:
https://doaj.org/article/e26fda799ffe40ddb71c3f4bef927f9e
Publikováno v:
Advances in Mathematical Physics, Vol 2020 (2020)
The present work investigates the problem of a cylindrical crack in a functionally graded cylinder under thermal impact by using the non-Fourier heat conduction model. The theoretical derivation is performed by methods of Fourier integral transform,
Externí odkaz:
https://doaj.org/article/090bdcbe48684abb936ff56d8fab0096