Zobrazeno 1 - 10
of 81
pro vyhledávání: '"Qinxiang Xia"'
Publikováno v:
Journal of Magnesium and Alloys, Vol 12, Iss 8, Pp 3229-3244 (2024)
Hot flow forming (HFF) is a promising forming technology to manufacture thin-walled cylindrical part with longitudinal inner ribs (CPLIRs) made of magnesium (Mg) alloys, which has wide applications in the aerospace field. However, due to the thermo-m
Externí odkaz:
https://doaj.org/article/5124b0434b41443a91f0bd75827ec72f
Autor:
Jinchuan Long, Lei Deng, Junsong Jin, Mao Zhang, Xuefeng Tang, Pan Gong, Xinyun Wang, Gangfeng Xiao, Qinxiang Xia
Publikováno v:
Journal of Magnesium and Alloys, Vol 12, Iss 7, Pp 3003-3023 (2024)
Hot deformation is a commonly employed processing technique to enhance the ductility and workability of Mg alloy. However, the hot deformation of Mg alloy is highly sensitive to factors such as temperature, strain rate, and strain, leading to complex
Externí odkaz:
https://doaj.org/article/69a0dd78d2a84c599af9f20c058652a0
Publikováno v:
Sensors, Vol 23, Iss 13, p 5974 (2023)
This study investigated the trajectory-planning problem of a six-axis robotic arm based on deep reinforcement learning. Taking into account several characteristics of robot motion, a multi-objective optimization approach is proposed, which was based
Externí odkaz:
https://doaj.org/article/72932b7b7b2844a9986e2ce91cb60bcf
Publikováno v:
Applied Sciences, Vol 12, Iss 14, p 6874 (2022)
In this paper, a novel path-following and obstacle avoidance control method is given for nonholonomic wheeled mobile robots (NWMRs), based on deep reinforcement learning. The model for path-following is investigated first, and then applied to the pro
Externí odkaz:
https://doaj.org/article/7f4ddf8509d041bb843b481cd82eb021
Publikováno v:
Advances in Mechanical Engineering, Vol 12 (2020)
The strengthening effect and uniformity of residual stress and strain of 7075-T6 aviation aluminum after laser shock peening were investigated. The finite element simulation model of laser shot peening on 7075-T6 aviation aluminum alloy was establish
Externí odkaz:
https://doaj.org/article/9d1714a818914c03a5e1affadaf4ade8
Publikováno v:
Shock and Vibration, Vol 2020 (2020)
With the aid of multidomain modeling method, the vibration of a high-speed punching press was modeled and predicted, and the influence of the installation of foundation, as well as the shape and size parameters of the foundation on the vibration of t
Externí odkaz:
https://doaj.org/article/3fa7b494a54b4e06b5960cf7e6f92544
Publikováno v:
Shock and Vibration, Vol 2019 (2019)
By the multidomain modelling method, the vibration of a high-speed punching press was modelled and simulated, and the influence of the hydraulic system on the vibration of the punching press and the protection efficiency of the punching press under t
Externí odkaz:
https://doaj.org/article/a7f0ec156eb3409d8f443aaad02d423b
Publikováno v:
Shock and Vibration, Vol 2017 (2017)
A three-degree-of-freedom mathematical vibration model of a high-speed punching press was developed in order to explore the vibration modes of the punching press. A multidomain model of the punching press was established to predict the kinematic stat
Externí odkaz:
https://doaj.org/article/f9f539b55158445a99c27377c9f32b51
Publikováno v:
Materials, Vol 11, Iss 10, p 1891 (2018)
Two different methods, power spinning and annealing (PSA), quenching and power spinning followed by annealing (QPSA), for manufacturing the cylindrical parts with ultrafine-grained (UFG) structure were reviewed, the dislocation density and microstruc
Externí odkaz:
https://doaj.org/article/6d7111b1728747d8baf2d3a980ca49b8
Publikováno v:
MATEC Web of Conferences, Vol 167, p 03010 (2018)
A new method for measuring the dimensional accuracy of the cylindrical spun parts based on machine vision was proposed to overcome the artificial deviation and low efficiency of manual measurement. The image acquisition system of machine vision was b
Externí odkaz:
https://doaj.org/article/6e0141ce198647d796c749eab565def4