Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Chun Li Lei"'
Publikováno v:
DSIT
In order to make full use of multiple types of data and improve the accuracy of the recommendation algorithm, a scoring prediction model combining multi-source heterogeneous data such as product attributes, user reviews and friend relationships is pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a3702e0e8d9cd4ca2f55a51db59e9472
https://doi.org/10.1145/3478905.3478916
https://doi.org/10.1145/3478905.3478916
Publikováno v:
Applied Mechanics and Materials. :1707-1710
In order to control effectively the temperature of the motorized spindle, based on thermodynamics, heat transfer theory and fluid dynamics control theory, the model of motorized spindle with cooling system is established and simulated. Based on the i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::83e5f09858fe6c2c29c73ecc808283d4
https://doi.org/10.4028/www.scientific.net/amm.716-717.1707
https://doi.org/10.4028/www.scientific.net/amm.716-717.1707
Publikováno v:
Advanced Materials Research. :1677-1680
In order to improve the manufacturing accuracy of NC machine tool, it is crucial to reducing the temperature rise of high-speed motorized spindle. The cooling effect and temperature distribution of water-cooling system are simulated and analyzed base
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cb05da7b836e31416d44f18e3ed01c99
https://doi.org/10.4028/www.scientific.net/amr.945-949.1677
https://doi.org/10.4028/www.scientific.net/amr.945-949.1677
Publikováno v:
Applied Mechanics and Materials. :1024-1027
Study the linear and nonlinear stiffness dynamic characteristics of ball screw in feed system. According to the structure and the stiffness of ball screw, considering the influence of damping force, elastic force, friction force, driving force and lo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::73f06234cf6d3b0c07538d0d417221bc
https://doi.org/10.4028/www.scientific.net/amm.496-500.1024
https://doi.org/10.4028/www.scientific.net/amm.496-500.1024
Publikováno v:
Applied Mechanics and Materials. :131-134
Heat generation and deformation of bearing are key factors that influence the rigidity and machining accuracy of the high-speed precision spindle system. Based on heat transfer and thermodynamics, the finite element model of angular contact ball bear
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cfc428476feecf9e5577aef1df13709d
https://doi.org/10.4028/www.scientific.net/amm.397-400.131
https://doi.org/10.4028/www.scientific.net/amm.397-400.131
Publikováno v:
Applied Mechanics and Materials. :126-130
According to the high speed bearing failure problem caused by the high temperature, finite element model of high-speed hybrid ceramic angular contact ball bearing is established in this paper. Quantity of heat and heat transfer coefficient are calcul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d78307b86b3b40d85446f8e785a89d4c
https://doi.org/10.4028/www.scientific.net/amm.397-400.126
https://doi.org/10.4028/www.scientific.net/amm.397-400.126
Publikováno v:
Advanced Materials Research. :1760-1763
Direct at NC machine tool feed system, the article analyzed the influence of the nonlinear friction at each motion joint, and points out that the nonlinear friction are the main factors that influence the positioning accuracy of the feed system. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::04ff00f9c3ce6dcd2244ea4a0da777bd
https://doi.org/10.4028/www.scientific.net/amr.753-755.1760
https://doi.org/10.4028/www.scientific.net/amr.753-755.1760
Publikováno v:
Applied Mechanics and Materials. :299-303
The model that describes the friction between contact surfaces of motion pair of the feed system has been established use of Stribeck friction theory, it fully reflected the various lubrication conditions. The bifurcation and stability analysis of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8d59fd8b12bea71605f6a87912477606
https://doi.org/10.4028/www.scientific.net/amm.365-366.299
https://doi.org/10.4028/www.scientific.net/amm.365-366.299
Publikováno v:
Advanced Materials Research. :48-51
The theory of structural dynamic analysis is put forward firstly. Then the dynamic performance of HMC80 high-speed precision machining center column is analyzed by means of finite element method. The dynamic performance of the column is analyzed usin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::47cef2fc34def35257ce356561075a72
https://doi.org/10.4028/www.scientific.net/amr.655-657.48
https://doi.org/10.4028/www.scientific.net/amr.655-657.48
Publikováno v:
Advanced Materials Research. :2113-2116
According to the location and number of temperature measuring points of the motorized spindle thermal error, a new method for optimizing the locations of thermal key points is proposed. Firstly, temperature measuring points are divided into groups by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::904e94134230f450ae5e8f54bb76636c
https://doi.org/10.4028/www.scientific.net/amr.538-541.2113
https://doi.org/10.4028/www.scientific.net/amr.538-541.2113