Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Peng-Cheng Niu"'
Autor:
Xin-jing Wang, Peng-cheng Niu
Publikováno v:
Acta Mathematicae Applicatae Sinica, English Series. 37:364-379
We give the direct method of moving planes for solutions to the conformally invariant fractional power subLaplace equation on the Heisenberg group. The method is based on four maximum principles derived here. Then symmetry and nonexistence of positiv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3ff1722719cf22afbdec666e189d54f5
https://doi.org/10.1007/s10255-021-1016-x
https://doi.org/10.1007/s10255-021-1016-x
Publikováno v:
The International Journal of Advanced Manufacturing Technology. 69:2593-2603
In order to achieve effective control of thermal error compensation of computer numerical control (CNC) machine tools, the prediction accuracy and robustness of the compensation model is particularly important. In this paper, the temperature of sensi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3808ab0ded519ce5e43adcc373edd5c7
https://doi.org/10.1007/s00170-013-5229-x
https://doi.org/10.1007/s00170-013-5229-x
Publikováno v:
Applied Mechanics and Materials. 160:47-52
Eddy current sensor is widely used in engineering applications.When it was calibrated, generally used random error analysis method,but this will expand the range of measurement errors and limit its engineering applications.In this paper, we use a new
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::77bd45f4a3219055d9b518ec7ce20189
https://doi.org/10.4028/www.scientific.net/amm.160.47
https://doi.org/10.4028/www.scientific.net/amm.160.47
Autor:
Huan Xin Yao, Peng Cheng Niu
Publikováno v:
Applied Mechanics and Materials. 109:661-665
In the curved surface molding of automobiles’ covering components, large amounts of data should first be sampled, and be fitted to curves with the conventional data-fitting method. Then the curves are connected to face and given corresponding moldi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::517453be8801e2d6219793ff45ea7a13
https://doi.org/10.4028/www.scientific.net/amm.109.661
https://doi.org/10.4028/www.scientific.net/amm.109.661
Publikováno v:
Applied Mechanics and Materials. :475-479
In production practice，the preferred methods of determining interference fit of hole and axle are mainly empirical methods such as analogy ，which exist a wide range of errors. This paper discusses in detail the selection standard of common interf
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a3c9d80ac395d3258f010a450eab749f
https://doi.org/10.4028/www.scientific.net/amm.80-81.475
https://doi.org/10.4028/www.scientific.net/amm.80-81.475
Publikováno v:
Applied Mechanics and Materials. :1064-1069
This paper analyzed accuracy calibrating methods of multi-batch experiment data with system errors which can not be removed and gave the accuracy assessment parameters of mathematical models. Besides, according to the features of experiment data, thi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bd195ca472608d29e7a36f499fec38cf
https://doi.org/10.4028/www.scientific.net/amm.34-35.1064
https://doi.org/10.4028/www.scientific.net/amm.34-35.1064
Publikováno v:
Eighth International Symposium on Precision Engineering Measurement and Instrumentation.
Thermal error is the major factor in restricting the accuracy of CNC machining. The modeling accuracy is the key of thermal error compensation which can achieve precision machining of CNC machine tool. The traditional thermal error compensation model
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6ffbac37d95a6a7ca6d19a0cf885b1da
https://doi.org/10.1117/12.2014436
https://doi.org/10.1117/12.2014436
Publikováno v:
SPIE Proceedings.
Since Thermal error in precision CNC machine tools cannot be ignored, it is essential to construct a simple and effective thermal error compensation mathematical model. In this paper, three modeling methods are introduced in detail. The first is mult
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4c2ddfd84722ca3509296812eec24c3e
https://doi.org/10.1117/12.905451
https://doi.org/10.1117/12.905451
Publikováno v:
SPIE Proceedings.
The gear transmission is widely used in mechanical engineering. During the work time, the size of the bearing hole has changed due to temperature increase, leading to the size, shape and position tolerances of shaft and bearing with the components de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::76ce94112e091547977b5a75c05018d9
https://doi.org/10.1117/12.886344
https://doi.org/10.1117/12.886344