Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Yih-Fang Chang"'
Autor:
Truong-Giang Nguyen, Yih-Fang Chang
Publikováno v:
Intelligent Automation & Soft Computing. 17:355-368
In high-speed precision machining systems, trajectory requires very small feedrate fluctuation and contour error, which can be achieved with pazametric interpolation. This paper proposes aspeed-controlled interpolation method based on optimal-feedrat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::679e4dfaf1ac2a850dae4eb7eb81498a
https://doi.org/10.1080/10798587.2011.10643154
https://doi.org/10.1080/10798587.2011.10643154
Publikováno v:
Control Engineering Practice. 18:1399-1405
In this study, an open programmable logic controller (PLC) from Fuji electric prescribed in the Structured Text program was applied to develop a look-ahead linear jerk filter (LALJF) for a computerized numerically controlled (CNC) machine. To ensure
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e58f0ff4dae25ee3b7fb452b29b4319c
https://doi.org/10.1016/j.conengprac.2010.07.003
https://doi.org/10.1016/j.conengprac.2010.07.003
Autor:
Truong-Giang Nguyen, Yih-Fang Chang
Publikováno v:
Intelligent Automation & Soft Computing. 16:377-392
In high-speed precision machining systems, reference trajectory generation with smooth kinetic profiles plays a key role in the computerized numerical control (CNC). In this paper, look-ahead linear jerk filter algorithm is proposed to ensure smooth
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e476907c5e51e05759bd806bb776c23d
https://doi.org/10.1080/10798587.2010.10643087
https://doi.org/10.1080/10798587.2010.10643087
Autor:
Hung-Chi Tai, Chen-Hsi Hsieh, K. S. Clifford Chao, Shih-Hua Liu, Yi-Shing Leu, Yih-Fang Chang, Hung-Tao Hsiao, Yuan-Ching Chang, David Yc Huang, Yu-Jen Chen
Publikováno v:
Acta Oto-Laryngologica. 129:311-317
Conclusion. IMRT provided better conformity, less toxicity and better function restoration for advanced hypopharyngeal carcinoma after major surgery with ileocolic flap reconstruction. Objectives. To compare the results of adjuvant conventional radio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e91cfa897fcb88ba3be9b4cb001104e7
https://doi.org/10.1080/00016480802163366
https://doi.org/10.1080/00016480802163366
Autor:
Yih-Fang Chang
Publikováno v:
Intelligent Automation & Soft Computing. 13:139-151
This work proposes a monitor and controller of the ignition delay percentage (Td % ) of the discharge pulses, to maintain the rate of erosion in the electro-discharge machining (EDM'ing) process. A digital signal processor (DSP) interfaced with two c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b7c7f2f180742aca8f74945ff78b8234
https://doi.org/10.1080/10798587.2007.10642956
https://doi.org/10.1080/10798587.2007.10642956
Autor:
Yih-Fang Chang
Publikováno v:
Control Engineering Practice. 13:567-576
The proposed filter is placed in front a buffered digital differential analyzer, and is formed by combining three modified moving average filters. It can export the position commands to ensure smooth and accurate motion of a tool with a linear jerk c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6b61e9513a8b40c0494d9817c8bb025f
https://doi.org/10.1016/j.conengprac.2004.04.022
https://doi.org/10.1016/j.conengprac.2004.04.022
Autor:
Yih-Fang Chang
Publikováno v:
Control Engineering Practice. 13:95-104
A robust proportional plus derivative (PD) controller of the gap between an electrode and a workpiece is designed to tolerate the bounded gain variation related to the generation of powder in the gap and the nonlinearity of the feedback signal. The r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::acdda99888e0e3618682f2ac09db0363
https://doi.org/10.1016/j.conengprac.2004.02.007
https://doi.org/10.1016/j.conengprac.2004.02.007
Autor:
Yih-Fang Chang, Zhi-Hao Chiu
Publikováno v:
Mechatronics. 14:1121-1139
Robust gap-control is applied to compensate for electrode wear in an electric discharge scanning (ED-Scanning) process. This control compensates for the wear without reference to the wear ratio of the electrodes. An auxiliary gap-control loop in the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2402fd3e88aa080a172c0ce5e5fb589d
https://doi.org/10.1016/j.mechatronics.2004.06.005
https://doi.org/10.1016/j.mechatronics.2004.06.005
Autor:
Yih-Fang Chang
Publikováno v:
JSME International Journal Series C. 45:712-721
As an electrode quickly moves towards the discharge field, and then starts to discharge, the proposed variable structure system (VSS) with large switched proportional (P) gains can suddenly hold the electrode at the appropriate position. The erosion
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3a54dc61cb484bd980e75d7439a52e47
https://doi.org/10.1299/jsmec.45.712
https://doi.org/10.1299/jsmec.45.712
Publikováno v:
Journal of Materials Processing Technology. 57:351-359
Operational parameters such as cutting depth, feed, and spindle speed, are regulated to satisfactory values by an adaptive controller with constraints (ACC) in order to bring the machine tool to its maximum productivity during the cutting process. Wh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5e42acce52f8393ef2d521002a43b2dd
https://doi.org/10.1016/0924-0136(95)02078-0
https://doi.org/10.1016/0924-0136(95)02078-0