scholarly journals Arc Length Control of Pulsed MIG Welding Based on Two Dimensional Fuzzy Control

Author(s):  
Lin-bing WANG ◽  
Yi-da ZOU ◽  
Xiao-ya YIN
2011 ◽  
Vol 2-3 ◽  
pp. 69-73
Author(s):  
Kuan Fang He ◽  
Ji Gang Wu ◽  
Si Wen Xiao

This research aims at the retention of the stability of arcs in twin-arc pulsed metal active gas welding process. That is, a correction-factor fuzzy logic controller (FLC) is designed to keep the stability of arcs of twin-arcs pulsed metal active gas welding (MAG) process. In the controller, the peak arc voltage of the master welding power is controlled by the pulse base time with means of feed back of arc voltage. The peak arc voltage of slave welding power is controlled by the wire feeding speed with means of feed back of peak arc voltage. The adjusting fuzzy control rule with correction factor is introduced to design for controlling rule and table, and the FLC is realized in a Look-Up-Table (LUT) method. With the controller, the arc length can be kept stable in welding process. Experimental results are provided to confirm the effectiveness of this approach.


1992 ◽  
Vol 10 (4) ◽  
pp. 490-495 ◽  
Author(s):  
Satoshi Yamane ◽  
Kenji Ohshima ◽  
Yoshiaki Kohashi
Keyword(s):  

2010 ◽  
Vol 22 (6) ◽  
pp. 784-789 ◽  
Author(s):  
Hiroyuki Shinoda ◽  
◽  
Hiromasa Chigusa ◽  
Yasutoshi Makino ◽  
◽  
...  

The stretchable sensor skin we propose uses microwaves propagating in a two-Dimensional Signal Transmission (2DST) sheet. A small tactile sensor chip with a pair of Resonant Proximity Connectors (RPCs) couples with 2D microwaves carrying signals. Chip operating power is also supplied by 2D microwaves. The RPC is a spiral electrode whose arc length is a quarter of the electromagnetic wavelength. Chip operating power is supplied by 2D microwaves. Sensor chips are connected to the 2DST sheet by RPCs without electrical contacts anywhere on the sheet. Resonance induced at the electrode reduces impedance between the connector and the conductive layer of the 2DST sheet, enabling sensor chips to be connected stably to the sheet. Experimental results on the RPC show the concept to be effective. We fabricated a 1-bit (touch detection) tactile sensor element consisting of a RFID-tag and RPCs, and confirmed in experiments that the sensor element operates in a stretchable 2DST sheet.


1995 ◽  
Vol 9 (3) ◽  
pp. 191-196 ◽  
Author(s):  
Y Kaneko ◽  
T Iisaka ◽  
K Oshima ◽  
S Yamane

Author(s):  
Wolf-Dieter Richter

For evaluating probabilities of arbitrary random events with respect to a given multivariate probability distribution, specific techniques are of great interest. An important two-dimensional high risk limit law is the Gauss-exponential distribution whose probabilities can be dealt with based upon the Gauss-Laplace law. The latter will be considered here as an element of the newly introduced family of (p,q)-spherical distributions. Based upon a suitably defined non-Euclidean arc-length measure on (p,q)-circles we prove geometric and stochastic representations of these distributions and correspondingly distributed random vectors, respectively. These representations allow dealing with the new probability measures similarly like with elliptically contoured distributions and more general homogeneous star-shaped ones. This is demonstrated at hand of a generalization of the Box-Muller simulation method. En passant, we prove an extension of the sector and circle number functions.


1967 ◽  
Vol 4 (10) ◽  
pp. 1373-1374
Author(s):  
T. A. SEDGWICK ◽  
L. L. JESSIE

Mechatronics ◽  
2005 ◽  
Vol 15 (5) ◽  
pp. 505-522 ◽  
Author(s):  
Diantong Liu ◽  
Jianqiang Yi ◽  
Dongbin Zhao ◽  
Wei Wang

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