• CN：11-2187/TH
• ISSN：0577-6686

›› 2007, Vol. 43 ›› Issue (10): 50-54.

• 论文 •

### 基于近似熵的短路过渡焊接规范分析

1. 华南理工大学机械工程学院
• 发布日期:2007-10-15

### ANALYSIS OF WELDING CONDITIONS IN SHORT-CIRCUITING TRANSITION BASED ON APPROXIMATE ENTROPY

CAO Biao;LÜ Xiaoqing;ZENG Min;HUANG Shisheng

1. College of Mechanical Engineering, South China University of Technology
• Published:2007-10-15

Abstract: The theory and related algorithm of the nonlinear parameter approximate entropy are introduced. A method for analysing the stability in short-circuiting transition arc welding is put forward based on approximate entropy, which can be helpful to select the welding conditions. With welding variables matched, the current data in short-circuiting transition arc welding are acquired and the approximate entropy of current is calculated. Referring to the traditional theoretical analysis of the best stable arc, the association features between app- roximate entropy and stability are studied by comparing value and standard deviation of approximate entropy. The results show that the better welding conditions are characterized by larger approximate entropy and lower standard deviation, and the lowest standard deviation among the better matching welding conditions indicates the best stable arc.