Approximate entropy analysis of current in short-circuiting arc welding

作者：Cao B^*; Lu XQ; Zeng M; Wang ZM; Huang SS

来源：Acta Physica Sinica, 2006, 55(4): 1696-1705.

• nonlinear
• approximate entropy
• short-circuiting transfer
• stability

Based on the approximate entropy theory and related algorithm, approximate entropy analysis of current in short-circuiting arc welding in CO2 shielding gas are performed from the point of view of nonlinear time sequences. Calculation and comparison of approximate entropy of current under different wire-feeding speeds, setting voltages and different gas flow rates show that approximate entropy of current can be taken as a creterion of stability of short-circuiting transfer. The results show that greater approximate entropy and less fluctuation indicate a more stable welding process.

• 出版日期2006-4
• 单位华南理工大学