An equivalent magnetic dipoles model for quantitative damage recognition of broken wire

• 来源期刊: 煤炭学报（英文版）
• 年，卷（期）: 2005,（2）
• 页码范围: 99-102
• 页数: 4页
• 语种: 英文

摘要

By simplifying saturatedly magnetized wire-rope to magnetic dipoles of the same magnetic field strength, an equivalent magnetic dipoles model is developed and the measuring principle for recognising damage of broken wire was presented. The relevant calculation formulas were also deduced. A composite solution method about nonlinear optimization was given. An example was given to illustrate the use of the equivalent magnetic dipoles method for quantitative damage recognition, and demonstrates that the result of this method is consistent with the real situation, so the method is valid and practical.