Study of the CNC Machine Intelligent Diagnosis Based on Cascade Rough Set
Guoxin Wu · Machinery & Electronics · 2011
By considering the complexity influencing factors of CNC machinery fault,the application of cascade rough set on the NC machine fault diagnosis is analyzed.Take vibration signal amplitude of tool spindle,feeding spindle and knife library as the condition attributes,the first level rough set is used to determine the fault parts in tool spindle.Then,in the second rough set,the spindle frequency,vibration amplitude,high frequency components of energy and frequency distribution is used as the condition attributes to analysis the fault reason.The methods of cascade rough set can reduce the condition attributes and the decision accuracy is improved.