Research of Engine Condition-based Maintenance based on Rough Set and Support Vector Data Description
Shuo Zhang · Gas Turbine Technology · 2013
Every thermodynamic parameter may be using in reflecting engine condition,on basis of analyzing change character of every performance parameter,selecting parameter combination that expresses change of performance furthest.The uniformity of rough sets and statistical methods was employed to find out the significance of each attribute,the weight coefficients could be determined.Further selected parameter combination is fused,therefore engine condition is judged accurately.The method based on support vector data description for valve determination of condition-based maintenance is presented.By adopting outlier object sample,the accuracy of condition-based maintenance is enhanced.The result of simulation experiment shows this method can determine time of condition-based maintenance accurately.It has reference value for time selecting of condition-based maintenance.