基于KPCA-FSVM的液压泵可靠性寿命分布识别  

Identification of Reliability Life Distribution of Hydraulic Pump Based on KPCA and FSVM

作　　者：景涛[1] 曹克强[1] 胡良谋[1] 高斌[1] 

机构地区：[1]空军工程大学,西安710038

出　　处：《中国机械工程》2015年第19期2595-2600,共6页China Mechanical Engineering

摘　　要：为了准确快速识别出液压泵的可靠性寿命分布模型,提出了一种基于核主元分析和模糊支持向量机的可靠性寿命分布模型识别方法。该方法充分利用核主元分析非线性特征提取的优势和模糊支持向量机良好的分类能力,建立了适合可靠性寿命分布识别的模糊支持向量机模型,并将其应用于液压泵可靠性寿命分布模型识别。仿真实验结果表明,该模型能够降低计算的复杂度,具有良好的泛化能力,能够准确地识别出液压泵无故障工作时间数据所属的寿命分布类型。Aiming at identifying the reliability life distribution model of the hydraulic pump accu- rately and efficiently, an algorithm of KPCA and FSVM was brought forward. The recognition model of the reliability life distribution model was designed by making full use of advantages of the KPCA nonlinear feature extraction and the FSVM classification capacity, and might be used for identifying the reliability life distribution model of the hydraulic pump. The simulation results show that, the proposed method can reduce computation complexity, has good ability for generalization, and identify the life distribution type of life on time between failures of hydraulic pump accurately.

关 键 词：核主元分析 模糊支持向量机 寿命分布模型 液压泵 无故障工作时间 

分 类 号：V24[航空宇航科学与技术—飞行器设计]