文章摘要
Guo Rui(郭锐)* **,Li Hucheng* ****,Zhao Zhiqian* ****,Zhang Rongbing****.[J].高技术通讯(英文),2020,(3):315~322
Health status assessment of axial piston pump under variable speed
  
DOI:doi:10.3772/j.issn.1006-6748.2020.03.010
中文关键词: 
英文关键词: axial piston pump, variable speed condition, order ratio variational mode decomposition (VMD) in angle domain, health status assessment
基金项目:
Author NameAffiliation
Guo Rui(郭锐)* ** (*Hebei Provincial Key Laboratory of Heavy Machinery Fluid Power Transmission and Control,Yanshan University, Qinhuangdao 066004, P.R.China) (**State key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou 310027, P.R.China) 
Li Hucheng* **** (*Hebei Provincial Key Laboratory of Heavy Machinery Fluid Power Transmission and Control,Yanshan University, Qinhuangdao 066004, P.R.China) (****Hebei Key Laboratory of Special Delivery Equipment Yanshan University, Qinhuangdao 066004, P.R.China) 
Zhao Zhiqian* **** (*Hebei Provincial Key Laboratory of Heavy Machinery Fluid Power Transmission and Control,Yanshan University, Qinhuangdao 066004, P.R.China) (****Hebei Key Laboratory of Special Delivery Equipment Yanshan University, Qinhuangdao 066004, P.R.China) 
Zhang Rongbing**** (****Hebei Key Laboratory of Special Delivery Equipment Yanshan University, Qinhuangdao 066004, P.R.China) 
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中文摘要:
      
英文摘要:
      The axial piston pump usually works under variable speed conditions. It is important to evaluate the health status of the axial piston pump under the variable speed condition. Aiming at the characteristic signals obtained under different wear levels of the port plate, a feature signal extraction method under variable speed conditions is proposed. Firstly, the combination of complete ensemble empirical mode decomposition with adaptive noise (CEEMDAN) energy spectrum and fast spectral kurtosis principle is used to accurately extract the intrinsic mode function (IMF) component containing the sensitive information of the degraded feature. Then, the aspect ratio analysis method of the angle domain variational mode decomposition (VMD) is used to process the feature index containing the sensitive information of the degraded feature. In order to evaluate the health status of the axial piston pump under variable speed, the vibration reliability analysis method for axial piston pump based on Weibull proportional failure rate model is proposed. The experimental results show that the proposed method can accurately evaluate the health status of the axial piston pump.
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