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科研机构
兰州理工大学 [20]
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期刊论文 [15]
会议论文 [5]
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2022 [1]
2021 [4]
2020 [1]
2019 [1]
2018 [2]
2015 [3]
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专题:兰州理工大学
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Health condition monitoring of bearings based on multifractal spectrum feature with modified empirical mode decomposition-multifractal detrended fluctuation analysis
期刊论文
STRUCTURAL HEALTH MONITORING-AN INTERNATIONAL JOURNAL, 2022
作者:
Chen, Guangyi
;
Yan, Changfeng
;
Meng, Jiadong
;
Wang, Zonggang
;
Wu, Lixiao
收藏
  |  
浏览/下载:26/0
  |  
提交时间:2022/03/01
Empirical mode decomposition-multifractal detrended fluctuation analysis
scaling exponent
health condition monitoring
step-moving window
multifractal spectrum feature
deterministic
random separation
Early fault feature extraction of rolling bearing based on optimized VMD and improved threshold denoising
期刊论文
Zhendong yu Chongji/Journal of Vibration and Shock, 2021, 卷号: 40, 期号: 13, 页码: 146-153
作者:
Chen, Peng
;
Zhao, Xiaoqiang
收藏
  |  
浏览/下载:5/0
  |  
提交时间:2022/02/17
Extraction
Feature extraction
Signal processing
Spectrum analysis
Adaptive decomposition
Correlation coefficient
Fault feature extractions
Mode decomposition
Optimization algorithms
Optimization method
Teager energy operators
Threshold de-noising
Noise reduction of a safety valve pressure relief signal based on an improved wavelet threshold function
期刊论文
Zhendong yu Chongji/Journal of Vibration and Shock, 2021, 卷号: 40, 期号: 12, 页码: 143-150
作者:
Li, Shuxun
;
Wang, Zhihui
;
Kang, Yunxing
;
Hou, Jianjun
收藏
  |  
浏览/下载:11/0
  |  
提交时间:2022/02/17
Butterworth filters
Exponential functions
Safety valves
Wavelet decomposition
Adaptive wavelet thresholds
Adjustment factors
Attenuation characteristics
Mechanical systems
Noise reduction effect
Noise reduction methods
Simulated signals
Threshold functions
Dynamic modeling of rotor-bearing-housing system with local defect on ball bearing using mass distribution and energy methods
期刊论文
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART K-JOURNAL OF MULTI-BODY DYNAMICS, 2021, 卷号: 235, 期号: 3, 页码: 412-426
作者:
Liu, Yaofeng
;
Yan, Changfeng
;
Wang, Kai
;
Gao, Xianghong
;
Zhang, Xin
收藏
  |  
浏览/下载:6/0
  |  
提交时间:2021/06/03
Dynamic model
rotor-bearing-housing system
local defect
energy method
distribution of rotor mass
A 4-DOF dynamic model for ball bearing with multiple defects on raceways
期刊论文
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART K-JOURNAL OF MULTI-BODY DYNAMICS, 2021, 卷号: 235, 期号: 1, 页码: 3-18
作者:
Gao, Xianghong
;
Yan, Changfeng
;
Liu, Yaofeng
;
Yan, Pengfei
;
Yang, Junbao
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2021/04/12
Ball bearing
number of defects
angle between defects
vibration response
frequency spectrum
Prediction Method of Cavitation Jet Wave Attenuation Based on Five-Equation Two-Fluid Model
期刊论文
Mathematical Problems in Engineering, 2020, 卷号: 2020
作者:
Fu, You
;
Xie, Zhaopeng
;
Zhao, Weiguo
收藏
  |  
浏览/下载:9/0
  |  
提交时间:2020/11/14
Cavitation
Forecasting
Pipelines
Two phase flow
Experimental scheme
Flow charac-teristics
Numerical calculation methods
Pipeline leakage
Prediction methods
Pressure fluctuation
Pressure response
Unsteady friction models
Performance Analysis of Laser Communication System Under Sand-dust Channel
期刊论文
Faguang Xuebao/Chinese Journal of Luminescence, 2019, 卷号: 40, 期号: 5, 页码: 659-665
作者:
Cao, Ming-Hua
;
Yao, Yu
;
Song, Li-Hua
;
Wang, Hui-Qin
收藏
  |  
浏览/下载:7/0
  |  
提交时间:2020/11/14
Channel capacity
Dust
Errors
Integrated optics
Moisture
Moisture determination
Sand
Signal to noise ratio
Visibility
Atmospheric visibility
Attenuation characteristics
Complex permittivity
Performance analysis
Sand dusts
Scattering and absorption
Transmission distances
Transmission performance
A Method of Reconstruction of Compressed Measuring for Mechanical Vibration Signals Based on K-SVD Dictionary-training Algorithm Sparse Representation
期刊论文
Jixie Gongcheng Xuebao/Journal of Mechanical Engineering, 2018, 卷号: 54, 期号: 7, 页码: 97-106
作者:
Guo, Junfeng
;
Shi, Bin
;
Wei, Xingchun
;
Li, Haiyan
;
Wang, Zhiming
收藏
  |  
浏览/下载:8/0
  |  
提交时间:2020/11/14
Compressed sensing
Digital storage
Signal reconstruction
Signal sampling
Singular value decomposition
Dictionary trainings
Gaussian random matrices
Mechanical vibration signals
Nyquist sampling theorem
Orthogonal matching pursuit
Over-complete dictionaries
Sparse representation
Vibration signal
Method of Compressed Sensing for Mechanical Vibration Signals Based on Double Sparse Dictionary Model
期刊论文
Jixie Gongcheng Xuebao/Journal of Mechanical Engineering, 2018, 卷号: 54, 期号: 6, 页码: 118-127
作者:
Guo, Junfeng
;
Shi, Bin
;
Lei, Chunli
;
Wei, Xingchun
;
Li, Haiyan
收藏
  |  
浏览/下载:8/0
  |  
提交时间:2020/11/14
Compressed sensing
Condition monitoring
Data communication equipment
Digital storage
Signal reconstruction
Signal sampling
Singular value decomposition
Gaussian random matrices
Mechanical vibration signals
Nyquist sampling theorem
Orthogonal matching pursuit
Over-complete dictionaries
Sparse dictionaries
Sparse representation
Vibration signal
SVD principle analysis and fault diagnosis for bearings based on the correlation coefficient
期刊论文
MEASUREMENT SCIENCE AND TECHNOLOGY, 2015, 卷号: 26, 期号: 8
作者:
Qiao, Zijian
;
Pan, Zhengrong
收藏
  |  
浏览/下载:0/0
  |  
提交时间:2019/11/15
SVD
Hankel matrix
impulse signal detection
mechanical fault diagnosis
rolling bearings
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