NL2024358B1 - Method for quantitatively evaluating dynamic quality of rolling bearing based on permutation entropy - Google Patents

Method for quantitatively evaluating dynamic quality of rolling bearing based on permutation entropy Download PDF

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Publication number
NL2024358B1
NL2024358B1 NL2024358A NL2024358A NL2024358B1 NL 2024358 B1 NL2024358 B1 NL 2024358B1 NL 2024358 A NL2024358 A NL 2024358A NL 2024358 A NL2024358 A NL 2024358A NL 2024358 B1 NL2024358 B1 NL 2024358B1
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Netherlands
Prior art keywords
permutation entropy
rolling bearing
signal
quality
outer ring
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NL2024358A
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English (en)
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Jiang Kuosheng
Zhou Yuanyuan
Hu Song
Li Yang
Ke Hucheng
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Univ Anhui Sci & Technology
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00—Testing of machine parts
    • G01M13/04—Bearings
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F30/00—Computer-aided design [CAD]
    • G06F30/10—Geometric CAD
    • G06F30/17—Mechanical parametric or variational design

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  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Pure & Applied Mathematics (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Analysis (AREA)
  • Computer Hardware Design (AREA)
  • Evolutionary Computation (AREA)
  • General Engineering & Computer Science (AREA)
  • Computational Mathematics (AREA)
  • Rolling Contact Bearings (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)

Claims (2)

Conclusies
1. Werkwijze voor het kwantitatief evalueren van een dynamische kwaliteit van een wentellager op basis van permutatie-entropie, gekenmerkt door de stappen: Stap 1: met behulp van een wervelstroomverplaatsingssensor verkrijgen van het buitenringvervormingssignaal welke de kwaliteit en dynamische prestaties van het wentellager representeren, Stap 2: berekenen van een permutatie entropie; Stap 3: normalisatie van een waarde van de permutatie entropie: 0 < Hp = Hp/In(m!) <1, waarbij 0 < Hp < 1, en Stap 4: het uitvoeren van een permutatie entropie resultaat, raadplegen van een evaluatie resultaat tabel van dynamische prestatie van een permutatie entropie van een getest lager en het verkrijgen van een classificatie van de dynamische kwaliteit van het wentellager.
2. De werkwijze voor het kwantitatief evalueren van een dynamische kwaliteit van een wentellager op basis van permutatie-entropie volgens conclusie 1, waarbij het berekenen van de permutatie entropie de volgende stappen omvat: 1) initialiseren van een tijdreeks, waarbij het verkregen buitenringvervormingssignaal wordt verdeeld in sub-reeksen met een lengte ® en een aantal lengte selectie segmenten van de sub-reeksen gelijk aan 10 + 1; 2) reconstrueren van een faseruimte, waarbij faseruimte reconstructie wordt uitgevoerd op elke sub-reeks en een vectorruimte van een sub-tijdreeks wordt verkregen: XD = {Dai +7), ,x(i + (m — D7)}; 3) rangschikken van elementen, waarbij m elementen in X (i) worden gerangschikt in aflopende volgorde op basis van waarden van de elementen en elementen van gelijke waarden worden gerangschikt 1n oorspronkelijke volgorde; 4) berekenen van de permutatie entropie, waarbij een parameter van de permutatie entropie wordt geselecteerd, een waarschijnlijkheid van voorkomen van elk element in X (i) en een waarde van een permutatie entropie van elke subtijdreeks wordt berekend met:
k
J
NL2024358A 2019-06-03 2019-12-02 Method for quantitatively evaluating dynamic quality of rolling bearing based on permutation entropy NL2024358B1 (en)

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CN114782453A (zh) * 2022-06-23 2022-07-22 张家港Aaa精密制造股份有限公司 一种基于智能制造的轴承质量检测方法及系统

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CN108364021A (zh) * 2018-02-08 2018-08-03 西北工业大学 一种基于层次排列熵的轴承故障特征提取方法
CN109253882A (zh) * 2018-10-08 2019-01-22 桂林理工大学 一种基于变分模态分解和灰度共生矩阵的转子裂纹故障诊断方法
DE102017120756A1 (de) * 2017-09-08 2019-03-14 Schaeffler Technologies AG & Co. KG Sensorlagereinheit mit Wälzlager und Messring

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CN102252843B (zh) * 2011-07-21 2013-01-09 河南科技大学 一种滚动轴承性能变异的评估方法
CN105758644A (zh) * 2016-05-16 2016-07-13 上海电力学院 基于变分模态分解和排列熵的滚动轴承故障诊断方法
CN106487359B (zh) * 2016-10-14 2019-02-05 石家庄铁道大学 基于自适应多尺度AVG-Hat变换的形态学滤波器的构造方法
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017120756A1 (de) * 2017-09-08 2019-03-14 Schaeffler Technologies AG & Co. KG Sensorlagereinheit mit Wälzlager und Messring
CN108364021A (zh) * 2018-02-08 2018-08-03 西北工业大学 一种基于层次排列熵的轴承故障特征提取方法
CN109253882A (zh) * 2018-10-08 2019-01-22 桂林理工大学 一种基于变分模态分解和灰度共生矩阵的转子裂纹故障诊断方法

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113252348A (zh) * 2021-05-13 2021-08-13 盾构及掘进技术国家重点实验室 一种隧道掘进机主驱动轴承动态性能测试评估方法
CN113252348B (zh) * 2021-05-13 2023-12-12 盾构及掘进技术国家重点实验室 一种隧道掘进机主驱动轴承动态性能测试评估方法
CN114782453A (zh) * 2022-06-23 2022-07-22 张家港Aaa精密制造股份有限公司 一种基于智能制造的轴承质量检测方法及系统

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