Evidence map›Paper›PMID 30200505›Full record

ArticleSensors (Basel, Switzerland)2018

Early Fault Diagnosis for Planetary Gearbox Based Wavelet Packet Energy and Modulation Signal Bispectrum Analysis.

Junchao Guo, Zhanqun Shi, Haiyang Li, Dong Zhen, Fengshou Gu, Andrew D Ball

Abstract read
In one paragraph

Article in Sensors (Basel, Switzerland), 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

8 citing papers in PubMed.

  1. Article
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  5. Article
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  7. Article
  8. Motion Periods of Planet Gear Fault Meshing Behavior.Sensors (Basel, Switzerland) · 2018
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Junchao GuoSchool of Mechanical Engineering, Hebei University of Technology, Tianjin 300401, China. jc_guo12@163.com.
Zhanqun ShiSchool of Mechanical Engineering, Hebei University of Technology, Tianjin 300401, China. z_shi@hebut.edu.cn.
Haiyang LiCentre for Efficiency and Performance Engineering, University of Huddersfield, Huddersfield HD1 3DH, UK. haiyang.li@hud.ac.uk.
Dong ZhenSchool of Mechanical Engineering, Hebei University of Technology, Tianjin 300401, China. d.zhen@hebut.edu.cn.ORCID 0000-0002-5047-3346
Fengshou GuCentre for Efficiency and Performance Engineering, University of Huddersfield, Huddersfield HD1 3DH, UK. f.gu@hud.ac.uk.ORCID 0000-0003-4907-525X
Andrew D BallCentre for Efficiency and Performance Engineering, University of Huddersfield, Huddersfield HD1 3DH, UK. a.ball@hud.ac.uk.

Funding

Hebei Provincial International Science and Technology Cooperation Program of China 17394303DNational Natural Science Foundation of China 51605133National Natural Science Foundation of China 51705127
6 · The paper itself

Abstract

The planetary gearbox is at the heart of most rotating machinery. The premature failure and subsequent downtime of a planetary gearbox not only seriously affects the reliability and safety of the entire rotating machinery but also results in severe accidents and economic losses in industrial applications. It is an important and challenging task to accurately detect failures in a planetary gearbox at an early stage to ensure the safety and reliability of the mechanical transmission system. In this paper, a novel method based on wavelet packet energy (WPE) and modulation signal bispectrum (MSB) analysis is proposed for planetary gearbox early fault diagnostics. First, the vibration signal is decomposed into different time-frequency subspaces using wavelet packet decomposition (WPD). The WPE is calculated in each time-frequency subspace. Secondly, the relatively high energy vectors are selected from a WPE matrix to obtain a reconstructed signal. The reconstructed signal is then subjected to MSB analysis to obtain the fault characteristic frequency for fault diagnosis of the planetary gearbox. The validity of the proposed method is carried out through analyzing the vibration signals of the test planetary gearbox in two fault cases. One fault is a chipped sun gear tooth and the other is an inner-race fault in the planet gear bearing. The results show that the proposed method is feasible and effective for early fault diagnosis in planetary gearboxes.

Indexed as

Modulation Signal Bispectrum (MSB)planetary gearboxtime-frequency subspacesWavelet Packet Energy (WPE)

Identifiers

PMID30200505
PMCPMC6163465

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.