Performance Degradation Analysis of Mechanical Seal Based on Vibration Signal Processing

Liu, Di; Wang, Shaoping; Zhang, Chao

doi:10.1109/sdpc.2017.80

Cited by 2 publications

(2 citation statements)

References 6 publications

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“…The rapid developments in industry have elevated the importance of the product reliability. [1][2][3] Generally, in order to make sure the high reliability of the systems, the modern manufactured products, such as bearings, 4,5 seals, 6,7 and power MOSFETs, 8 have seen a growing demand for high reliability. As a result, in order to evaluate the useful lives of the products, the reliability tests are always performed before them are put into the systems.…”

Section: Introductionmentioning

confidence: 99%

A reliability estimation method based on two‐phase Wiener process with evidential variable using two types of testing data

Shi

Qiao

Wang

et al. 2022

Quality & Reliability Eng

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The evidential variable shows the powerful ability on the parameter description, so we have cooperated it with the linear Wiener process to model linear degradation processes. However, the degradation paths of some products exhibit two-phase patterns over the running time, which cannot be modeled by the linear Wiener process. Hence, it is developed into an associated evidential variable-based two-phase Wiener process. In order to utilize the proposed model, the related evidence obtaining, evidence fusion and performance inference approaches are constructed. A simulation study and an actual case are performed to verify the superiorities of the proposed method. The proposed method provides higher accuracies of the useful life, degradation, and reliability evaluations, due to utilizing the evidential variable and considering the two-phase degradation conditions.

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Section: Introductionmentioning

confidence: 99%

A reliability estimation method based on two‐phase Wiener process with evidential variable using two types of testing data

Shi

Qiao

Wang

et al. 2022

Quality & Reliability Eng

Self Cite

View full text Add to dashboard Cite

show abstract

“…Based on the proposed method, the effects of the seal-shaft interference on the seal lifetime have been analyzed. Liu et al 8 proposed a vibration signal processing-based performance degradation analysis method for mechanical seals. The root mean square of vibration signal of mechanical seal is considered as the indicator of the mechanical seal performance.…”

Section: Introductionmentioning

confidence: 99%

Bayesian model averaging based storage lifetime assessment method for rubber sealing rings

Liu

Wang

Zhang

et al. 2019

Advances in Mechanical Engineering

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Rubber sealing ring is one of the most widely used seals. It is always stored for a period of time before put into use, especially in aeronautic and aerospace applications. It is necessary to evaluate the storage lifetime of rubber sealing rings. However, due to the long storage lifetime of rubber sealing rings, two issues need to be handled, including model uncertainty and lack of storage lifetime data. A Bayesian model averaging based storage lifetime assessment method for rubber sealing rings is proposed in this article. The Gamma distribution model and Weibull distribution model are selected as the candidate models and combined based on Bayesian model averaging method. The Bayesian model averaging method is applied to handle the model uncertainty. Considering the lack of storage lifetime data, the degradation data are utilized to give the priors of model probability and distribution parameters based on the similarity principle. The results indicate that the proposed method has smaller minus log-likelihood value and is better than the other discussed method, considering both goodness of fit and complexity.

show abstract

Performance Degradation Analysis of Mechanical Seal Based on Vibration Signal Processing

Cited by 2 publications

References 6 publications

A reliability estimation method based on two‐phase Wiener process with evidential variable using two types of testing data

A reliability estimation method based on two‐phase Wiener process with evidential variable using two types of testing data

Bayesian model averaging based storage lifetime assessment method for rubber sealing rings

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