Estimation of system reliability by using the PLS-regression based corrected response surface method

Liu, Huahan; Jiang, Wei; Hulio, Zahid Hussain; Wang, Qiuzhi

doi:10.17531/ein.2016.2.14

Cited by 3 publications

(3 citation statements)

References 33 publications

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“…Step 5: Through Steps 1-4, two matrixes can be obtained as follows: matrix of error samples-means of dynamic stress, a matrix of error samples-standard deviations of dynamic stress. Then, the surrogate models of the mean and standard deviation of the stress can be obtained by using the C-PLSR method (Liu et al, 2016), taking the k th part as an example:…”

Section: Equivalent Cumulative Errors Along the Meshing Linementioning

confidence: 99%

A dynamic reliability assessment methodology of gear transmission system of wind turbine

Liu

Dong²,

Jiang

2020

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Purpose The purpose of this paper is to present a new methodology, used for dynamic reliability analysis of a gear transmission system (GTS) of wind turbine (WT), which could be used for assembly decision-making of the parts with errors to improve the GTS’s performance. Design/methodology/approach This paper involves the dynamic and dynamic reliability analysis of a GTS. The history curves of dynamic responses of the parts are obtained with the developed gear-bearing coupling dynamic model considering the random errors, failure dependency and random load. Then, the surrogate models of the mean and standard deviation of responses are presented by statistics, rain flow counting method and corrected-partial least squares regression response surface method. Further, a novel dynamic reliability model based on the maximum extreme theory, a theory of sequential statistics, equivalent principles and the inverse transform theory of random variable sampling, is developed to overcome the limitations of traditional methods. Findings The dynamic reliability of GTS considering the different impact factors are evaluated. The proposed reliability methodology not only overcomes the limitations associated with traditional approaches but also provides good guidance to assembly the parts in a GTS to its best performance. Originality/value Instead of constant errors, this paper considers the randomness of the impact factors to develop the dynamic reliability model. Further, instead of the limitation of the normal distribution of the random parameters in the traditional method, the proposed methodology can deal with the problems with non-normal distribution parameters, which is more suitable for the real engineering problems.

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Section: Equivalent Cumulative Errors Along the Meshing Linementioning

confidence: 99%

A dynamic reliability assessment methodology of gear transmission system of wind turbine

Liu

Dong²,

Jiang

2020

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“…The reliability of assembly process will be discussed by using the numerical assembly model in this section. The C-PLSR-RSM-based reliability model 31 developed by the authors of this paper, which is an effective way to deal with the implicit reliability problems, is used to develop the reliability model. The deduced reliability model of the assembly process is shown in Figure 7.…”

Section: Reliability Model For the Assembly Process Of The Stator Canmentioning

confidence: 99%

Reliability analysis of the precision assembly process of a scaled stator can of the AP1000 reactor coolant pump

Jiang

Liu

2018

Proceedings of the Institution of Mechanical Engineers, Part C:

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In this study, a reliability model for the assembly process of a stator can on the stator core in the AP1000 reactor coolant pump in a reduced scale is developed. Firstly, the tube hydroforming-based stator can assembly method is reviewed briefly. In order to extract the factors affecting the assembly results, a numerical assembly model and an assembly experiment rig are established. Assembly results are predicted by numerical analysis and validated by experiment. A reliability model with the proposed corrected-partial least squares regression-response surface method (C-PLSR-RSM)-based system reliability method is developed. The model is applied to analyze the assembly reliability of the stator can, and the effects of failure dependency on the estimation accuracy of reliability, as well as the relationships between the assembly reliabilities and different single evaluation index. The results indicate that the reliability model is able to efficiently analyze the implicit stator can assembly problem. Failure correlation brings a negative correlation relationship between the different assembly performance functions.

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“…In this section of the study, the transmission lines in Turkey have been grouped according to their voltage levels and the days in which the line shall run have been determined with the help of the surface fitting algorithm. Detailing the failures according to the data belonging to the last six years has a great importance in terms of detecting the running reliability of the system in the preventive maintenance and repair works [7,8]. When these attained coefficients are inserted to their places in the equation ( 1), the estimated values shall be reached.…”

Section: The Examination Of the Electricity Transmission Line Failures 31 The Examination Of The Failures Of All The Electricity Transmismentioning

confidence: 99%

The determination of the running reliability of the system with the method of polynomial regression for electricity transmission lines

Parlakyıldız

Gençoğlu²

2016

Bitlis Eren Univ J Sci Technol

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One of the most essential data of the social and economic development accepted all around the world is energy. The reasons such as the rapidity of the urbanization and industrialization and rapid increase in population cause to the continuous and indispensable increase in the demand for energy. While the demand for electricity energy is so high, what is important in terms of the user is the submission of the continuous and qualified energy to their own usage. In this study, the failures and power transformer failures occurring in Turkey electricity transmission system have been detected as hourly, monthly and annually and in this way; with the use of these data, the reasons for the failures have been examined and suggestions for solutions have been studied and it has provided opportunities for the conduction of preventive maintenance and repair works in the future. When the failure numbers of 380 kV lines have been examined, it is seen that some lines paint a very negative picture. When the failing lines have been monthly examined, it is seen that there is an accumulation in terms of failure in April-May and August-September periods. By means of this study; the failures occurring in the energy transmission lines have been classified on the basis of hour, month and year and the running reliability of the system in the transmission lines to be established in the future has been determined.

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Estimation of system reliability by using the PLS-regression based corrected response surface method

Abstract: Estimation of system reliability by using the PLS-regression based corrected response surface method. Eksploatacja i niezawodnosc - Maintenance and Reliability 2016; 18 (2): 260-270, http://dx.doi.org/10.17531/ein.2016

Cited by 3 publications

References 33 publications

A dynamic reliability assessment methodology of gear transmission system of wind turbine

A dynamic reliability assessment methodology of gear transmission system of wind turbine

Reliability analysis of the precision assembly process of a scaled stator can of the AP1000 reactor coolant pump

The determination of the running reliability of the system with the method of polynomial regression for electricity transmission lines

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