PSI - Issue 50

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ScienceDirect

Procedia Structural Integrity 50 (2023) 1–5 Structural Integrity Procedia 00 (2023) 000–000 Structural Integrity Procedia 00 (2023) 000–000

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© 2023 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0 ) Peer-review under responsibility of the scientific committee of the MRDMS 2022 organizers Abstract In this article we present a new numerical method for calculating the individual residual life of structural elements for a leader-item. All known methods that are used in predicting an individual residual life of structural elements have a significant drawback — they require a large amount of statistical information. For some critical items, it is almost impossible to obtain information in full. Therefore, this article proposes a new method for constructing a forecast based on the behavior of a leader-item. This method requires a minimum of statistical information. The approbation of the method is shown by the example of the friction process of the coupling nodes of the landing gear struts of the aircraft. © 2023 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http: // creativecommons.org / licenses / by-nc-nd / 4.0 / ) Peer-review under responsibility of the scientific committee of the MRDMS 2022 organizers. Keywords: Mathematical modeling; individual design reliability; ordinary least squares method 16th International Conference on Mechanics, Resource and Diagnostics of Materials and Structures (MRDMS 2022) The method of calculating the individual residual life of structural elements based on a leader-item Afanaseva, E.A. a, ∗ , Afanaseva, O.S. a a Samara State Technical University, 244, Molodogvardeyskaya str., Samara, 443100, Russian Federation Abstract In this article we present a new numerical method for calculating the individual residual life of structural elements for a leader-item. All known methods that are used in predicting an individual residual life of structural elements have a significant drawback — they require a large amount of statistical information. For some critical items, it is almost impossible to obtain information in full. Therefore, this article proposes a new method for constructing a forecast based on the behavior of a leader-item. This method requires a minimum of statistical information. The approbation of the method is shown by the example of the friction process of the coupling nodes of the landing gear struts of the aircraft. © 2023 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http: // creativecommons.org / licenses / by-nc-nd / 4.0 / ) Peer-review under responsibility of the scientific committee of the MRDMS 2022 organizers. Keywords: Mathematical modeling; individual design reliability; ordinary least squares method 16th International Conference on Mechanics, Resource and Diagnostics of Materials and Structures (MRDMS 2022) The method of calculating the individual residual life of structural elements based on a leader-item Afanaseva, E.A. a, ∗ , Afanaseva, O.S. a a Samara State Technical University, 244, Molodogvardeyskaya str., Samara, 443100, Russian Federation

1. Introduction 1. Introduction

The well–known methods of individual prediction of the deformation properties of structural elements have one significant drawback — a fairly large amount of statistical information is required Bolotin (1984); Frolov (1984); Frolov et al. (1986). For unique and expensive items that the industry produces in small numbers it is almost impossi ble to obtain statistical information of the required volume. In this regard, this paper considers a method for assessing an individual residual life of an item using a prototype (item-leader), the use of which requires a minimum of experi mental data. The application of this method is illustrated by the example of estimating the kinetics of friction units of the simplest rod-type structures. The well–known methods of individual prediction of the deformation properties of structural elements have one significant drawback — a fairly large amount of statistical information is required Bolotin (1984); Frolov (1984); Frolov et al. (1986). For unique and expensive items that the industry produces in small numbers it is almost impossi ble to obtain statistical information of the required volume. In this regard, this paper considers a method for assessing an individual residual life of an item using a prototype (item-leader), the use of which requires a minimum of experi mental data. The application of this method is illustrated by the example of estimating the kinetics of friction units of the simplest rod-type structures.

∗ Corresponding author. Tel.: + 7-927-296-1147 E-mail address: afanasieva.ea@samgtu.ru ∗ Corresponding author. Tel.: + 7-927-296-1147 E-mail address: afanasieva.ea@samgtu.ru

2452-3216 © 2023 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the MRDMS 2022 organizers 10.1016/j.prostr.2023.10.014 2210-7843 © 2023 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http: // creativecommons.org / licenses / by-nc-nd / 4.0 / ) Peer-review under responsibility of the scientific committee of the MRDMS 2022 organizers. 2210-7843 © 2023 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http: // creativecommons.org / licenses / by-nc-nd / 4.0 / ) Peer-review under responsibility of the scientific committee of the MRDMS 2022 organizers.