Damage Analysis of Rolling Stock Automatic Coupler under Cyclic Loads
To ensure the operational safety of the automatic couplers of a rolling stock subjected to cyclic loading, reliability and residual service life must be determined. This paper involved the prediction of the durability of the automatic coupler SA3 by analytical summation of cyclic damage. During the...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-10-01
|
| Series: | Applied Sciences |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2076-3417/14/19/9025 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850283735707025408 |
|---|---|
| author | Vaidas Lukoševičius Žilvinas Bazaras Donata Putnaitė Eglė Bazaraitė |
| author_facet | Vaidas Lukoševičius Žilvinas Bazaras Donata Putnaitė Eglė Bazaraitė |
| author_sort | Vaidas Lukoševičius |
| collection | DOAJ |
| description | To ensure the operational safety of the automatic couplers of a rolling stock subjected to cyclic loading, reliability and residual service life must be determined. This paper involved the prediction of the durability of the automatic coupler SA3 by analytical summation of cyclic damage. During the investigation, the cyclic characteristics and damage modes of the automatic coupler material that influence the accumulation of damage are determined. The stress and strain state assessment model was developed using a 3D finite element method for the automatic coupler housing as a geometrically complex component. A methodology was used to assess damage per load cycle that is applicable to any sequence of automatic coupler load cycles. For this purpose, the authors used low-cycle stationary load dependencies that account for quasi-static and low-cycle fatigue damage. The investigation showed that a coupler may develop a crack due to accumulated quasi-static and fatigue damage. For damage summation, the dependences of low-cycle stationary stress-controlled load accounting for low-cycle, quasi-static fatigue damage are proposed in view of the variation of the load on the automatic coupler during operation depending on the weight of the rolling stock, velocity, and railway relief. The proposed methodology is applicable to the calculation of other housings under similar loading conditions. |
| format | Article |
| id | doaj-art-318e3a8d6d9b46c3b51f720b4d9a2344 |
| institution | OA Journals |
| issn | 2076-3417 |
| language | English |
| publishDate | 2024-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj-art-318e3a8d6d9b46c3b51f720b4d9a23442025-08-20T01:47:44ZengMDPI AGApplied Sciences2076-34172024-10-011419902510.3390/app14199025Damage Analysis of Rolling Stock Automatic Coupler under Cyclic LoadsVaidas Lukoševičius0Žilvinas Bazaras1Donata Putnaitė2Eglė Bazaraitė3Faculty of Mechanical Engineering and Design, Kaunas University of Technology, Studentų Str. 56, 51424 Kaunas, LithuaniaFaculty of Mechanical Engineering and Design, Kaunas University of Technology, Studentų Str. 56, 51424 Kaunas, LithuaniaFaculty of Electrical and Electronics Engineering, Kaunas University of Technology, Studentų Str. 48, 51367 Kaunas, LithuaniaFaculty of Architecture, Vilnius Gediminas Technical University (VILNIUS TECH), Trakų Str. 1, 01132 Vilnius, LithuaniaTo ensure the operational safety of the automatic couplers of a rolling stock subjected to cyclic loading, reliability and residual service life must be determined. This paper involved the prediction of the durability of the automatic coupler SA3 by analytical summation of cyclic damage. During the investigation, the cyclic characteristics and damage modes of the automatic coupler material that influence the accumulation of damage are determined. The stress and strain state assessment model was developed using a 3D finite element method for the automatic coupler housing as a geometrically complex component. A methodology was used to assess damage per load cycle that is applicable to any sequence of automatic coupler load cycles. For this purpose, the authors used low-cycle stationary load dependencies that account for quasi-static and low-cycle fatigue damage. The investigation showed that a coupler may develop a crack due to accumulated quasi-static and fatigue damage. For damage summation, the dependences of low-cycle stationary stress-controlled load accounting for low-cycle, quasi-static fatigue damage are proposed in view of the variation of the load on the automatic coupler during operation depending on the weight of the rolling stock, velocity, and railway relief. The proposed methodology is applicable to the calculation of other housings under similar loading conditions.https://www.mdpi.com/2076-3417/14/19/9025automatic coupler SA3durabilitylow-cycle fatiguereliabilityresidual service lifesummation of damage |
| spellingShingle | Vaidas Lukoševičius Žilvinas Bazaras Donata Putnaitė Eglė Bazaraitė Damage Analysis of Rolling Stock Automatic Coupler under Cyclic Loads Applied Sciences automatic coupler SA3 durability low-cycle fatigue reliability residual service life summation of damage |
| title | Damage Analysis of Rolling Stock Automatic Coupler under Cyclic Loads |
| title_full | Damage Analysis of Rolling Stock Automatic Coupler under Cyclic Loads |
| title_fullStr | Damage Analysis of Rolling Stock Automatic Coupler under Cyclic Loads |
| title_full_unstemmed | Damage Analysis of Rolling Stock Automatic Coupler under Cyclic Loads |
| title_short | Damage Analysis of Rolling Stock Automatic Coupler under Cyclic Loads |
| title_sort | damage analysis of rolling stock automatic coupler under cyclic loads |
| topic | automatic coupler SA3 durability low-cycle fatigue reliability residual service life summation of damage |
| url | https://www.mdpi.com/2076-3417/14/19/9025 |
| work_keys_str_mv | AT vaidaslukosevicius damageanalysisofrollingstockautomaticcouplerundercyclicloads AT zilvinasbazaras damageanalysisofrollingstockautomaticcouplerundercyclicloads AT donataputnaite damageanalysisofrollingstockautomaticcouplerundercyclicloads AT eglebazaraite damageanalysisofrollingstockautomaticcouplerundercyclicloads |