Maintenance program.
<div><p>With the gradual expansion of China’s high-speed railroad operation scale and the accumulation of operation time, the pressure of operation and maintenance of contact networks is increasing, and the operation and maintenance strategy of railroad contact networks under the traditi...
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| مؤلفون آخرون: | , , , |
| منشور في: |
2025
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| _version_ | 1852019717864161280 |
|---|---|
| author | Zhijian Qu (6920060) |
| author2 | Xinyu Liao (6709862) Rui Chi (9749809) Baoquan Wei (21474224) Xinxing Hou (21474227) |
| author2_role | author author author author |
| author_facet | Zhijian Qu (6920060) Xinyu Liao (6709862) Rui Chi (9749809) Baoquan Wei (21474224) Xinxing Hou (21474227) |
| author_role | author |
| dc.creator.none.fl_str_mv | Zhijian Qu (6920060) Xinyu Liao (6709862) Rui Chi (9749809) Baoquan Wei (21474224) Xinxing Hou (21474227) |
| dc.date.none.fl_str_mv | 2025-06-03T17:38:31Z |
| dc.identifier.none.fl_str_mv | 10.1371/journal.pone.0321384.t005 |
| dc.relation.none.fl_str_mv | https://figshare.com/articles/dataset/Maintenance_program_/29227418 |
| dc.rights.none.fl_str_mv | CC BY 4.0 info:eu-repo/semantics/openAccess |
| dc.subject.none.fl_str_mv | Medicine Sociology Computational Biology Space Science Biological Sciences not elsewhere classified Information Systems not elsewhere classified remaining useful life inferior solution sets 029 thousand yuan objective optimization algorithm traditional maintenance method southern china yielded maintenance scheme obtained maintenance method generated maintaining higher reliability objective maintenance optimization contact networks system spending 71 man maintenance strategy mentioned integrated state parameters div >< p objective optimization operation railroad contact networks low maintenance efficiency low maintenance cost high average reliability high labor intensity contact networks maintenance strategy average reliability labor intensity optimization goal high reliability railroad bureau maintenance solutions maintenance personnel maintenance cost contact force china ’ initial reliability labor productivity transportation quality speed railroads simulation calculations required man pareto non operation time hanging strings guide height gradual expansion etc </ double dilemma |
| dc.title.none.fl_str_mv | Maintenance program. |
| dc.type.none.fl_str_mv | Dataset info:eu-repo/semantics/publishedVersion dataset |
| description | <div><p>With the gradual expansion of China’s high-speed railroad operation scale and the accumulation of operation time, the pressure of operation and maintenance of contact networks is increasing, and the operation and maintenance strategy of railroad contact networks under the traditional cyclic maintenance mode has the double dilemma of low maintenance efficiency and high labor intensity of maintenance personnel. In order to protect the transportation quality and efficiency of high-speed railroads and reduce the labor intensity of maintenance personnel, this paper proposes a multi-objective optimization operation and maintenance strategy for contact networks considering integrated state parameters, which is able to ensure the high reliability of contact networks while reducing the cost of maintenance and reducing the man-hours required for maintenance. Firstly, according to the integrated state parameters such as the guide height, contact force, pull-out value, and remaining useful life (RUL) of contact networks, the state of contact networks near specific towers is analyzed, revealing the initial reliability of the main equipment including contact wires, positioners, hanging strings, <i>etc</i>., which is used as a parameter of the multi-objective optimal maintenance model. Then, a multi-objective optimal maintenance model is established to achieve the optimization goal of high average reliability of contact networks, low maintenance cost and short required working hours. Finally, the model is solved by the multi-objective optimization algorithm to obtain a series of maintenance solutions in the form of Pareto non-inferior solution sets. Simulation calculations with data from a railroad bureau in southern China yielded that the average reliability of the contact networks system was 0.969, and the maintenance cost was 1,029 thousand yuan, spending 71 man-hours, when the maintenance method generated by the operation and maintenance strategy mentioned in this paper was used. Compared with the traditional maintenance method, the maintenance scheme obtained by the proposed in this paper optimizes the required man-hours and improves the labor productivity while maintaining higher reliability and lowering the maintenance cost.</p></div> |
| eu_rights_str_mv | openAccess |
| id | Manara_f2d0ec5f16c2a5c4e0870bacff2f5c07 |
| identifier_str_mv | 10.1371/journal.pone.0321384.t005 |
| network_acronym_str | Manara |
| network_name_str | ManaraRepo |
| oai_identifier_str | oai:figshare.com:article/29227418 |
| publishDate | 2025 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | CC BY 4.0 |
| spelling | Maintenance program.Zhijian Qu (6920060)Xinyu Liao (6709862)Rui Chi (9749809)Baoquan Wei (21474224)Xinxing Hou (21474227)MedicineSociologyComputational BiologySpace ScienceBiological Sciences not elsewhere classifiedInformation Systems not elsewhere classifiedremaining useful lifeinferior solution sets029 thousand yuanobjective optimization algorithmtraditional maintenance methodsouthern china yieldedmaintenance scheme obtainedmaintenance method generatedmaintaining higher reliabilityobjective maintenance optimizationcontact networks systemspending 71 manmaintenance strategy mentionedintegrated state parametersdiv >< pobjective optimization operationrailroad contact networkslow maintenance efficiencylow maintenance costhigh average reliabilityhigh labor intensitycontact networksmaintenance strategyaverage reliabilitylabor intensityoptimization goalhigh reliabilityrailroad bureaumaintenance solutionsmaintenance personnelmaintenance costcontact forcechina ’initial reliabilitylabor productivitytransportation qualityspeed railroadssimulation calculationsrequired manpareto nonoperation timehanging stringsguide heightgradual expansionetc </double dilemma<div><p>With the gradual expansion of China’s high-speed railroad operation scale and the accumulation of operation time, the pressure of operation and maintenance of contact networks is increasing, and the operation and maintenance strategy of railroad contact networks under the traditional cyclic maintenance mode has the double dilemma of low maintenance efficiency and high labor intensity of maintenance personnel. In order to protect the transportation quality and efficiency of high-speed railroads and reduce the labor intensity of maintenance personnel, this paper proposes a multi-objective optimization operation and maintenance strategy for contact networks considering integrated state parameters, which is able to ensure the high reliability of contact networks while reducing the cost of maintenance and reducing the man-hours required for maintenance. Firstly, according to the integrated state parameters such as the guide height, contact force, pull-out value, and remaining useful life (RUL) of contact networks, the state of contact networks near specific towers is analyzed, revealing the initial reliability of the main equipment including contact wires, positioners, hanging strings, <i>etc</i>., which is used as a parameter of the multi-objective optimal maintenance model. Then, a multi-objective optimal maintenance model is established to achieve the optimization goal of high average reliability of contact networks, low maintenance cost and short required working hours. Finally, the model is solved by the multi-objective optimization algorithm to obtain a series of maintenance solutions in the form of Pareto non-inferior solution sets. Simulation calculations with data from a railroad bureau in southern China yielded that the average reliability of the contact networks system was 0.969, and the maintenance cost was 1,029 thousand yuan, spending 71 man-hours, when the maintenance method generated by the operation and maintenance strategy mentioned in this paper was used. Compared with the traditional maintenance method, the maintenance scheme obtained by the proposed in this paper optimizes the required man-hours and improves the labor productivity while maintaining higher reliability and lowering the maintenance cost.</p></div>2025-06-03T17:38:31ZDatasetinfo:eu-repo/semantics/publishedVersiondataset10.1371/journal.pone.0321384.t005https://figshare.com/articles/dataset/Maintenance_program_/29227418CC BY 4.0info:eu-repo/semantics/openAccessoai:figshare.com:article/292274182025-06-03T17:38:31Z |
| spellingShingle | Maintenance program. Zhijian Qu (6920060) Medicine Sociology Computational Biology Space Science Biological Sciences not elsewhere classified Information Systems not elsewhere classified remaining useful life inferior solution sets 029 thousand yuan objective optimization algorithm traditional maintenance method southern china yielded maintenance scheme obtained maintenance method generated maintaining higher reliability objective maintenance optimization contact networks system spending 71 man maintenance strategy mentioned integrated state parameters div >< p objective optimization operation railroad contact networks low maintenance efficiency low maintenance cost high average reliability high labor intensity contact networks maintenance strategy average reliability labor intensity optimization goal high reliability railroad bureau maintenance solutions maintenance personnel maintenance cost contact force china ’ initial reliability labor productivity transportation quality speed railroads simulation calculations required man pareto non operation time hanging strings guide height gradual expansion etc </ double dilemma |
| status_str | publishedVersion |
| title | Maintenance program. |
| title_full | Maintenance program. |
| title_fullStr | Maintenance program. |
| title_full_unstemmed | Maintenance program. |
| title_short | Maintenance program. |
| title_sort | Maintenance program. |
| topic | Medicine Sociology Computational Biology Space Science Biological Sciences not elsewhere classified Information Systems not elsewhere classified remaining useful life inferior solution sets 029 thousand yuan objective optimization algorithm traditional maintenance method southern china yielded maintenance scheme obtained maintenance method generated maintaining higher reliability objective maintenance optimization contact networks system spending 71 man maintenance strategy mentioned integrated state parameters div >< p objective optimization operation railroad contact networks low maintenance efficiency low maintenance cost high average reliability high labor intensity contact networks maintenance strategy average reliability labor intensity optimization goal high reliability railroad bureau maintenance solutions maintenance personnel maintenance cost contact force china ’ initial reliability labor productivity transportation quality speed railroads simulation calculations required man pareto non operation time hanging strings guide height gradual expansion etc </ double dilemma |