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K problematice podélné dynamiky souprav nákladních vlaků

Author: Jaroš, Pavel; Kalinčák, Daniel; Michálek, Tomáš
Publisher: VTS pri Žilinskej univerzite 2020-03-19T12:25:39Z 2020-03-19T12:25:39Z 2019
Edition/Format:   Downloadable archival material : Czech
Summary:
Zejména v souvislosti s plánovanou rozsáhlou výlukovou činností na trati 1. tranzitního železničního koridoru mezi Brnem a Českou Třebovou v blízké budoucnosti vyvstane otázka zajištění vozby nákladních vlaků na sklonově náročnějších tratích. To s sebou nese mimo jiné tlak na možné zvýšení limitu dovoleného namáhání spřáhel, které je dnes v podmínkách SŽDC předpisově
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Genre/Form: ConferenceObject
Document Type: Archival Material
All Authors / Contributors: Jaroš, Pavel; Kalinčák, Daniel; Michálek, Tomáš
OCLC Number: 1182629468
Language Note: Czech
Notes: p. 259-266
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Other Titles: On the problems of longitudinal dynamics of freight trains

Abstract:

Zejména v souvislosti s plánovanou rozsáhlou výlukovou činností na trati 1. tranzitního železničního koridoru mezi Brnem a Českou Třebovou v blízké budoucnosti vyvstane otázka zajištění vozby nákladních vlaků na sklonově náročnějších tratích. To s sebou nese mimo jiné tlak na možné zvýšení limitu dovoleného namáhání spřáhel, které je dnes v podmínkách SŽDC předpisově omezeno na 350 kN. Otázka dovoleného namáhání spřáhel ovšem zdaleka nesouvisí jen se statickou tažnou silou, kterou mohou hnací vozidla v čele vlaku vyvíjet, ale je potřeba uvažovat také dynamické děje, ke kterým v provozu může zejména v soupravách dlouhých nákladních vlaků docházet. Tento příspěvek se proto zabývá právě problematikou podélné dynamiky souprav nákladních vlaků s cílem identifikovat kritické situace z hlediska namáhání spřahovacího a narážecího ústrojí mezi vozidly v soupravě. V příspěvku jsou prezentovány vybrané výsledky simulačních výpočtů, jež byly realizovány pomocí vlastního simulačního nástroje, který byl vytvořen v rámci řešení bakalářské práce na Dopravní fakultě Jana Pernera (DFJP) Univerzity Pardubice. Vytvořený výpočtový model včetně definice základních vstupů je v příspěvku rovněž popsán; prezentované závěry lze považovat za první etapu vyšetřování projevů podélné dynamiky vlakových souprav na DFJP.

Especially in relation with scheduled closure of traffic in the track section Brno–Česká Třebová of the 1st Czech transit railway corridor due to modernization works in near future, a question of ensuring of operation of freight trains on tracks with unfavourable gradients is going to be highly up-to-date. This problem is related to an effort to increase the limit of permissible forces in coupling device which is limited by the value of 350 kN in the conditions of the Czech railway infrastructure manager “SŽDC” nowadays. However, the question of permissible forces acting in coupling device is not related only with the allowed traction force of locomotives in the head of train; it is necessary to pay the attention to the dynamic effects which can occur especially in the trainsets of long freight trains, as well. Therefore, this paper deals with problems of longitudinal dynamics of freight trains and it is focused on identification of critical situations in operation of the trains from the point of view of straining of coupling device between individual vehicles. Selected simulation results are presented in the paper; these simulations were performed by means of original simulation tool which was created for these purposes in framework of a bachelor thesis at the Faculty of Transport Engineering of the University of Pardubice. The computational model including definition of basic input data is described in this contribution, too. The presented results can be considered as a first stage of investigation of effects of longitudinal dynamics of freight trains at the Faculty of Transport Engineering.

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Primary Entity<\/h3>\n
<http:\/\/www.worldcat.org\/oclc\/1182629468<\/a>> # K problematice pod\u00E9ln\u00E9 dynamiky souprav n\u00E1kladn\u00EDch vlak\u016F<\/span>\n\u00A0\u00A0\u00A0\u00A0a \nschema:CreativeWork<\/a>, library:ArchiveMaterial<\/a>, schema:MediaObject<\/a> ;\u00A0\u00A0\u00A0\nlibrary:oclcnum<\/a> \"1182629468<\/span>\" ;\u00A0\u00A0\u00A0\nschema:about<\/a> <http:\/\/experiment.worldcat.org\/entity\/work\/data\/10397367793#Thing\/simulacni_vypocty<\/a>> ; # simula\u010Dn\u00ED v\u00FDpo\u010Dty<\/span>\n\u00A0\u00A0\u00A0\nschema:about<\/a> <http:\/\/experiment.worldcat.org\/entity\/work\/data\/10397367793#Thing\/freight_train<\/a>> ; # freight train<\/span>\n\u00A0\u00A0\u00A0\nschema:about<\/a> <http:\/\/experiment.worldcat.org\/entity\/work\/data\/10397367793#Thing\/train_braking<\/a>> ; # train braking<\/span>\n\u00A0\u00A0\u00A0\nschema:about<\/a> <http:\/\/experiment.worldcat.org\/entity\/work\/data\/10397367793#Thing\/brzdeni_vlaku<\/a>> ; # brzd\u011Bn\u00ED vlaku<\/span>\n\u00A0\u00A0\u00A0\nschema:about<\/a> <http:\/\/experiment.worldcat.org\/entity\/work\/data\/10397367793#Thing\/namahani_sprahovaciho_a_narazeciho_ustroji<\/a>> ; # nam\u00E1h\u00E1n\u00ED sp\u0159\u00E1hovac\u00EDho a nar\u00E1\u017Eec\u00EDho \u00FAstroj\u00ED<\/span>\n\u00A0\u00A0\u00A0\nschema:about<\/a> <http:\/\/experiment.worldcat.org\/entity\/work\/data\/10397367793#Thing\/longitudinal_dynamics<\/a>> ; # longitudinal dynamics<\/span>\n\u00A0\u00A0\u00A0\nschema:about<\/a> <http:\/\/experiment.worldcat.org\/entity\/work\/data\/10397367793#Thing\/simulations<\/a>> ; # simulations<\/span>\n\u00A0\u00A0\u00A0\nschema:about<\/a> <http:\/\/experiment.worldcat.org\/entity\/work\/data\/10397367793#Thing\/nakladni_vlak<\/a>> ; # n\u00E1kladn\u00ED vlak<\/span>\n\u00A0\u00A0\u00A0\nschema:about<\/a> <http:\/\/experiment.worldcat.org\/entity\/work\/data\/10397367793#Thing\/podelna_dynamika<\/a>> ; # pod\u00E9ln\u00E1 dynamika<\/span>\n\u00A0\u00A0\u00A0\nschema:about<\/a> <http:\/\/experiment.worldcat.org\/entity\/work\/data\/10397367793#Thing\/straining_of_coupling_device_and_buffers<\/a>> ; # straining of coupling device and buffers<\/span>\n\u00A0\u00A0\u00A0\nschema:alternateName<\/a> \"On the problems of longitudinal dynamics of freight trains<\/span>\" ;\u00A0\u00A0\u00A0\nschema:creator<\/a> <http:\/\/experiment.worldcat.org\/entity\/work\/data\/10397367793#Agent\/michalek_tomas<\/a>> ; # Mich\u00E1lek, Tom\u00E1\u0161<\/span>\n\u00A0\u00A0\u00A0\nschema:creator<\/a> <http:\/\/experiment.worldcat.org\/entity\/work\/data\/10397367793#Agent\/jaros_pavel<\/a>> ; # Jaro\u0161, Pavel<\/span>\n\u00A0\u00A0\u00A0\nschema:creator<\/a> <http:\/\/experiment.worldcat.org\/entity\/work\/data\/10397367793#Agent\/kalincak_daniel<\/a>> ; # Kalin\u010D\u00E1k, Daniel<\/span>\n\u00A0\u00A0\u00A0\nschema:datePublished<\/a> \"2019<\/span>\" ;\u00A0\u00A0\u00A0\nschema:datePublished<\/a> \"2020<\/span>\" ;\u00A0\u00A0\u00A0\nschema:datePublished<\/a> \"2020\/03\/19T12:25:39Z<\/span>\" ;\u00A0\u00A0\u00A0\nschema:description<\/a> \"Zejm\u00E9na v souvislosti s pl\u00E1novanou rozs\u00E1hlou v\u00FDlukovou \u010Dinnost\u00ED na trati 1. tranzitn\u00EDho \u017Eelezni\u010Dn\u00EDho koridoru mezi Brnem a \u010Ceskou T\u0159ebovou v bl\u00EDzk\u00E9 budoucnosti vyvstane ot\u00E1zka zaji\u0161t\u011Bn\u00ED vozby n\u00E1kladn\u00EDch vlak\u016F na sklonov\u011B n\u00E1ro\u010Dn\u011Bj\u0161\u00EDch trat\u00EDch. To s sebou nese mimo jin\u00E9 tlak na mo\u017En\u00E9 zv\u00FD\u0161en\u00ED limitu dovolen\u00E9ho nam\u00E1h\u00E1n\u00ED sp\u0159\u00E1hel, kter\u00E9 je dnes v podm\u00EDnk\u00E1ch S\u017DDC p\u0159edpisov\u011B omezeno na 350 kN. Ot\u00E1zka dovolen\u00E9ho nam\u00E1h\u00E1n\u00ED sp\u0159\u00E1hel ov\u0161em zdaleka nesouvis\u00ED jen se statickou ta\u017Enou silou, kterou mohou hnac\u00ED vozidla v \u010Dele vlaku vyv\u00EDjet, ale je pot\u0159eba uva\u017Eovat tak\u00E9 dynamick\u00E9 d\u011Bje, ke kter\u00FDm v provozu m\u016F\u017Ee zejm\u00E9na v souprav\u00E1ch dlouh\u00FDch n\u00E1kladn\u00EDch vlak\u016F doch\u00E1zet. Tento p\u0159\u00EDsp\u011Bvek se proto zab\u00FDv\u00E1 pr\u00E1v\u011B problematikou pod\u00E9ln\u00E9 dynamiky souprav n\u00E1kladn\u00EDch vlak\u016F s c\u00EDlem identifikovat kritick\u00E9 situace z hlediska nam\u00E1h\u00E1n\u00ED sp\u0159ahovac\u00EDho a nar\u00E1\u017Eec\u00EDho \u00FAstroj\u00ED mezi vozidly v souprav\u011B. V p\u0159\u00EDsp\u011Bvku jsou prezentov\u00E1ny vybran\u00E9 v\u00FDsledky simula\u010Dn\u00EDch v\u00FDpo\u010Dt\u016F, je\u017E byly realizov\u00E1ny pomoc\u00ED vlastn\u00EDho simula\u010Dn\u00EDho n\u00E1stroje, kter\u00FD byl vytvo\u0159en v r\u00E1mci \u0159e\u0161en\u00ED bakal\u00E1\u0159sk\u00E9 pr\u00E1ce na Dopravn\u00ED fakult\u011B Jana Pernera (DFJP) Univerzity Pardubice. Vytvo\u0159en\u00FD v\u00FDpo\u010Dtov\u00FD model v\u010Detn\u011B definice z\u00E1kladn\u00EDch vstup\u016F je v p\u0159\u00EDsp\u011Bvku rovn\u011B\u017E pops\u00E1n; prezentovan\u00E9 z\u00E1v\u011Bry lze pova\u017Eovat za prvn\u00ED etapu vy\u0161et\u0159ov\u00E1n\u00ED projev\u016F pod\u00E9ln\u00E9 dynamiky vlakov\u00FDch souprav na DFJP.<\/span>\" ;\u00A0\u00A0\u00A0\nschema:description<\/a> \"Especially in relation with scheduled closure of traffic in the track section Brno\u2013\u010Cesk\u00E1 T\u0159ebov\u00E1 of the 1st Czech transit railway corridor due to modernization works in near future, a question of ensuring of operation of freight trains on tracks with unfavourable gradients is going to be highly up-to-date. This problem is related to an effort to increase the limit of permissible forces in coupling device which is limited by the value of 350 kN in the conditions of the Czech railway infrastructure manager \u201CS\u017DDC\u201D nowadays. However, the question of permissible forces acting in coupling device is not related only with the allowed traction force of locomotives in the head of train; it is necessary to pay the attention to the dynamic effects which can occur especially in the trainsets of long freight trains, as well. Therefore, this paper deals with problems of longitudinal dynamics of freight trains and it is focused on identification of critical situations in operation of the trains from the point of view of straining of coupling device between individual vehicles. Selected simulation results are presented in the paper; these simulations were performed by means of original simulation tool which was created for these purposes in framework of a bachelor thesis at the Faculty of Transport Engineering of the University of Pardubice. The computational model including definition of basic input data is described in this contribution, too. The presented results can be considered as a first stage of investigation of effects of longitudinal dynamics of freight trains at the Faculty of Transport Engineering.<\/span>\" ;\u00A0\u00A0\u00A0\nschema:exampleOfWork<\/a> <http:\/\/worldcat.org\/entity\/work\/id\/10397367793<\/a>> ;\u00A0\u00A0\u00A0\nschema:genre<\/a> \"ConferenceObject<\/span>\" ;\u00A0\u00A0\u00A0\nschema:inLanguage<\/a> \"cs<\/span>\" ;\u00A0\u00A0\u00A0\nschema:name<\/a> \"K problematice pod\u00E9ln\u00E9 dynamiky souprav n\u00E1kladn\u00EDch vlak\u016F<\/span>\" ;\u00A0\u00A0\u00A0\nschema:productID<\/a> \"1182629468<\/span>\" ;\u00A0\u00A0\u00A0\nschema:publication<\/a> <http:\/\/www.worldcat.org\/title\/-\/oclc\/1182629468#PublicationEvent\/vts_pri_zilinskej_univerzite_2020_03_19t12_25_39z_2020_03_19t12_25_39z_2019<\/a>> ;\u00A0\u00A0\u00A0\nschema:publisher<\/a> <http:\/\/experiment.worldcat.org\/entity\/work\/data\/10397367793#Agent\/vts_pri_zilinskej_univerzite<\/a>> ; # VTS pri \u017Dilinskej univerzite<\/span>\n\u00A0\u00A0\u00A0\nwdrs:describedby<\/a> <http:\/\/www.worldcat.org\/title\/-\/oclc\/1182629468<\/a>> ;\u00A0\u00A0\u00A0\u00A0.\n\n\n<\/div>\n\n

Related Entities<\/h3>\n
<http:\/\/experiment.worldcat.org\/entity\/work\/data\/10397367793#Agent\/jaros_pavel<\/a>> # Jaro\u0161, Pavel<\/span>\n\u00A0\u00A0\u00A0\u00A0a \nbgn:Agent<\/a> ;\u00A0\u00A0\u00A0\nschema:name<\/a> \"Jaro\u0161, Pavel<\/span>\" ;\u00A0\u00A0\u00A0\u00A0.\n\n\n<\/div>\n
<http:\/\/experiment.worldcat.org\/entity\/work\/data\/10397367793#Agent\/kalincak_daniel<\/a>> # Kalin\u010D\u00E1k, Daniel<\/span>\n\u00A0\u00A0\u00A0\u00A0a \nbgn:Agent<\/a> ;\u00A0\u00A0\u00A0\nschema:name<\/a> \"Kalin\u010D\u00E1k, Daniel<\/span>\" ;\u00A0\u00A0\u00A0\u00A0.\n\n\n<\/div>\n
<http:\/\/experiment.worldcat.org\/entity\/work\/data\/10397367793#Agent\/michalek_tomas<\/a>> # Mich\u00E1lek, Tom\u00E1\u0161<\/span>\n\u00A0\u00A0\u00A0\u00A0a \nbgn:Agent<\/a> ;\u00A0\u00A0\u00A0\nschema:name<\/a> \"Mich\u00E1lek, Tom\u00E1\u0161<\/span>\" ;\u00A0\u00A0\u00A0\u00A0.\n\n\n<\/div>\n
<http:\/\/experiment.worldcat.org\/entity\/work\/data\/10397367793#Agent\/vts_pri_zilinskej_univerzite<\/a>> # VTS pri \u017Dilinskej univerzite<\/span>\n\u00A0\u00A0\u00A0\u00A0a \nbgn:Agent<\/a> ;\u00A0\u00A0\u00A0\nschema:name<\/a> \"VTS pri \u017Dilinskej univerzite<\/span>\" ;\u00A0\u00A0\u00A0\u00A0.\n\n\n<\/div>\n
<http:\/\/experiment.worldcat.org\/entity\/work\/data\/10397367793#Thing\/brzdeni_vlaku<\/a>> # brzd\u011Bn\u00ED vlaku<\/span>\n\u00A0\u00A0\u00A0\u00A0a \nschema:Thing<\/a> ;\u00A0\u00A0\u00A0\nschema:name<\/a> \"brzd\u011Bn\u00ED vlaku<\/span>\" ;\u00A0\u00A0\u00A0\u00A0.\n\n\n<\/div>\n
<http:\/\/experiment.worldcat.org\/entity\/work\/data\/10397367793#Thing\/freight_train<\/a>> # freight train<\/span>\n\u00A0\u00A0\u00A0\u00A0a \nschema:Thing<\/a> ;\u00A0\u00A0\u00A0\nschema:name<\/a> \"freight train<\/span>\" ;\u00A0\u00A0\u00A0\u00A0.\n\n\n<\/div>\n
<http:\/\/experiment.worldcat.org\/entity\/work\/data\/10397367793#Thing\/longitudinal_dynamics<\/a>> # longitudinal dynamics<\/span>\n\u00A0\u00A0\u00A0\u00A0a \nschema:Thing<\/a> ;\u00A0\u00A0\u00A0\nschema:name<\/a> \"longitudinal dynamics<\/span>\" ;\u00A0\u00A0\u00A0\u00A0.\n\n\n<\/div>\n
<http:\/\/experiment.worldcat.org\/entity\/work\/data\/10397367793#Thing\/nakladni_vlak<\/a>> # n\u00E1kladn\u00ED vlak<\/span>\n\u00A0\u00A0\u00A0\u00A0a \nschema:Thing<\/a> ;\u00A0\u00A0\u00A0\nschema:name<\/a> \"n\u00E1kladn\u00ED vlak<\/span>\" ;\u00A0\u00A0\u00A0\u00A0.\n\n\n<\/div>\n
<http:\/\/experiment.worldcat.org\/entity\/work\/data\/10397367793#Thing\/namahani_sprahovaciho_a_narazeciho_ustroji<\/a>> # nam\u00E1h\u00E1n\u00ED sp\u0159\u00E1hovac\u00EDho a nar\u00E1\u017Eec\u00EDho \u00FAstroj\u00ED<\/span>\n\u00A0\u00A0\u00A0\u00A0a \nschema:Thing<\/a> ;\u00A0\u00A0\u00A0\nschema:name<\/a> \"nam\u00E1h\u00E1n\u00ED sp\u0159\u00E1hovac\u00EDho a nar\u00E1\u017Eec\u00EDho \u00FAstroj\u00ED<\/span>\" ;\u00A0\u00A0\u00A0\u00A0.\n\n\n<\/div>\n
<http:\/\/experiment.worldcat.org\/entity\/work\/data\/10397367793#Thing\/podelna_dynamika<\/a>> # pod\u00E9ln\u00E1 dynamika<\/span>\n\u00A0\u00A0\u00A0\u00A0a \nschema:Thing<\/a> ;\u00A0\u00A0\u00A0\nschema:name<\/a> \"pod\u00E9ln\u00E1 dynamika<\/span>\" ;\u00A0\u00A0\u00A0\u00A0.\n\n\n<\/div>\n
<http:\/\/experiment.worldcat.org\/entity\/work\/data\/10397367793#Thing\/simulacni_vypocty<\/a>> # simula\u010Dn\u00ED v\u00FDpo\u010Dty<\/span>\n\u00A0\u00A0\u00A0\u00A0a \nschema:Thing<\/a> ;\u00A0\u00A0\u00A0\nschema:name<\/a> \"simula\u010Dn\u00ED v\u00FDpo\u010Dty<\/span>\" ;\u00A0\u00A0\u00A0\u00A0.\n\n\n<\/div>\n
<http:\/\/experiment.worldcat.org\/entity\/work\/data\/10397367793#Thing\/simulations<\/a>> # simulations<\/span>\n\u00A0\u00A0\u00A0\u00A0a \nschema:Thing<\/a> ;\u00A0\u00A0\u00A0\nschema:name<\/a> \"simulations<\/span>\" ;\u00A0\u00A0\u00A0\u00A0.\n\n\n<\/div>\n
<http:\/\/experiment.worldcat.org\/entity\/work\/data\/10397367793#Thing\/straining_of_coupling_device_and_buffers<\/a>> # straining of coupling device and buffers<\/span>\n\u00A0\u00A0\u00A0\u00A0a \nschema:Thing<\/a> ;\u00A0\u00A0\u00A0\nschema:name<\/a> \"straining of coupling device and buffers<\/span>\" ;\u00A0\u00A0\u00A0\u00A0.\n\n\n<\/div>\n
<http:\/\/experiment.worldcat.org\/entity\/work\/data\/10397367793#Thing\/train_braking<\/a>> # train braking<\/span>\n\u00A0\u00A0\u00A0\u00A0a \nschema:Thing<\/a> ;\u00A0\u00A0\u00A0\nschema:name<\/a> \"train braking<\/span>\" ;\u00A0\u00A0\u00A0\u00A0.\n\n\n<\/div>\n
<http:\/\/www.worldcat.org\/title\/-\/oclc\/1182629468<\/a>>\u00A0\u00A0\u00A0\u00A0a \ngenont:InformationResource<\/a>, genont:ContentTypeGenericResource<\/a> ;\u00A0\u00A0\u00A0\nschema:about<\/a> <http:\/\/www.worldcat.org\/oclc\/1182629468<\/a>> ; # K problematice pod\u00E9ln\u00E9 dynamiky souprav n\u00E1kladn\u00EDch vlak\u016F<\/span>\n\u00A0\u00A0\u00A0\nschema:dateModified<\/a> \"2020-08-06<\/span>\" ;\u00A0\u00A0\u00A0\nvoid:inDataset<\/a> <http:\/\/purl.oclc.org\/dataset\/WorldCat<\/a>> ;\u00A0\u00A0\u00A0\nvoid:inDataset<\/a> <http:\/\/purl.oclc.org\/dataset\/WorldCat\/DigitalCollectionGateway<\/a>> ;\u00A0\u00A0\u00A0\u00A0.\n\n\n<\/div>\n
<http:\/\/www.worldcat.org\/title\/-\/oclc\/1182629468#PublicationEvent\/vts_pri_zilinskej_univerzite_2020_03_19t12_25_39z_2020_03_19t12_25_39z_2019<\/a>>\u00A0\u00A0\u00A0\u00A0a \nschema:PublicationEvent<\/a> ;\u00A0\u00A0\u00A0\nschema:organizer<\/a> <http:\/\/experiment.worldcat.org\/entity\/work\/data\/10397367793#Agent\/vts_pri_zilinskej_univerzite<\/a>> ; # VTS pri \u017Dilinskej univerzite<\/span>\n\u00A0\u00A0\u00A0\nschema:startDate<\/a> \"2019<\/span>\" ;\u00A0\u00A0\u00A0\nschema:startDate<\/a> \"2020-03-19T12:25:39Z<\/span>\" ;\u00A0\u00A0\u00A0\u00A0.\n\n\n<\/div>\n\n

Content-negotiable representations<\/p>\n