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Uporaba neporušnih metod pri preizkušanju podvozij železniških vozil = [Use the nondestructive testing for control of railway bogie] : magisterij
Jemec, Viktor
V nalogi smo prikazali problematiko neporušne kontrole in navedli neporušne metode, ki se uporabljajo na slovenskih železnicah. Na osnovi literature smo obdelali vrste ultrazvočnih signalov in zanje ...izdelali teoretišne izračune ultrazvočnih poti za gred serije 342/362. Izdelali smo posebne, pod ustreznim kotom usmerjene normalne ultrazvočne sonde, ki so vgrajene v posebnem držalu zaradi ohranjanja stalne lege sond. Z elektrodinamičnimi sondami smo ugotovili karakteristike ultrazvočnih glav, ki so prikazane v diagarmih. Na vagonski kolesni dvojici smo izvedli meritve z akustično emisijo. Izdelan je računalniški program, ki na osnovi vnesene oblike gredi izračuna teoretične poti ultrazvočnega valovanja in jih prikaže v obliki ehografa, ki je identičen onemu na ultrazvočnem aparatu. Na osnovi statistike in primerjanja z dejanskimi posnetimi signali, ki so zahtevali preureditev obstoječe opreme, dobimo odgovor, ali je neka utrujenostna razpoka v gredi podstavnega vozička testirane lokomotive ali vagona še sposobna za varen železniški promet.
Type of material - master's thesis
Publication and manufacture - Ljubljana : [V. Jemec], 1993
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