Zbornik radova Koridor 10 - Kirilo SaviÄ

More documents

Recommendations

Info

3rd International Scientific and Professional Conference CORRIDOR 10 - a sustainable way of integrations REFERENCES [1] Popović, Z., Brajović, Lj., Lazarević, L., Puzavac, L.: Rail Defects Head Checking – Phenomenon and Treatment, Proceedings EURO – ZEL, University of Žilina in collaboration with CETRA - Centre for Transport Research, Žilina SK, 2012. [2] Grohmann, H.D.: Beschädigungsarten an der Schiene verursacht durch den Betrieb, Internationales Symposium Schienenfehler, Interdisziplinärer Forschungsverbund Bahntechnik Fachhochschule Brandenburg Technische Universität Berlin, Brandenburg, 2000.Railway applications – Electromagnetic compatibility - Part 3-1: Rolling stock - Train and complete vehicle EN 50121-3-1:2006 [3] Center for Strategic & International studies and Hellenic Centre for European Studies. Relinking the Western Balkans - The transportation dimension. Athens, 2010. [4] European Commission: Technical Specification for Interoperability – Subsystem Infrastructure, Official Journal of the European Communities, 2011, p.68.Railway applications – Electromagnetic compatibility - Part 4: Emission and immunity of the signalling and telecommunications apparatus EN 50121-4:2006 [5] Australian Rail Track Corporation: Rail Defects Handbook, Engineering Practices Manual Civil Engineering, 2006. [6] European Commission: Final report on Root Causes of Problem Conditions and Priorities for Innovation, Project no. TIP5-CT-2006-031415 INNOTRACK, 2009. [7] Dollevoet, R.P.B.J.: Design of an Anti Head checking profile based on stress relief, PhD Thesis, University of Twente, 2010. [8] UIC - International Union of Railways: Recommendations for the use of rail steel grades – UIC Code 721, Paris, 2005. Belgrade, 2012 237
3rd International Scientific and Professional Conference CORRIDOR 10 - a sustainable way of integrations RAIL INSPECTION BY EDDY CURRENT METHOD Popovic Zdenka, Faculty of Civil Engineering of the University in Belgrade, Belgrade, Serbia Brajović Ljiljana, Faculty of Civil Engineering of the University in Belgrade, Belgrade, Serbia Lazarević Luka, Faculty of Civil Engineering of the University in Belgrade, Belgrade, Serbia Abstract Management of rail defects includes appropriate methods for their detection and monitoring their growth under conditions of undisturbed traffic flow. This paper points out the importance of early detection of the rail defects for the effective rail defects management. Early detection of rail defects can minimize track maintenance cost and improve rail traffic safety. The extensive research and development in highly sensitive eddy current sensors and instruments over the last sixty years indicates that eddy current testing is currently a widely used inspection technique. This paper presents the possibility of applying the eddy current testing for the detection of subsurface rail cracks (which are not observed by visual inspection), surface cracks and rail roughness (which is not visually observed). In conclusion, the authors recommend combining several non-destructive testing methods for efficient rail testing: visual inspection, ultrasound testing and eddy current testing. Key words : Railway, rails, rail defects, inspection, eddy current testing, maintenance. INSPEKCIJA ŠINA METODOM VRTLOŽNIH STRUJA Apstrakt Upravljanje šinskim defektima uključuje odgovarajuće metode za njihovu detekciju i praćenje napredovanja u uslovima neometanog odvijanja železničkog saobraćaja. Ovaj rad ukazuje na značaj ranog otkrivanja defekata za efikasno upravljanje njihovim razvojem. Rano detektovanje šinskih defekata smanjuje troškove održavanja i unapređuje bezbednost železničkog saobraćaja. Obimna istaživanja, razvoj osetljivih senzora i uređaja za ispitivanje pomoću vrtložnih struja tokom poslednjih šest decenija omogućila su praktičnu primenu metode ispitivanja pomoću vrtložnih struja. Ovaj rad prikazuje mogućnosti primene metode ispitivanja šinskog čelika pomoću vrtložnih struja u detekciji površinskih šinskih defekata. Za efikasno upravljenje šinskim defektima, u zaključku rada autori preporučuju kombinovanje više nedestruktivnih metoda: vizuelnu inspekciju, ispitivanje ultrazvukom i vrtložnim strujama. Ključne reči : Železnica, šine, šinski defekti, inspekcija, vrtložne struje, održavanje. 1. UVOD Šine su neizostavan i skup element konstrukcije koloseka. Njihova uloga je višestruka. One obezbeđuju površ po kojoj se kotrljaju točkovi železničkog vozila, vode i usmeravaju točkove, prihvataju i prenose opterećenja od točkova, prenose sile kočenja i pokretanja vozila, kao i podužne sile od temperaturnih promena, provode povratne i signalne struje. Porast brzina, osovinskog i saobraćajnog opterećenja na prugama doprinosi skraćenju životnog veka šine u koloseku. Jedan od najčešćih uzroka skraćenja životnog veka šina je zamor šinskog čelika. Nepravilno održavanje šina u uslovima izraženog zamora šinskog čelika može da skrati životni vek na Belgrade, 2012 238
Page 1 and 2:
3rd International Scientific and Pr
Page 3 and 4:
Page 5 and 6:
Page 7 and 8:
Page 9 and 10:
Page 11 and 12:
Page 13 and 14:
Page 15 and 16:
Page 17 and 18:
Page 19 and 20:
Page 21 and 22:
Page 23 and 24:
Page 25 and 26:
Page 27 and 28:
Page 29 and 30:
Page 31 and 32:
Page 33 and 34:
Page 35 and 36:
Page 37 and 38:
Page 39 and 40:
Page 41 and 42:
Page 43 and 44:
Page 45 and 46:
Page 47 and 48:
Page 49 and 50:
Page 51 and 52:
Page 53 and 54:
Page 55 and 56:
Page 57 and 58:
Page 59 and 60:
Page 61 and 62:
Page 63 and 64:
Page 65 and 66:
Page 67 and 68:
Page 69 and 70:
Page 71 and 72:
Page 73 and 74:
Page 75 and 76:
Page 77 and 78:
Page 79 and 80:
Page 81 and 82:
Page 83 and 84:
Page 85 and 86:
Page 87 and 88:
Page 89 and 90:
Page 91 and 92:
Page 93 and 94:
Page 95 and 96:
Page 97 and 98:
Page 99 and 100:
Page 101 and 102:
Page 103 and 104:
Page 105 and 106:
Page 107 and 108:
Page 109 and 110:
Page 111 and 112:
Page 113 and 114:
Page 115 and 116:
Page 117 and 118:
Page 119 and 120:
Page 121 and 122:
Page 123 and 124:
Page 125 and 126:
Page 127 and 128:
Page 129 and 130:
Page 131 and 132:
Page 133 and 134:
Page 135 and 136:
Page 137 and 138:
Page 139 and 140:
Page 141 and 142:
Page 143 and 144:
Page 145 and 146:
Page 147 and 148:
Page 149 and 150:
Page 151 and 152:
Page 153 and 154:
Page 155 and 156:
Page 157 and 158:
Page 159 and 160:
Page 161 and 162:
Page 163 and 164:
Page 165 and 166:
Page 167 and 168:
Page 169 and 170:
Page 171 and 172:
Page 173 and 174:
Page 175 and 176:
Page 177 and 178:
Page 179 and 180:
Page 181 and 182:
Page 183 and 184:
Page 185 and 186:
Page 187 and 188:
Page 189 and 190:
Page 191 and 192:
Page 193 and 194:
Page 195 and 196: 3rd International Scientific and Pr
Page 245: 3rd International Scientific and Pr
Page 297 and 298:
Page 299 and 300:
Page 301 and 302:
Page 303 and 304:
Page 305 and 306:
R [m] V [km/h] n n [mm] 3rd Interna
Page 307 and 308:
QNx [%] QNx [%] 3rd International S
Page 309 and 310:
Page 311 and 312:
Page 313 and 314:
Page 315 and 316:
Page 317 and 318:
Page 319 and 320:
Page 321 and 322:
Page 323 and 324:
Page 325:
show all

Zbornik radova Koridor 10 - Kirilo SaviÄ

Create successful ePaper yourself

Delete template?

Save as template?

Zbornik radova Koridor 10 - Kirilo SaviÄ