Research concerning thermal stress of bandages on block braking in case of braking stop

Dungan L. I., Ionel I., Dungan M., Iacobescu F.

6th WSEAS International Conference on CELLULAR and MOLECULAR BIOLOGY, BIOPHYSICS and BIOENGINEERING/8th WSEAS International Conference on ENVIRONMENT, ECOSYSTEMS and DEVELOPMENT/International Conference on Bioscience and Bioinformatics, Athens, Yunanistan, 29 - 31 Aralık 2010, ss.168-169 identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Basıldığı Şehir: Athens
  • Basıldığı Ülke: Yunanistan
  • Sayfa Sayıları: ss.168-169
  • İstanbul Teknik Üniversitesi Adresli: Hayır

Özet

During operation of electric locomotives there is the possibility of wheel spinning on the discs bandages. The main cause leading to rotating bandages is their thermal request during braking failure of locomotive while operation. Kinetic energy in the locomotive braking is converted into heat that is transmitted to the bandage. Because of overloading of the bandaged wheels the phenomena of bandages weakening combined with tread defects appears. This danger exists especially when train brakes on long slopes and with high gradients. The aim of the paper is to determine by calculation the maximum temperature incurred during braking so as to tread depth and tire, both for new and for used bandages for the case of stopping when breaking.