Open AccessDesign of Shaft Respecting the Fatigue Limit for Ultra-High Number of Cycles
Author(s) -
Otakar Bokůvka,
Michal Jambor,
Slavomír Hrček,
Ján Šteininger,
Libor Trško
Publication year - 2018
Publication title -
periodica polytechnica. transportation engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.388
H-Index - 15
eISSN - 1587-3811
pISSN - 0303-7800
DOI - 10.3311/pptr.11562
Subject(s) - limit (mathematics) , fatigue limit , structural engineering , fatigue testing , engineering , mechanical engineering , computer science , automotive engineering , mathematics , mathematical analysis
Advances in engineering solutions in recent few decades caused that conventional fatigue limit (for steels and cast irons given for number of 107 cycles) is no more sufficient. Construction parts of newly introduced transport vehicles, operating at high velocities and at long distances, reach during their lifetime very high numbers of loading cycles, in order of 109. For this reason, values of fatigue limits for 109 cycles must be considered in design and construction of transport vehicles. In this study, authors present how dramatically will change the design of shaft, when fatigue limit for 109 cycles is considered.