Open AccessClearance optimization of radial bearings for multi-bearing shafting system
Author(s) -
Yue Liu,
Mao Ming,
Zhen Tian,
Zhang Xin
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/892/1/012096
Subject(s) - bearing (navigation) , deflection (physics) , structural engineering , computer science , engineering , control theory (sociology) , artificial intelligence , physics , control (management) , optics
There will be a huge difference of fatigue life among the bearings mounted on the shaft for multi-bearing shafting system without designing operating clearance. A unique method for multi-shafting system is presented to optimize operating clearance through selecting proper internal clearance class and designing tolerance of fitting shaft on the basis of thermal conditions and system deflection. An example illustrates that the minimum value of fatigue life calculated by ISO/TR 16281 among radial bearings for multi-bearing shafting system has improved 4.2 times greater than original design through the method mentioned in this paper. It is proved that this method has great advantages on accuracy and convergence, significantly improving the minimum fatigue life among bearings of multi-bearing shafting system.