Open AccessFinite Element Analysis of Misalignment and Contact State on the Interface of Bearing Bore Under Preload Condition
Author(s) -
Zhaohang Meng,
Wei Ma,
Ping Zhou,
Zhenyu Zhang,
Ze Ding
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1748/6/062049
Subject(s) - finite element method , bearing (navigation) , main bearing , cylinder block , crankcase , structural engineering , deformation (meteorology) , engineering , cylinder , diesel engine , interface (matter) , contact mechanics , torque , mechanical engineering , materials science , crankshaft , composite material , automotive engineering , computer science , physics , capillary number , artificial intelligence , capillary action , thermodynamics , internal combustion engine
The split bearing bores of diesel engine are generally bored after tightening bolts to install crankcase and cylinder block. Machining accuracy significantly affects the contact state during sliding bearing operation, thereby reducing the service life of bearing. For effectively suppressing misalignment of interface caused by deformation of bearing bore, this paper presents finite element model and experimental measurement. The theoretical analysis and numerical calculation of interface are carried out in this paper. The finite element models of bearing bore and interface between crankcase and cylinder block are established to quantitatively analyze the deformation characteristic and contact state. The results indicate that the contact pressure of interface increases gradually with increase of the pre-tightening torque. The sliding distance of interface is positively correlated with the contact pressure of interface. Furthermore, the direction and value of the principal stress are calculated by measuring the strain of nodes around the bearing bore. Differential forces on both sides of bearing bore lead to joint surface sliding. Finite element simulation results are compared with experimental results to verify the finite element model.