Dynamic analysis and finite element analysis of air compressor crankshaft based on ADAMS and NX-NASTRAN
Using Virtual Prototyping Technology ( VPT) and Finite Element Method ( FEM) ,a virtual prototype of crankshaft and link mechanism of air compressor is built by Pro/E,ADAMS and NX software. Meanwhile the dynamic simulation and finite ele-ment analysis of crankshaft and link mechanism are carried on. According to the movement simulation of crank connecting rod mechanism by ADAMS software,force distribution of the crankshaft crank rod journal is mainly got. Then stress and strain analy-ses are carried out by NX-NASTRA software to get the result that the crankpin fillet with link arm of crankshaft is prone to stress concentration,and alternating stress of air compressor crankshaft which are produced in cyclic conditions also affect fatigue life of the crankshaft. It is of great importance for increasing the fatigue life of the crankshaft,as well as providing reliable conditions for the next step for strengthening crankshaft fillet rolling process.
air compressor crankshaftdynamics simulationFinite Element Analysis ( FEA)
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