Research on Axial Stiffness of Multi-layer Bellows Based on ANSYS
The effect of the friction coefficient of multilayer corrugated pipes on their axial stiffness was studied in ANSYS.At the same time,the equivalent thickness value of a single layer of the multilayer corrugated pipe was determined,and the axial stiffness values obtained from the single-layer corrugated pipe model were compared with actual measurement results.The calcu-lation results indicate that when the friction coefficient is set to 0.15,the error in the axial stiffness value obtained from the multi-layer corrugated pipe simulation is minimized at 5.6%.The axial stiffness error using the single-layer equivalent thickness method is 4.4%.This demonstrates that the error in the results obtained by the single-layer equivalent thickness method is smaller.This study confirms the feasibility of the single-layer equivalent thickness method and provides reference for obtaining the axial stiffness value of corrugated pipes.
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