Numerical Analysis of Shear Force on Lower-Cut Multi-Link Type Oblique Edge Cross-Section Shear
Aiming at solving the shear force problem of lower-cut multi-link type oblique edge cross-section shear,a numerical model was established by using the finite element method.The shear experiment was carried out with the assembled material,and the numerical solution was compared with the experimental solution and the literature solution,and the results of the three were in good agreement with each other,which verified the rationality of the numerical solution model.Under different strip thickness,h,gap of shear blades,Δ,an-gle of shear blade,tanα,shear cylinder extension velocity,v,and upper and lower shear edge wear,ω,distribution law of shear force of cross-section shear was summarized and analyzed.The results indicate that the influence of lower shear edge wear on shear force's distri-bution is greater than that of upper shear edge wear,when cutting thickness is6mm,the best gap of shear blades is(0.4±0.1)mm,the an-gle of shear blade for optimization can be set as 1/25,shear cylinder extension velocity is desirable for(300±50)mm/s.Meanwhile,some numerical calculation values are compared with the experimental values and manual calculation values which shows that the values fit preferably.Some suggestions on design,selection,electrical debugging and practical application of cross-section shear were put forward.
Lower-Cut Multi-Link Type Oblique Edge Cross-Section ShearShear Blade WearGap of Shear BladesShear ForceNumerical Analysis
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