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| Simulation of ridge-buckle control model in coiling process of strip steel |
| GUAN Jian-long1，HE An-rui1，SUN Wen-quan1，GUO Rui2 |
1. Metallurgy Engineering Research Institute， University of Science and Technology Beijing， Beijing 100083，China
2. Sheet-Metal Workshop， Capital Aerospace Machinery Company， Beijing 100076， China） |
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Abstract In order to research the ridge-buckle control method in coiling process of strip steel with local high point， the study obtained the stress field distribution of ridge-buckle based on the hypothesis about stress function and the S. Timoshenko least work principle， and established the buckling critical coiling tension setting model and buckling elastic limit model that both can be calculated online using the theory of Galerkin virtual displacement. The simulation of stress field distribution and factors on critical coiling tension show that uneven distribution of strip steel tension caused by radial accumulation of local high points is the main cause of strip ridge-buckle； critical coiling tension decreases with the increase of the thickness of strip， height of local high points and coiling radius， respectively. The influence of strip width is small. The?computational accuracy and feasibility of this model is confirmed by the comparison of actual production control method and ANSYS finite element method results.
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Received: 20 January 2015
Published: 29 October 2015
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2015, Vol. 50 
