| 船舶肋骨冷弯中旁弯的有限元模拟分析研究 |
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| 引用本文： | 安雷,胡勇.船舶肋骨冷弯中旁弯的有限元模拟分析研究[J].船海工程,2011,40(3):40-43. |
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| 作者姓名： | 安雷 胡勇 |
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| 作者单位： | 武汉理工大学交通学院,武汉,430063 |
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| 摘 要： | 以船舶肋骨使用的角钢为对象,采用ANSYS/LS-DYNA模拟其弯曲加工过程中旁弯大小与弯曲曲率的关系。利用船用角钢冷弯加工过程的分析模型,模拟角钢正弯、反弯过程中变形情况,并用实验验证模拟结果的可靠性。模拟结果表明:在一定曲率范围内,旁弯有随着曲率增大而增大的趋势;正弯实验中的角钢旁弯大小与模拟的旁弯大小比较接近;反弯实验中的旁弯变形与腹板起皱情况与模拟情况相似。说明用数值模拟的方法分析旁弯的变化是可行的。
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| 关 键 词： | 船舶 肋骨 旁弯 有限元法 ANSYS/LS-DYNA |
FE Simulation and Analysis of Ship Frames Vertical-bending in Cold-bending Processing |
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| Authors: | AN Lei HU Yong |
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| Institution: | AN Lei,HU Yong (School of Transportation,Wuhan University of Technology,Wuhan 430063,China) |
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| Abstract: | Taking the angle bar as research object,the relationship between the curvature and the vertical-bending magnitude during cold-bending process was analyzed by Ansys/LS-Dyna.An analytical model based on elastic-plastic finite element method was established to simulate the outward-bending and concave-bending process.The simulation results showed that the magnitude of vertical-bending increases while curvature increases within a certain curvature;during outward-bending experiment,the magnitude of vertical-bendi... |
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| Keywords: | ship frame vertical-bending FEM Ansys/LS-Dyna |
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