| 疏浚绞刀切削土壤的数值模拟 |
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| 引用本文： | 张德义,倪福生.疏浚绞刀切削土壤的数值模拟[J].水运工程,2017(7):68-72. |
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| 作者姓名： | 张德义 倪福生 |
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| 作者单位： | 江苏科技大学 机电与动力工程学院，江苏 张家港 215600；河海大学 疏浚技术教育部工程研究中心，江苏 常州 213022,河海大学 疏浚技术教育部工程研究中心，江苏 常州 213022 |
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| 摘 要： | 基于有限元FEM法研究绞刀切削土壤过程。参数化建立绞刀模型,对绞刀进行模态分析,分析不同阶数下的固有频率及振幅,为绞刀加工提供依据;采用LS-DYNA模拟绞刀切削土壤的过程,选取MAT147为土壤材料模型,研究不同时刻的土壤切削形态,将得到的切削阻力与理论结果对比,验证数值模拟的可靠性。
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| 关 键 词： | 切削土壤 绞刀模型 数值模拟，切削阻力 FEM |
Numerical simulation of dredge cutter cutting soil |
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| ZHANG De-yi and NI Fu-sheng.Numerical simulation of dredge cutter cutting soil[J].Port & Waterway Engineering,2017(7):68-72. |
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| Authors: | ZHANG De-yi and NI Fu-sheng |
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| Institution: | School of Mechatronic and Power Engineering,Jiangsu University of Science and Technology ,Zhangjiagang 215600,China;Engineering Research Center of Dredging Technology of Ministry of Education,Hohai University,Changzhou 213022,China and Engineering Research Center of Dredging Technology of Ministry of Education,Hohai University,Changzhou 213022,China |
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| Abstract: | This paper analyzes the cutter cutting soil process based on the finite element method(FEM).Cutter parameterized model is set up,and modal analysis is carried on.The amplitude is obtained under different order natural frequency,which provides the reference for cutter manufacturing.LS-DYNA is used to simulate the process of the cutter cutting soil,and MAT147 model is selected for soil materials.Different time cutting form of the soil is researched,and the simulated cutting resistance is compared with theoretical results,which verifies the reliability of numerical simulation. |
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