基于子模型法对TBM刀盘的结构强度分析

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英文篇名：Structural Strength Analysis of TBM Cutter-Head Based on Sub-Model Method 作者：刘本学 ; 栗良玉 ; 蔺超云 ; 李冬梅 英文作者：LIU Ben-xue;LI Liang-yu;LIN Chao-yun;LI Dong-mei;School of Mechanical Engineering,Zhengzhou University;Department of Automotive Engineering,Tangshan Vocational and Technical College; 关键词：TBM刀盘 ; 子模型法 ; 结构强度分析 ; 有限元 ; 局部优化 英文关键词：TBM Cutter-Head;;Sub-Model Method;;Structural Strength Analysis;;Finite Element;;Local Optimization 中文刊名：JSYZ 英文刊名：Machinery Design & Manufacture 机构：郑州大学机械工程学院;唐山工业职业技术学院汽车工程系; 出版日期：2019-01-08 出版单位：机械设计与制造 年：2019 期：No.335 基金：国家青年科学基金项目(11402234) 语种：中文; 页：JSYZ201901050 页数：4 CN：01 ISSN：21-1140/TH 分类号：197-200

摘要

刀盘是隧道掘进机(TBM)开挖岩石的核心部件,其由于整体尺寸大,刀柄安装位置倒角小,一般有限元整体分析很难获得该位置的准确应力,也就无法确定估算设计结构的强度和可靠性。因此,为解决由于TBM刀盘整体尺寸大、现实条件很难对其进行网格细化和网格质量的保证,而造成的有限元分析时间长、分析精度低等问题,应用子模型法对TBM刀盘进行结构强度分析,通过验证两模型分析结果收敛趋势的一致性和两模型局部优化分析对比,证明了子模型法的可靠性和可行性,也表明了子模型法为刀盘等大型构件的强度分析提供了新的方法,对今后的大型构件有限元分析具有一定的参考意义。
        Cutter-head is the critical component of tunnel boring machine(TBM),because of the large overall size chamfering small handle installation position,the general finite element analysis of whole is difficult to obtain the location of the accurate stress,also won't be able to estimate the strength and reliability of the design structure is determined. therefore,to solve the problem because of the TBM cutter-head size,realistic conditions,it is difficult to carry on the grid refinement and grid quality,caused by the finite element analysis time and low accuracy of analyzing problems,the sub-model method of TBM cutter-head structure strength analysis,by verifying the consistency of the convergence trend of the two models and the local optimization analysis of the two models,proves the feasibility and the reliability of the sub-model method,it also shows that the sub-model provides a new method for the strength analysis of large,finite elements analysis of large structure in the future has a certain reference value.

引文

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