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摘要：
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液压机用液压缸是高压容器,对应力十分敏感,局部应力过高往往导致其过早损坏。本文以复合形法为优化算法,用FORTRAN语言编制有限元和优化计算程序,采用四边形单元自动划分网格并利用AutoCAD软件实现有限元前、后处理的可视化。通过优化实现合理匹配液压缸的主要几何参数,使液压缸满足强度要求的同时重量减轻;选择适当的法兰过渡形线,减小局部应力集中,使液压缸的局部应力状态得到改善。通过与厚壁筒理论计算结果进行对比,验证了软件的可靠性。
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Hydraulic cylinder for hydraulic press is very sensitive to stress as a high pressure vessel. Local high stress always causes damage beforehand. The complex method was adopted as its optimizing arithmetic.The FEM and optimization programme were compiled with FORTRAN language.Quadrangle element was used in automatic mesh. Visualization of preceding and behind disposal were realized on AutoCAD software platform. Having optimized structural parameters, the lower weight cylinder could be got under intensity limit.By selecting optimized flange transitional curve, the stress concentration was reduced. The computation results from this programme were compared to those from theoretical formula to verify the reliability of this software.
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基金项目：
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作者简介：
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参考文献：
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[1]俞新陆.液压机的设计与应用[M].北京:机械工业出版社,2007.
[2]陆萍,宋可总,刘军红.ANSYS通用软件包在液压缸结构设计中的应用[J].锻压机械,2002,(6):58-59.
[3]何强.法兰支承液压缸法兰区过渡形线的研究[D].重庆:重庆大学,2007.
[4]赵升吨,王军,白振岳,等.法兰支承液压缸结构的遗传算法优化设计[J].锻压技术,2008,33(2):95-98.
[5]杨丽华,李森,白桦,等.综合应用数字化设计技术实现液压缸缸体优化设计[J].信息时代,2008,(3):44-46.
[6]王兰.液压缸的计算机辅助设计系统[D].秦皇岛:燕山大学,2001.
[7]王兰,郭宝锋,金淼,等.液压机用液压缸的计算机辅助设计[J].锻压装备与制造技术,2003,(4):60-63.
[8]李任君.关于四边形有限元网格生成算法的研究[D].长春:吉林大学,2008.
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