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摘要：
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减轻重量和缩小体积一直都是重型模锻液压机设计的关键问题。根据自然界的橄榄结构，设计完成一种新式100 MN橄榄式钢丝缠绕模锻液压机。提出一种新的大型液压机捆绑结构设计理念，并给出缠绕层参数的设计方法；结合有限元法对新式液压机的结构特性进行仿真分析；通过现场加载实验，完成液压机关键部位实际变形量与仿真变形量的对比分析。研究结果表明：新型橄榄式捆绑结构设计在提高液压机可靠性的同时，可有效减少其重量和体积；预应力数值计算方法可作为钢丝缠绕层参数的设计依据，同样也适用于传统缠绕技术；在工作状态下，新型橄榄式缠绕液压机结构可满足强度设计要求；在相同工作压力下，梁体伸长量的实验实测数值略大于仿真值，活塞杆伸出长度实测数值也较仿真结果偏大。
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Weight reduction and volume reduction have always been the key problems in the design of heavy die forging hydraulic press. Therefore, based on the olivary structure in natural world, a new type of 100 MN olivary die forging hydraulic press with steel wire winding was designed. Then, a new design concept of binding structure for large hydraulic press was proposed, and the design method of winding layer parameters was presented. Furthermore, the structural characteristics of new hydraulic press were simulated and analyzed by FEM, and the comparison analysis on the actual and simulated deformation amounts for the key parts of hydraulic press was completed by on-line loading tests. The results show that the design of new olivary binding structure effectively reduces the weight and volume of hydraulic press while improving its reliability, and the numerical calculation method of prestress can be used as the basis for the parameters design of steel wire winding layer, which is also suitable for the traditional winding technology. In the working state, the structure of new olivary winding hydraulic press meets the strength design requirements. Meanwhile, under the same working pressure, the measured value of test for beam elongation is slightly larger than the simulation value, and the measured value of the extension length of piston rod is also larger than the simulated result.
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基金项目：
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浙江省宁波市“3315”计划重点资助项目（20162076）；宁波市重大科技攻关项目（2018B10010，2019B10075）
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作者简介：
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陈罡（1974-），男，博士，教授，E-mail：bastarcg@163.com；通讯作者：李文龙（1960-），男，博士，教授，E-mail：wli@nb-ais.com
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参考文献：
|
[1]林峰，颜永年，吴任东，等.现代重型模锻液压机的关键技术[J].机械工程学报，2006，42(3):9-14.
Lin F, Yan Y N, Wu R D, et al.Key technologies of modern heavy die forging press[J].Chinese Journal of Mechanical Engineering，2006, 42(3): 9-14.
[2]郑文达，权晓惠，李俊辉.锻造液压机的现状及其展望[J].重型机械，2012，(3):2-10.
Zheng W D, Quan X H, Li J H.Development history and trend of forging hydraulic press[J].Heavy Machinery, 2012, (3): 2-10.
[3]A.Φ.别洛夫.水压机模锻[M].靳辅安，译.北京：国防工业出版社，1981.
Belov A F.Hydraulic Press Forging[M].Translated by Jin F A. Beijing：National Defence Industry Press, 1981.
[4]林峰，颜永年，吴任东，等.重型模锻液压机承载结构的发展[J].锻压装备与制造技术，2007，42(5):27-31.
Lin F, Yan Y N, Wu R D, et al.The development of bearing structure in heavy die forging hydraulic press[J].China Metalforming Equipment & Manufacturing Technology, 2007, 42(5):27-31.
[5]何文斌，贺绍台，都金光，等.400 MN钢丝缠绕模锻液压机机架动态性能研究[J].锻压技术，2019,44(2):112-119.
He W B, He S T, Du J G, et al.Research on dynamic performance of steel wire wound frame for 400 MN hydraulic mold forging press[J].Forging & Stamping Technology, 2019,44(2):112-119.
[6]李斌，李谨，姚新改，等.基于ANSYS WorkBench的预应力钢丝缠绕机架的应力分析[J].中国农机化学报，2016，37(5)：58-61.
Li B, Li J, Yao X G, et al.Stress analysis of prestressed steel wire wound frame based on ANSYS WorkBench[J].Journal of Chinese Agricultural Mechanization, 2016, 37(5):58-61.
[7]彭俊斌，颜永年，张人佶，等.机械结构预应力坎合连接的原理[J].清华大学学报:自然科学版，2007，47(8):1274-1277.
Peng J B, Yan Y N, Zhang R J, et al.Pre-stressed bumpy ridge joining method for mechanical structures[J].Journal of Tsinghua University:Science and Technology, 2007, 47(8):1274-1277.
[8]彭俊斌，颜永年，张人佶，等.预应力钢丝缠绕机架坎合梁的整体性分析[J].机械工程学报，2008，44(12)：308-313.
Peng J B, Yan Y N, Zhang R J, et al.Integrity analysis of bumpy-ridge beam in the pre-stressed wire winded framework[J].Journal of Mechanical Engineering, 2008, 44(12):308-313.
[9]何文斌，曾攀，林峰，等.钢丝缠绕重型模锻液压机坎合结构的疲劳和寿命预测[J].机械工程学报，2015，51(8)：29-36.
He W B, Zeng P, Lin F, et al.Fatigue life prediction of the bumpy ridge joining of the heavy die forging press with steel wire wound[J].Journal of Mechanical Engineering, 2015, 51(8):29-36.
[10]张浩然，颜永年，张人佶，等.重型装备剖分-坎合技术的研究进展及其应用[J].工程设计学报,2009,16(5)：322-325,334.
Zhang H R, Yan Y N, Zhang R J, et al.Research advancement on bumpy-ridge technology applied to heavy equipment[J].Chinese Journal of Engineering Design, 2009, 16(5):322-325,334.
[11]颜永年，刘长勇，张磊，等.坎合技术与航空模锻液压机[J].航空制造技术，2010，(8)：26-28.
Yan Y N, Liu C Y, Zhang L, et al.Can joint technology and aero die forging hydraulic press[J].Aeronautical Manufacturing Technology, 2010, (8):26-28.
[12]刘海霞，颜永年，曾攀，等.钢丝缠绕拱梁立柱全剖分——坎合机架[J].机械工程学报，2011，47(4)：82-87.
Liu H X, Yan Y N, Zeng P, et al.Pillar and arched girder totally bumpy ridge joining frame with steel wire wound[J].Journal of Mechanical Engineering, 2011, 47(4):82-87.
[13]崔琨喨.800 MN模锻液压机机架疲劳试验研究[D].秦皇岛：燕山大学，2013.
Cui K L.Study on Frame Fatigue Experiment of 800 MN Die Forging Hydraulic Press[D].Qinhuangdao: Yanshan University, 2013.
[14]Galanakis C M.Olive fruit dietary fiber: Components, recovery and applications[J].Trends in Food Science & Technology, 2010, 22(4):175-184.
[15]俞新陆.锻压手册[M].第3版.北京：机械工业出版社，2007.
Yu X L.Forging Manual [M].The 3rd Edition.Beijing: China Machine Press, 2007.
[16]何文斌，曾攀，赵加清，等.重型液压机机架变形的数字图像相关测量与降温法有限元模拟[J].机械工程学报，2015，51(18)：34-41.
He W B, Zeng P, Zhao J Q, et al.Deformation measurement based on digital image correlation and finite element analysis based on cooling method of heavy hydraulic press frame[J].Journal of Mechanical Engineering, 2015, 51(18):34-41.
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