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高速无刷直流电机无传感器控制
  • ISSN号：1001-6848
  • 期刊名称：微电机
  • 时间：2014.5.28
  • 页码：31-35
  • 分类：TH132[机械工程—机械制造及自动化]
  • 作者机构：[1]湖北工业大学湖北省农业机械工程研究设计院,湖北武汉430068
  • 相关基金：国家自然科学基金资助项目（51235005）
  • 相关项目：高性能数字制造装备的基础研究
作者： 李小清|骆传旺|沈祖英|余淼|
关键词： 大型压机, 强度, 刚度, 预紧力, 有限元, forging press , strength , stiffness , pre-tightening force , FEM
中文摘要：

螺栓预紧力对大型压机的使用稳定性具有决定性作用，针对某大型压机使用过程中出现机架松动现象，建立大型压机机架有限元模型，得到机架的垂直刚度与角刚度。根据预紧力压缩变形量应不少于偏心载荷的等效力与力矩产生的侧隙量，计算出等效载荷系数，结合有限元预紧力接触模型得到预紧力大小，进而确定预紧螺母旋进量，为指导设备设计及检修提供理论依据。

英文摘要：

Bolt preloaded force has played important stability role in the operation stability of a large pressure machine, with a large loose frame phenomenon appeared in the process of pressure machine, the finite element model is established and the vertical stiffness and frame angle stiffness are got. According to the preloaded force compression deformation should be not less than the lateral clearance quantity produced by efficacy and torque of eccentric loading, the equivalent load coefficient is cal- culated, based on the finite element preloaded force contact model, the preloaded force size is got, the quantity rotated into the nut is determined, the theory basis is provided for the equipment design guidance and maintenance.

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期刊信息
  • 《微电机》
  • 中国科技核心期刊
  • 主管单位:西安微电机研究所
  • 主办单位:西安微电机研究所
  • 主编：闵林
  • 地址：西安桃园西路2号
  • 邮编：710077
  • 邮箱：micromotors@vip.sina.com
  • 电话：029-84276641-801/802/803
  • 国际标准刊号：ISSN：1001-6848
  • 国内统一刊号：ISSN：61-1126/TM
  • 邮发代号:52-92
  • 获奖情况:
  • 国家机械工业局优秀期刊,陕西省优秀期刊,中国科学引文数据库来源期刊
  • 国内外数据库收录:
  • 美国剑桥科学文摘,中国中国科技核心期刊,中国北大核心期刊（2004版）,中国北大核心期刊（2008版）,中国北大核心期刊（2011版）
  • 被引量:7230