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螺栓拧紧过程中工况对复合材料连接结构夹紧力的影响

蔡跃波 安鲁陵 王楚凡 岳烜德 杨浩然

蔡跃波, 安鲁陵, 王楚凡, 等. 螺栓拧紧过程中工况对复合材料连接结构夹紧力的影响[J]. 复合材料学报, 2022, 39(2): 812-822. doi: 10.13801/j.cnki.fhclxb.20210425.002
引用本文: 蔡跃波, 安鲁陵, 王楚凡, 等. 螺栓拧紧过程中工况对复合材料连接结构夹紧力的影响[J]. 复合材料学报, 2022, 39(2): 812-822. doi: 10.13801/j.cnki.fhclxb.20210425.002
CAI Yuebo, AN Luling, WANG Chufan, et al. Effect of operating conditions on the clamping force of composite material structure during bolt tightening process[J]. Acta Materiae Compositae Sinica, 2022, 39(2): 812-822. doi: 10.13801/j.cnki.fhclxb.20210425.002
Citation: CAI Yuebo, AN Luling, WANG Chufan, et al. Effect of operating conditions on the clamping force of composite material structure during bolt tightening process[J]. Acta Materiae Compositae Sinica, 2022, 39(2): 812-822. doi: 10.13801/j.cnki.fhclxb.20210425.002

螺栓拧紧过程中工况对复合材料连接结构夹紧力的影响

doi: 10.13801/j.cnki.fhclxb.20210425.002
基金项目: 国家自然科学基金(51975280)
详细信息
    通讯作者:

    安鲁陵,博士,教授,博士生导师,研究方向为飞机装配技术  E-mail:anllme@nuaa.edu.cn

  • 中图分类号: TB332

Effect of operating conditions on the clamping force of composite material structure during bolt tightening process

  • 摘要: 针对复合材料结构螺栓连接,拧紧工况的不同会改变端面和螺纹间的摩擦系数,从而影响到扭矩系数,使夹紧力随拧紧力矩变化的趋势十分复杂。首先对螺栓连接过程进行理论分析,得到了夹紧力和复合应力状态下螺栓屈服夹紧力的表达式。然后以某型号螺栓为对象进行试验研究,在规定的目标预紧力下,分别测得了不同润滑条件、垫圈条件和拧紧速度下的拧紧曲线。试验结果表明,在螺栓整个拧紧过程中,不同的润滑条件、垫圈条件和拧紧速度对夹紧力和拧紧力矩曲线的离散度、达到相同大小夹紧力时需要的拧紧力矩、夹紧力随拧紧力矩的变化趋势都有一定程度的影响。通过上述工况下螺栓拧紧中的夹紧力研究,可为复合材料构件螺栓连接结构及拧紧工艺设计的精准化提供一定参考和依据。

     

  • 图  1  大小垫圈和螺母法兰尺寸的对比

    Figure  1.  Dimensions’ comparison of washers and nut flange

    图  2  试验材料

    Figure  2.  Test materials

    图  3  碳纤维增强环氧树脂基复合材料板的形状和尺寸图

    Figure  3.  Shape and size diagram of carbon fiber reinforced epoxy composite plate

    图  4  Schatz-Analyse多功能螺栓紧固分析系统

    Figure  4.  Schatz-Analyse multifunctional bolting analysis system

    图  5  不同润滑条件下的夹紧力和拧紧力矩曲线

    Figure  5.  Curves of clamping force and tightening torque under different lubrication conditions

    图  6  不同润滑条件下的扭矩系数和夹紧力曲线

    Figure  6.  Curves of torque coefficient and clamping force under different lubrication conditions

    图  7  不同润滑条件下的端面摩擦系数和夹紧力曲线

    Figure  7.  Curves of bearing surface friction coefficient and clamping force under different lubrication conditions

    图  8  不同润滑条件下的螺纹间摩擦系数和夹紧力曲线

    Figure  8.  Curves of thread friction coefficient and clamping force under different lubrication conditions

    图  9  不同垫圈条件下螺栓的夹紧力和拧紧力矩曲线

    Figure  9.  Curves of bolt clamping force and tightening torque under different washer conditions

    图  10  不同垫圈条件下螺栓的扭矩系数和夹紧力曲线

    Figure  10.  Curves of bolt torque coefficient and clamping force under different washer conditions

    图  11  不同垫圈条件下的螺栓端面摩擦系数和夹紧力曲线

    Figure  11.  Curves of bolt bearing surface friction coefficient and clamping force under different washer conditions

    图  12  不同垫圈条件下的螺纹间摩擦系数和夹紧力曲线

    Figure  12.  Curves of thread friction coefficient and clamping force under different washer conditions

    图  13  碳纤维增强环氧树脂基复合材料板孔周的表面形貌

    Figure  13.  Surface topographies around the hole of carbon fiber reinforced epoxy composite plate

    图  14  不同拧紧速度下螺栓的夹紧力和拧紧力矩曲线

    Figure  14.  Curves of bolt clamping force and tightening torque under different tightening speeds

    图  15  不同拧紧速度下螺栓的扭矩系数和夹紧力曲线

    Figure  15.  Curves of bolt torque coefficient and clamping force under different tightening speeds

    图  16  不同拧紧速度下螺栓的端面摩擦系数和夹紧力曲线

    Figure  16.  Curves of bolt bearing surface friction coefficient and clamping force under different tightening speeds

    图  17  不同拧紧速度下的螺纹摩擦系数和夹紧力曲线

    Figure  17.  Curves of thread friction coefficient and clamping force under different tightening speeds

    表  1  试验组别

    Table  1.   Test group

    NumberSpeed/(r·min−1)WasherLubrication
    1 10 Small Dry
    2 10 Small Oil
    3 10 Small MoS2
    4 10 No Dry
    5 10 Large Dry
    6 100 Small MoS2
    7 200 Small MoS2
    下载: 导出CSV

    表  2  三种垫圈条件下的等效摩擦直径对比

    Table  2.   Comparison of equivalent friction diameters for three washer conditions

    Washer conditionSmallNoLarge
    Equivalent friction diameter/mm9.4848.67311.276
    下载: 导出CSV
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出版历程
  • 收稿日期:  2021-03-09
  • 修回日期:  2021-04-11
  • 录用日期:  2021-04-15
  • 网络出版日期:  2021-04-25
  • 刊出日期:  2022-02-01

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