齿板啮合连接强度影响因素研究
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摘要
对铝合金齿板啮合连接强度及影响因素进行了实验研究与有限元分析。研究结果表明:当齿数较少时,齿板啮合连接强度随着齿数的增多而近似线性增大,当齿数较多时,随着齿数增加,齿板啮合连接强度增大趋势渐缓;齿板啮合连接强度随着齿高或齿宽的增大而近似线性增大,同时,随着螺栓预紧力的增大,齿板啮合连接强度呈现先增大后减小的趋势,因此,实际工程中需选择合适的螺栓预紧力,以提高结构连接强度。
The joint strength and the impact factors in terms of the serrated plate connectors were researched through experiments and FEM analyses. The results indicate that for the less amount of teeth, the joint strength increases almost linearly with the rise of the tooth number. However, for the large amount of teeth, the joint strength augments slowly. Besides, the joint strength raises nearly linearly with the increases of tooth heights as well as the tooth widths. With the increasing pretension forces, the joint strength tends towards augmenting initially and then deteriorates, which implies that the proper pretension force should be selected to improve the joint strength in practical engineering.
The joint strength and the impact factors in terms of the serrated plate connectors were researched through experiments and FEM analyses. The results indicate that for the less amount of teeth, the joint strength increases almost linearly with the rise of the tooth number. However, for the large amount of teeth, the joint strength augments slowly. Besides, the joint strength raises nearly linearly with the increases of tooth heights as well as the tooth widths. With the increasing pretension forces, the joint strength tends towards augmenting initially and then deteriorates, which implies that the proper pretension force should be selected to improve the joint strength in practical engineering.
引文
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[3]徐龙星,程营,陈立,等.拉压状态下预紧力齿连接接头承载力和剪应力分布规律研究[J].玻璃钢/复合材料,2015,42(6):23-28.XU Longxing,CHENG Ying,CHEN Li,et al.Research on Bearing Capacity and Shear Stress Distribution of Composite Pre-tightened Teeth Connection in Tension and Compression[J].Fiber Reinforced Plastics/Composites,2015,42(6):23-28.
[4]高建岗,刘鹏飞,赵启林,等.复合材料预紧力齿连接件剪切疲劳实验研究[J].玻璃钢/复合材料,2015,42(8):25-30.GAO Jiangang,LIU Pengfei,ZHAO Qilin,et al.Experimental Study on Shear Fatigue Performance of Composite Pre-tightening Tooth Connector[J].Fiber Reinforced Plastics/Composites,2015,42(8):25-30.
[5]孙建,刘亚文,高一峰,等.钢齿齿长变化对复合材料预紧力齿连接接头力学性能影响的实验研究[J].中国机械工程,2017,28(9):1101-1105.SUN Jian,LIU Yawen,GAO Yifeng,et al.Experimental Research on Mechanics Properties of Composite Pre-tightened Teeth Connection Based on Length Changes of Steel Teeth[J].China Mechanical Engineering,2017,28(9):1101-1105.
[6]山本晃.螺纹连接的理论与计算[M].上海:上海科技文献出版社,1984.YAMAMOTO A.The Theory and Calculation of Threaded Connections[M].Shanghai:Shanghai Science and Technology Literature Press,1984.
[7]郭玉瑛.飞机设计手册.第3册,材料[M].北京:航空工业出版社,1997.GUO Yuying.Design Manual of Aircraft(V3:Materials)[M].Beijing:Aviation Industry Press,1997.
[8]KISHI N,AHMED A,YABUKI N,et al.Nonlinear Finite Element Analysis of Topand Seatangle with Double Webangle Connections[J].Structural Engineering&Mechanics,2001,12(2):201-214.
[9]谭申刚.MJ螺纹强度理论与计算[M].西安:西北工业大学出版社,2014.TAN Shengang.Theory and Calculation of MJThread Connection Strength[M].Xi’an:Northwestern Polytechnical University Press,2014.
[10]陈海平,曾攀,方刚,等.螺纹副承载的分布规律[J].机械工程学报,2010,46(9):171-178.CHEN Haiping,ZENG Pan,FANG Gang,et al.Load Distribution of Bolted Joint[J].Journal of Mechanical Engineering,2010,46(9):171-178.
[11]郭寓岷,刘广立,贺贤娟.中厚板高强度螺栓连接性能试验研究[J].钢结构,1997,12(3):43-48.GUO Yumin,LIU Guangli,HE Xianjuan.The Test&Research on Connecting Behavior of High Strength Bolt for Medium Thick Plate[J].Steel Construction,1997,12(3):43-48.