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首页> 外文期刊>Journal of aerospace engineering >Development and Validation of Analytical Model for Stiffness Analysis of Curvic Coupling in Tightening
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Development and Validation of Analytical Model for Stiffness Analysis of Curvic Coupling in Tightening

机译：拧紧弯管刚度分析模型的建立与验证

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摘要

Curvic couplings are extensively used in aerospace machinery, such as helicopters, aeroengines, or other aircraft. In this paper, the behavior of bolted joints with curvic couplings is investigated to determine a method to describe the relationship between the stiffness parameters and the geometry of the parts of curvic coupling and external loads. The validity of the method is proven through experiments and finite-element simulation. Additionally, the study investigates the effects of the curvic height, curvic width, curvic thickness, pressure angle of curvic surface, and friction coefficient of curvic surfaces on the stiffness of disc parts. The analytical results show that the compression stiffness of both the curvic and ring parts of the disc has a relationship with the curvic rotation. Although the curvic compression stiffness tends to be constant in the bolt-tightening process for different curvic geometrical dimensions, the compression stiffness of the other disc parts has obvious differences owing to the various curvic geometrical parameters. By choosing appropriate pressure angles of the curvic surface or number, the stiffness of the curvic coupling can be kept stable in the bolt tightening course. The stiffness parameters of curvic couplings can be determined by the analytical model, regardless of how the geometry of the parts of curvic couplings or the external loads are changed.
机译：弯形联轴器广泛用于航空机械，例如直升机，航空发动机或其他飞机。本文研究了具有曲线联轴节的螺栓接头的性能，以确定一种描述刚度参数与曲线联轴节零件的几何形状和外部载荷之间关系的方法。通过实验和有限元仿真证明了该方法的有效性。此外，该研究还研究了曲线高度，曲线宽度，曲线厚度，曲线表面的压力角以及曲线表面的摩擦系数对椎间盘零件刚度的影响。分析结果表明，椎间盘的弯曲部分和环形部分的压缩刚度均与弯曲部分的旋转有关。尽管对于不同的曲线几何尺寸，在螺栓拧紧过程中曲线的压缩刚度趋于恒定，但由于各种曲线几何参数，其他椎间盘部件的压缩刚度具有明显的差异。通过选择适当的曲线表面压力角或曲线数，可以在螺栓拧紧过程中保持曲线联轴器的刚度稳定。曲线联轴器的刚度参数可以通过分析模型确定，而不管曲线联轴器零件的几何形状或外部载荷如何变化。

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  • 来源
    《Journal of aerospace engineering》 |2014年第4期|04014012.1-04014012.14|共14页
  • 作者

    Xiangjun Jiang; Yongsheng Zhu; Jun Hong; Youyun Zhang;

  • 作者单位

    16th Institute of the Ninth Academy, China Aerospace Science and Technology Corporation, Xi'an, Shaanxi 710100, PRC;

    Key Laboratory of Education Ministry for Modern Design and Rotor-Bearing System, Xi'an Jiaotong Univ., Xi'an, Shaanxi 710049, PRC;

    State Key Laboratory for Manufacturing System, Xi'an Jiaotong Univ., Xi'an, Shaanxi 710049, PRC;

    Key Laboratory of Education Ministry for Modern Design and Rotor-Bearing System, Xi'an Jiaotong Univ., Xi'an, Shaanxi 710049, PRC;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Bolted joints; Curvic coupling; Analytical model; Stiffness;

    机译：螺栓连接;弯管耦合分析模型;刚性;

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