1. 西安交通大学机械工程学院,西安,710049
2. 西安交通大学机械结构强度与振动国家重点实验室,西安,710049
网络首发:2016-05-10,
纸质出版:2016
移动端阅览
夏凯 1, 孙岩桦 1, 2, 等. 轴向拉紧的圆弧端齿轴段扭转特性研究[J]. 西安交通大学学报, 2016,50(5):51-56.
Torsional Characteristics of Axial Fastened Shaft Section with Curvic Couplings[J]. 2016, 50(5): 51-56.
夏凯 1, 孙岩桦 1, 2, 等. 轴向拉紧的圆弧端齿轴段扭转特性研究[J]. 西安交通大学学报, 2016,50(5):51-56. DOI: 10.7652/xjtuxb201605008.
Torsional Characteristics of Axial Fastened Shaft Section with Curvic Couplings[J]. 2016, 50(5): 51-56. DOI: 10.7652/xjtuxb201605008.
为了研究轴向拉紧的圆弧端齿轴段的扭转特性
提出了圆弧端齿轴段传扭特性的分段线性模型
给出了分段线性转折点处扭矩的估计值
同时建立了轴向预紧圆弧端齿轴段三维有限元模型
采用数值计算对理论分析进行了验证。此外
通过数值计算求得圆弧端齿轴段的双线性扭转刚度
并进一步研究了预应力、摩擦系数等参数对圆弧端齿扭转特性的影响。研究结果表明:圆弧端齿结构具有典型的软弹簧双线性扭转特性
预应力对圆弧端齿的传扭特性有影响且存在预紧饱和现象; 预紧饱和后
圆弧端齿双线性刚度基本不受预应力的影响
分段线性转折点扭矩则与预应力成正比; 摩擦系数对圆弧端齿双线性刚度的起始段刚度基本无影响
仅对线性特性的第二段刚度有影响
扭转刚度随摩擦系数的增大而增大。研究结果对工程应用中端齿连接的设计及重型燃气轮机转子动力学分析具有参考价值。
To reveal the torsional characteristics of axial fastened shaft with curvic couplings
a piecewise linear torsional deformation model for the shaft section with curvic couplings is proposed
and the torque at the turning point is estimated. Additionally
a 3-D finite element model for the axial pre-tightened shaft section with curvic couplings is created to validate the theoretical analysis. The bilinear torsional stiffness is obtained by numerical analysis
and the effects of prestress and friction coefficient on torsional behaviors are discussed. The results show that the shaft section with curvic couplings has typical bilinear torsional characteristic of soft spring
the prestress affects torsional behaviors
and there exists a preload saturation. In the saturated preload state
the bilinear torsional stiffness has almost no relation with prestress
and the torque at the turning point gets proportional to the prestress. Moreover
the friction coefficient exerts almost no effect on the primary bilinear torsional stiffness
but heightens the secondary one.
GREENWOOD J A, WILLIAMSON J B P. Contact of nominally flat surfaces [J]. Proceedings of the Royal society of London: Series A, 1966, 295: 300-319.
YUAN Shuxia, ZHANG Youyun, ZHU Yongsheng, et al. Study on the equivalent stiffness of heavy-duty gas turbines composite rotor with curvic couplings and spindle tie-bolts [C]∥Proceedings of ASME Power Conference. New York, USA: ASME, 2011: 1-10.
MAJUMDAR A, BHUSHAN B. Fractal model of elastic-plastic contact between rough surfaces [J]. ASME Journal of Tribology, 1991, 113(1): 1-11.
李辉光, 刘恒, 虞烈. 粗糙机械结合面的接触刚度研究 [J]. 西安交通大学学报, 2011, 45(6): 69-74.
LI Huiguang, LIU Heng, YU Lie. Contacts tiffness of rough mechanical joint surface [J]. Journal of Xi'an Jiaotong University, 2011, 45(6): 69-74.
饶柱石, 夏松波, 汪光明. 粗糙平面接触接触刚度的研究 [J]. 机械强度, 1994, 12(2): 72-76.
RAO Zhushi, XIA Songbo, WANG Guangming. A study of contact stiffness of flat rough surface [J]. Journal of Mechanical Strength, 1994, 12(2): 72-76.
尹泽勇, 欧圆霞, 李彦, 等. 端齿轴段刚度及其对转子动力学特性的影响 [J]. 振动工程学报, 1993, 6(1): 63-67.
YIN Zeyong, OU Yuanxia, LI Yan, et al. Stiffness of a shaft section with curvic couplings and its effect on dynamic characteristic of a rotor [J]. Journal of Vibration Engineering, 1993, 6(1): 63-67.
尹泽勇, 欧园霞, 胡柏安, 等. 端齿连接及变轴力的影响 [J]. 航空动力学报, 1994, 9(2): 129-132.
YIN Zeyong, OU Yuanxia, HU Bo'an, et al. Rotor with curvic couplings and the influence of variable axial force [J]. Journal of Aerospace Power, 1994, 9(2): 129-132.
尹泽勇, 胡柏安, 吴建国, 等. 端齿连接转子轴向预紧力的确定 [J]. 航空动力学报, 1996, 9(2): 355-357.
YIN Zeyong, HU Bo'an, WU Jianguo, et al. Determination of axial preloads of rotor with curvic couplings [J]. Journal of Aerospace Power, 1996, 9(2): 355-357.
LIU Xin, YUAN Qi, LIU Yang, et al. Analysis of the stiffness of Hirth couplings in rod-fastened rotors based on experimental model parameter identification [C]∥Proceedings of ASME Turbo Expo. New York, USA: ASME, 2014: 1-10.
李浦, 袁奇, 高进, 等. 轮盘端面齿连接的周向拉杆转子刚度研究 [J]. 航空动力学报, 2013, 28(7): 1618-1623.
LI Pu, YUAN Qi, GAO Jin, et al. Investigation on stiffness of circumferential distributed tie-rod rotor with curvic couplings of trochal disk [J]. Journal of Aerospace Power, 2013, 28(7): 1618-1623.
刘雨薇,张卫正,叶福浩.单个微凸体接触过程中的闪点温度研究.2016,50(3):90-93.[doi:10.7652/xjtuxb201603014]
刘香浪,张英杰,李云龙,等.面向低碳制造的切削液供给系统优化研究.2016,50(2):91-97.[doi:10.7652/xjtuxb201602 016]
刘雅琳,上官博,徐自力.干摩擦阻尼对失谐叶盘系统受迫振动的影响.2016,50(2):111-117.[doi:10.7652/xjtuxb201602 019]
蒲伟,王家序,杨荣松,等.重载下准双曲面齿轮传动界面润滑机理分析.2015,49(11):55-61.[doi:10.7652/xjtuxb2015 11010]
0
浏览量
4
下载量
2
CSCD
关联资源
相关文章
相关作者
相关机构
京公网安备11010802024621