东北大学学报(自然科学版) ›› 2024, Vol. 45 ›› Issue (9): 1268-1276.DOI: 10.12068/j.issn.1005-3026.2024.09.007
• 机械工程 • 上一篇
罗忠1,2,3(), 罗永恒1,2, 熊鑫1,2,3, 吴法勇4
收稿日期:
2023-05-06
出版日期:
2024-09-15
发布日期:
2024-12-16
通讯作者:
罗忠
作者简介:
罗 忠(1978-),男,内蒙古集宁人,东北大学教授,博士生导师.
基金资助:
Zhong LUO1,2,3(), Yong-heng LUO1,2, Xin XIONG1,2,3, Fa-yong WU4
Received:
2023-05-06
Online:
2024-09-15
Published:
2024-12-16
Contact:
Zhong LUO
About author:
LUO Zhong,E-mail:zhluo@mail.neu.edu.摘要:
以航空发动机转子系统中止口螺栓连接结构为研究对象,基于单螺栓连接结构分析弯曲刚度的非线性特征,利用ANSYS实体单元建模方法分析连接结构的弯曲刚度,重点讨论了有无止口连接、预紧力、螺栓直径、止口过盈量等装配工艺参数对连接结构弯曲刚度的影响规律,并分析了止口连接结构对转子系统固有特性的影响.研究结果表明:止口连接结构的弯曲刚度呈现分段特性;增大预紧力、螺栓直径以及止口过盈量能提高连接结构弯曲刚度;有无止口连接结构的转子系统前三阶固有频率的相对误差小于2%,止口连接结构能够降低转子系统的最大振动幅值.
中图分类号:
罗忠, 罗永恒, 熊鑫, 吴法勇. 装配工艺参数对止口螺栓连接结构力学特性的影响分析[J]. 东北大学学报(自然科学版), 2024, 45(9): 1268-1276.
Zhong LUO, Yong-heng LUO, Xin XIONG, Fa-yong WU. Analysis of Influence of Assembly Process Parameters on Mechanical Properties of Bolted Joint with Spigots[J]. Journal of Northeastern University(Natural Science), 2024, 45(9): 1268-1276.
特征类型 | 单元类型 |
---|---|
实体建模 | Solid 185 |
接触设置 | Targe 170与Conta 174 |
预紧力设置 | Prets 179 |
过盈配合 | CNOF |
表1 单元类型选择
Table 1 Element type selection
特征类型 | 单元类型 |
---|---|
实体建模 | Solid 185 |
接触设置 | Targe 170与Conta 174 |
预紧力设置 | Prets 179 |
过盈配合 | CNOF |
参数 | 数值 |
---|---|
弹性模量/GPa | 108 |
泊松比 | 0.34 |
密度/(kg·m-3) | 4 500 |
摩擦系数 | 0.15 |
表2 连接结构材料参数
Table 2 Material parameters of the connection structure
参数 | 数值 |
---|---|
弹性模量/GPa | 108 |
泊松比 | 0.34 |
密度/(kg·m-3) | 4 500 |
摩擦系数 | 0.15 |
模态阶数 | 频率/Hz | 相对误差% | |
---|---|---|---|
止口 | 无止口 | ||
一阶 | 34.958 | 34.953 | 0.014 |
二阶 | 53.004 | 52.725 | 0.53 |
三阶 | 360.75 | 366.53 | 1.58 |
表3 转子系统前三阶固有频率 (system)
Table 3 First three natural frequencies of the rotor
模态阶数 | 频率/Hz | 相对误差% | |
---|---|---|---|
止口 | 无止口 | ||
一阶 | 34.958 | 34.953 | 0.014 |
二阶 | 53.004 | 52.725 | 0.53 |
三阶 | 360.75 | 366.53 | 1.58 |
1 | 马辉,高昂,杨天瑞,等.止口及螺栓对法兰盘结构静力学特性的影响[J].东北大学学报(自然科学版),2022,43(10):1438-1445. |
Ma Hui, Gao Ang, Yang Tian‑rui,et al.Influence of rabbets and bolts on static characteristics of flange structures[J].Journal of Northeastern University (Natural Science),2022,43(10):1438-1445. | |
2 | 李伦绪,陈果,于平超,等.止口螺栓连接结构非线性刚度机理分析及数值仿真[J].航空动力学报,2021,36(2):358-368. |
Li Lun‑xu, Chen Guo, Yu Ping‑chao,et al.Nonlinear stiffness mechanism analysis and numerical simulation of rabbet‑bolted connection structure[J].Journal of Aerospace Power,2021,36(2):358-368. | |
3 | Montgomery J.Methods for modeling bolts in the bolted joint[C]//ANSYS User’s Conference.Orlanclo,Florida,2002:5. |
4 | Luan Y, Guan Z Q, Cheng G D,et al.A simplified nonlinear dynamic model for the analysis of pipe structures with bolted flange joints[J].Journal of Sound and Vibration,2012,331(2):325-344. |
5 | Wang C, Zhang D Y, Zhu X B,et al.Study on the stiffness loss and the dynamic influence on rotor system of the bolted flange joint[C]//Proceedings of ASME Turbo Expo 2014:Turbine Technical Conference and Exposition.Düsseldorf,2014:1-13. |
6 | Yu P C, Li L X, Chen G,et al.Dynamic modelling and vibration characteristics analysis for the bolted joint with spigot in the rotor system[J].Applied Mathematical Modelling,2021,94:306-331. |
7 | Luo Z, Li Y Q, Li L,et al.Nonlinear dynamic properties of the rotor‑bearing system involving bolted disk‑disk joint[J].Proceedings of the Institution of Mechanical Engineers,Part C:Journal of Mechanical Engineering Science,2021,235(20):4884-4899. |
8 | Wu Z J, Nassar S A, Yang X J.Nonlinear deformation behavior of bolted flanges under tensile,torsional,and bending loads[J].Journal of Pressure Vessel Technology,2014,136(6):061201. |
9 | 姚星宇,王建军.航空发动机螺栓连接载荷与结构参数对连接刚度影响规律[J].推进技术,2017,38(2):424-433. |
Yao Xing‑yu, Wang Jian‑jun.Effects of load and structure parameters of aero‑engine bolted joints on joint stiffness[J].Journal of Propulsion Technology,2017,38(2):424-433. | |
10 | Shi W B, Zhang Z S.An improved contact parameter model with elastoplastic behavior for bolted joint interfaces[J].Composite Structures,2022,300:116178. |
11 | Liu S G, Ma Y H, Zhang D Y,et al.Studies on dynamic characteristics of the joint in the aero‑engine rotor system[J].Mechanical Systems and Signal Processing,2012,29:120-136. |
12 | Niu N N, Zhao Y S, Yang C B,et al.Contact stiffness attenuation model of bolted joint based on time‑varying uncertainty[J].The International Journal of Advanced Manufacturing Technology,2023,124(11):3847-3856. |
13 | Li C F, Qiao R H, Tang Q S,et al.Investigation on the vibration and interface state of a thin‑walled cylindrical shell with bolted joints considering its bilinear stiffness[J].Applied Acoustics,2021,172:107580. |
14 | Qin Z Y, Han Q K, Chu F L.Bolt loosening at rotating joint interface and its influence on rotor dynamics[J].Engineering Failure Analysis,2016,59:456-466. |
15 | Sun W, Li T, Yang D J,et al.Dynamic investigation of aeroengine high pressure rotor system considering assembly characteristics of bolted joints[J].Engineering Failure Analysis,2020,112:104510. |
16 | Zhao G, Xiong Z L, Jin X,et al.Prediction of contact stiffness in bolted interface with natural frequency experiment and FE analysis[J].Tribology International,2018,127:157-164. |
17 | Wall M, Allen M S, Kuether R J.Observations of modal coupling due to bolted joints in an experimental benchmark structure[J].Mechanical Systems and Signal Processing,2022,162:107968. |
[1] | 马辉, 高昂, 杨天瑞, 官宏. 止口及螺栓对法兰盘结构静力学特性的影响[J]. 东北大学学报(自然科学版), 2022, 43(10): 1438-1445. |
[2] | 孙红运, 袁惠群, 赵天宇. 基于PIHISCMSM失谐叶盘振动特性研究[J]. 东北大学学报:自然科学版, 2020, 41(12): 1733-1740. |
[3] | 罗忠, 周逸夫, 边子方, 王菲. 滚动轴承非线性因素对转子系统振动特性的影响[J]. 东北大学学报:自然科学版, 2019, 40(8): 1131-1138. |
[4] | 姜世杰, 史银芳, SIYAJEU Yannick, 闻邦椿. FDM薄板振动特性的理论与实验研究[J]. 东北大学学报:自然科学版, 2019, 40(4): 516-520. |
[5] | 张睿, 张义民, 朱丽莎, 赵春雨. 齿轮传动激励下采煤机摇臂振动特性[J]. 东北大学学报:自然科学版, 2018, 39(1): 108-112. |
[6] | 赵薇, 周娜, 张义民. 振动传递路径系统的路径插入损失分析[J]. 东北大学学报:自然科学版, 2015, 36(2): 250-254. |
[7] | 王奇斌,胡鹏,张义民,马辉. 基于积分模型的斜齿轮转子系统振动特性分析[J]. 东北大学学报:自然科学版, 2014, 35(5): 721-725. |
[8] | 林君哲;周恩涛;杜林森;闻邦椿;. 流体参数对航空发动机液压管路振动特性的影响[J]. 东北大学学报(自然科学版), 2012, 33(10): 1453-1456+1469. |
[9] | 吴宁祥;谢里阳;吴克勤;由美雁;. 裂纹梁动力学仿真的有限元模型[J]. 东北大学学报(自然科学版), 2008, 29(5): 714-717. |
[10] | 穆世诚;张维屏. 弹簧支承减速器提升机的振动特性及影响它的因素[J]. 东北大学学报:自然科学版, 1984, 5(2): 117-125+164. |
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