| Citation: | YAO X Y. Influence of mistuning bolted joints on dynamic characteristics of thin-walled cylinder[J]. Journal of Beijing University of Aeronautics and Astronautics，2023，49（5）：1238-1246 （in Chinese） doi: 10.13700/j.bh.1001-5965.2021.0468
|
The performance degradation of bolted joints is a problem which should be considered for the safety of aero-engine. The concept of preload mistuning of bolted joints can characterize the performance degradation, and the preload mistuning amplitude and the preload mistuning ratio are used to illustrate the state of the preload mistuning. The influence of mistuning bolted joints on the dynamic characteristics of thin-walled cylinder was studied based on the combination of preload mistuning with the improved thin-layer element method of bolted joints. First of all, the deterministic analysis of the influence of preload mistuning on the thin-walled cylinder was proposed, including the influence of the natural frequency and steady-state response. Moreover, the influence of preload mistuning on the probabilistic response characteristics of thin-walled cylinder was researched considering the randomness of bolt preload. The results indicate that the separation degree of the same-order natural frequency of thin-walled cylinder increases with the decrease of preload mistuning amplitude, and presents a “double peak” characteristic with the increase of preload mistuning ratio. The preload mistuning makes the frequency corresponding to the response peak of thin-walled cylinder reduce but the amplitude increase. The random preload mistuning makes the frequency band of the response peak point wider, and when the input parameter is exponential distribution, the output parameter is Weibull distribution.
| [1] |
陈予恕, 张华彪. 航空发动机整机动力学研究进展与展望[J]. 航空学报, 2011, 32(8): 1371-1391.
CHEN Y S, ZHANG H B. Review and prospect on the research of dynamics of complete aero-engine systems[J]. Acta Aeronautica et Astronautica Sinica, 2011, 32(8): 1371-1391(in Chinese).
|
| [2] |
曹鹏. 带非线性支承转子系统动力学特性研究[D]. 北京: 北京航空航天大学, 2013.
CAO P. Research on dynamic characteristics of rotor system with nonlinear supports[D]. Beijing: Beihang University, 2013(in Chinese).
|
| [3] |
樊宁. 航空发动机连接结构刚度非线性及其对转子动力学的影响[D]. 北京: 北京航空航天大学, 2013.
FAN N. Studies on dynamic characteristics of the joint in the aero-engine rotor system[D]. Beijing: Beihang University, 2013(in Chinese).
|
| [4] |
IBRAHIM R A, PETTIT C L. Uncertainties and dynamic problems of bolted joints and other fasteners[J]. Journal of Sound and Vibration, 2005, 279(3-5): 857-936.
|
| [5] |
姚星宇, 程涵. 谐调螺栓连接对航空发动机静子系统动力学特性影响[J]. 科学技术与工程, 2021, 21(16): 6913-6922. doi: 10.3969/j.issn.1671-1815.2021.16.054
YAO X Y, CHENG H. Influence of tuned bolted joints on dynamic characteristics of aero-engine stator system[J]. Science Technology and Engineering, 2021, 21(16): 6913-6922(in Chinese). doi: 10.3969/j.issn.1671-1815.2021.16.054
|
| [6] |
苏永雷. 拉杆松弛与组合转子性能退化的关联性研究[D]. 长沙: 中南大学, 2014.
SU Y L. The correlation research of rod relaxation and performance degradation of combined rotor[D]. Changsha: Central South University, 2014(in Chinese).
|
| [7] |
苏永雷, 王艾伦, 曾海楠. 拉杆松弛导致预紧失谐组合转子性能退化研究[J]. 振动与冲击, 2015, 34(20): 21-26. doi: 10.13465/j.cnki.jvs.2015.20.005
SU Y L, WANG A L, ZENG H N. Performance degradation of mistuned combined rotor considering rod relaxation[J]. Journal Vibration and Shock, 2015, 34(20): 21-26(in Chinese). doi: 10.13465/j.cnki.jvs.2015.20.005
|
| [8] |
GAUL L, LENZ J. Nonlinear dynamics of structures assembled by bolted joints[J]. Acta Mechanica, 1997, 125(1-4): 169-181.
|
| [9] |
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]//ASME Turbo Expo 2014: Turbine Technical Conference and Exposition. New York: ASME, 2014.
|
| [10] |
MCCARTHY M A, MCCARTHY C T, LAWLOR V P, et al. Three-dimensional finite element analysis of single-bolt, single-lap composite bolted joints: Part I-Model development and validation[J]. Composite Structures, 2005, 71(2): 140-158.
|
| [11] |
AHMADIAN H, JALALI H. Identification of bolted lap joints parameters in assembled structures[J]. Mechanical Systems and Signal Processing, 2007, 21(2): 1041-1050.
|
| [12] |
SCHWINGSHACKL C W, MAIO D D, SEVER I, et al. Modeling and validation of the nonlinear dynamic behavior of bolted flange joints[J]. Journal of Engineering for Gas Turbines and Power, 2013, 135(12): 122504.
|
| [13] |
姚星宇, 王建军, 翟学. 航空发动机螺栓连接薄层单元建模方法[J]. 北京航空航天大学学报, 2015, 41(12): 2269-2279. doi: 10.13700/j.bh.1001-5965.2014.0796
YAO X Y, WANG J J, ZHAI X. Modeling method of bolted joints of aero-engine based on thin-layer element[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(12): 2269-2279(in Chinese). doi: 10.13700/j.bh.1001-5965.2014.0796
|
| [14] |
郭宁, 黄庆, 曹善成, 等. 基于模型修正的螺栓连接板结构动力学建模方法[J]. 工程力学, 2021, 38(6): 1-9. doi: 10.6052/j.issn.1000-4750.2020.04.ST01
GUO N, HUANG Q, CAO S C, et al. Structural dynamic modeling method of bolted joint plates based on model updating[J]. Engineering Mechanics, 2021, 38(6): 1-9(in Chinese). doi: 10.6052/j.issn.1000-4750.2020.04.ST01
|
| [15] |
YAO X Y, WANG J J, ZHAI X. Research and application of improved thin-layer element method of aero-engine bolted joints[J]. Proceedings of the Institution of Mechanical Engineers, Part G:Journal of Aerospace Engineering, 2017, 231(5): 823-839. doi: 10.1177/0954410016643978
|
Figures(15) / Tables(4)
Copyright © Journal of Beijing University of Aeronautics and Astronautics
Address: Editorial Department of Journal of Beijing University of Aeronautics and Astronautics, 37 Xueyuan Road, Haidian District, Beijing Post Code: 100191 Email: jbuaa@buaa.edu.cn
Supported by:
Beijing Renhe Information Technology Co., Ltd.
DownLoad:
