@inproceedings{7df6666fd1dd4d1abfa48c5f58318861,
title = "EFFECT OF THE BENDING STIFFNESS OF BOLTED FLANGE JOINTS ON THE DYNAMICS OF AERO-ENGINE ROTORS",
abstract = "Bolted flange joints are used to connect adjacent disks and drums in aero-engine rotors. The flange mating contact surfaces usually move relative to each other and deform when they are subjected to numerous combinations of loads during normal operation. Consequently, the local bending stiffness of the bolted flange joint is altered considerably affecting the overall rotor stiffness and therefore the rotor dynamics. This paper presents a study on the effect of the bending stiffness of bolted flange joints on the dynamic characteristics of an aero-engine rotor. A method to calculate the bending stiffness is proposed using an equivalent model based on an axial spring and bending beam stiffnesses. The relationship of the structure geometry, loading and assembly conditions of the bolted flange joints, and the bending stiffness loss are obtained. Furthermore, a dynamic model of an aero-engine high-pressure compressor rotor is developed using the transfer matrix method that incorporates the bending stiffness effect of the bolted flange joint. Based on this model, the influence of bending stiffness on the natural frequency and the steady-state response is discussed. The results show that the stiffness loss of bolted flange joint has a significant impact on the rotor dynamics. The structure geometry, loading, and assembly conditions can be used to control the dynamic response of aero-engine rotors.",
keywords = "Aero-engine, bending stiffness, bolted flange joints, rotor dynamics, stiffness loss",
author = "Linbo Zhu and Hu Pan and Yilong Yang and Bouzid, \{Abdel Hakim\} and Jun Hong",
note = "Publisher Copyright: Copyright {\textcopyright} 2022 by ASME.; ASME 2022 Pressure Vessels and Piping Conference, PVP 2022 ; Conference date: 17-07-2022 Through 22-07-2022",
year = "2022",
doi = "10.1115/PVP2022-84708",
language = "英语",
series = "American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP",
publisher = "American Society of Mechanical Engineers (ASME)",
booktitle = "Computer Technology and Bolted Joints; Design and Analysis",
}