Workable mode optimization design method for dual-rotor system with inter-shaft bearing

被引：0

作者：

Wang, Rui ^{[1
]}

Liao, Mingfu ^{[1
]}

Cheng, Ronghui ^{[2
]}

Cong, Peihong ^{[2
]}

Lei, Xinliang ^{[3
]}

机构：

[1] School of Power and Energy, Northwestern Polytechnical University, Xi’an,710129, China

[2] Shenyang Engine Research Institute, Aero Engine Corporation of China, Shenyang,110015, China

[3] Sichuan Gas Turbine Establishment, Aero Engine Corporation of China, Chengdu,610500, China

来源：

Hangkong Dongli Xuebao/Journal of Aerospace Power | 2024年 / 39卷 / 09期

关键词：

Bearings (machine parts) - Design for testability - High pressure effects - Linear programming - Rotors - Shafts (machine components);

D O I：

10.13224/j.cnki.jasp.20220623

中图分类号：

学科分类号：

摘要：

In order to solve the problem that the dual-rotor system of aero-engine cannot avoid the critical speed， a model of dual-rotor system with inter-shaft bearing was established. Considering the influence of unbalance sensitivity，damper effect and the load effect of inter-shaft bearing，the tolerability evaluation functions of low-pressure and high-pressure rotor excited modes were constructed， the tolerability objective function and the constraint condition for optimization design on workable mode of dual-rotor were confirmed， and the optimization design method for the workable mode of dual-rotor system with inter-shaft bearing was established. It was found that compared with the traditional critical speed margin design criterion，the maximum amplitude of the disk of the dual-rotor system with inter-shaft bearing was reduced by 39.83%，the total mass of the shafting was reduced by 2.32%，and the external force of the fulcrum was reduced by 64.98% by using the optimization design method for the workable mode， indicating that the optimization design method for the workable mode of dual-rotor system with inter-shaft bearing was effective. © 2024 Beijing University of Aeronautics and Astronautics (BUAA). All rights reserved.

引用

共 50 条

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