双转子航空发动机中介支点动载荷控制研究  

Dynamic load control of intermediate fulcrum of dual rotor aero-engine

作　　者：王东 洪杰[2] 李其建[1] 王永锋 王楚君 WANG Dong;HONG Jie;LI Qijian;WANG Yongfeng;WANG Chujun(Shenyang Engine Research Institute,Aero Engine Corporation of China,Shenyang 110015,China;School of Energy and Power Engineering,Beihang University,Beijing 100191,China;Research Institute of Aero-Engine,Beihang University,Beijing 100191,China)

机构地区：[1]中国航发沈阳发动机研究所,沈阳110015 [2]北京航空航天大学能源与动力工程学院,北京100191 [3]北京航空航天大学航空发动机研究院,北京100191

出　　处：《航空动力学报》2025年第2期242-250,共9页Journal of Aerospace Power

基　　金：“两机”专项基础研究项目“航空发动机总体结构快速建模及结构布局技术研究”(2017-Ⅰ-0008-0009)。

摘　　要：针对中介支点动载荷控制问题,建立质量和刚度等效的中介支点-双转子系统动力学模型,基于敏感度分析识别出不平衡激励载荷、陀螺力矩载荷、转轴弹性变形恢复力等影响中介支点动载荷的关键因素,并结合型号研制经验,提出了基于转子平衡品质控制与变形状态协调的中介支点动载荷控制方法,通过转子平衡品质控制、涡轮盘角向变形控制以及中介支点轴向位置选取等措施,分别使中介支点应变能占比和动载荷降低26%和55%。上述研究在型号研制中的得到验证,提高了整机结构系统可靠性。In order to solve the problem of dynamic load control for intermediate fulcrum,a dynamic model of the intermediate fulcrum dual rotor system with equivalent mass and stiffness was established,and the key factors significantly affecting the dynamic load of intermediate fulcrum were identified through sensitivity analysis of unbalanced excitation load,gyro moment load,shaft elastic deformation restoring force,etc.Combining the project development experience,a series of methods for controlling the dynamic load of intermediate fulcrum based on the coordination of rotor balance quality and deformation status were proposed,such as rotor balance quality control,turbine disk angular deformation control,and selection of axial position of intermediate fulcrum.The proportion of strain energy and dynamic load at intermediate fulcrum were reduced by 26%and 55%,respectively.The above research was validated in project development,improving the reliability of the overall structural system.

关 键 词：航空发动机 中介支点 动载荷 平衡品质 陀螺力矩 

分 类 号：V231.96[航空宇航科学与技术—航空宇航推进理论与工程]