直升机旋翼桨叶动力学/强度多学科优化设计  

Dynamics and Strength Optimal Design of Helicopter Rotor Blades

作　　者：余瑾 金坤健[1] 黄珺[1] 陈艳红 YU Jin;JIN Kunjian;HUANG Jun;CHEN Yanhong(China Helicopter Research and Design Institute,Jingdezhen 333001,China)

机构地区：[1]中国直升机设计研究所,江西景德镇333001

出　　处：《直升机技术》2024年第1期1-6,共6页Helicopter Technique

摘　　要：为解决板梁构型桨叶设计方案结构超重和疲劳寿命不足的问题,以旋翼桨叶剖面特性展向分布为设计变量,以桨叶频率配置、气弹稳定性和转动惯量为设计约束,组织多学科优化设计,实现减小桨叶结构重量,提高桨叶疲劳寿命并降低桨叶剖面动载荷的设计目标。取桨叶动载荷最大的高速前飞状态为设计点,采用文中构建的方法,成功实现了该桨叶的调频/减重/减振/提高疲劳寿命优化设计,优化后桨叶结构减重近10%,桨叶控制剖面的动应变降到许用值以下,满足了重量和疲劳寿命设计指标。This paper addressed the application of a multidisciplinary optimization in rotor blade section properties distribution design to enhance fatigue life of the blade structure,to reduce the blade structural weight and the blade vibratory loads,and the optimal design subjected to the constraints on frequency displacement,aero-elastic stability and the blade inertia.Based on the optimization strategy in this paper,the optimal design of a practical rotor blade was achieved,and satisfied the requirements of weight and fatigue life in engineering design.

关 键 词：减重 减振 提寿 多学科优化 桨叶 直升机 

分 类 号：V214.19[航空宇航科学与技术—航空宇航推进理论与工程]