机械科学与技术2024，Vol.43Issue(5)：891-896,6.DOI:10.13433/j.cnki.1003-8728.20240056
面向初步设计的一种高效静气动弹性分析方法
A High-efficiency Method for Static Aeroelasticity Analysis in Preliminary Design
摘要
Abstract
Flexible wings with large aspect ratio undergo elastic deformation under aerodynamic loads,resulting in changes of wing's aerodynamic characteristics.Therefore,in the preliminary design stage,it is expected to adopt a fast and efficient calculation method to study the redistribution of wing's aerodynamic load under static aeroelastic equilibrium.This work provides an efficient analysis method to solve the static aeroelastic deformation and the corresponding aerodynamic load,in which a loose coupling strategy is adopted,assuming that the angle of attack is unchanged.The undeformed load is first applied on the wing structure,the structural deformation is calculated,and then the aerodynamic load redistribution is calculated from the deformed aerodynamic shape.The final aeroelastic load distribution and aerodynamic characteristics of the wing are obtained by iterating repeatedly until the deformation/load converged.The feasibility of the method is demonstrated by a large aspect ratio elastic model aircraft.关键词
初步设计/大展弦比/静气动弹性/松耦合/载荷Key words
preliminary design/high aspect ratio/static aeroelasticity/loose coupling/loads分类
航空航天引用本文复制引用
赵冉,陶杨,张峻鸣,蒋盼盼,王国良,谷迎松..面向初步设计的一种高效静气动弹性分析方法[J].机械科学与技术,2024,43(5):891-896,6.基金项目
陕西省自然科学基础研究计划(2022JM-047) （2022JM-047）
