张苏华.一种民机颤振模型配重设计优化方法[J].民用飞机设计与研究,2018,(1):109-
一种民机颤振模型配重设计优化方法
An Optimization Method of the Flutter Model Mass-Balancing Design for Civil Aircraft
  
DOI:10.19416/j.cnki.1674-9804.2018.01.020
中文关键词:颤振模型  配重  拆分  重心
英文关键词:flutter model  mass-balancing  splitting  centre of gravity
基金项目:
作者单位
张苏华 上海飞机设计研究院上海201210 
中文摘要:民机跨音速颤振模型配重计算应考虑模型肋板不平行、肋板与刚轴不垂直的情况,现提出一种基于刚轴方向的质量、惯量线性拆分方法,并将该方法拓展到模型的展向重心位置配平计算中。某型民机垂尾跨音速颤振模型运用该方法进行了配重计算,试验结果显示,该垂尾跨音速颤振模型质量、惯量配平精度高,展向重心位置配平效果好,模型的动力学特性与设计目标相符。实践表明,该方法符合民机跨音速颤振模型设计规范要求及相应适航要求,可以推广到其他跨音速颤振模型的配重计算中。
英文摘要:Calculation of mass balancing for civil aircraft’s transonic flutter models should consider the unparallel ribs and rib’s non perpendicular to the elastic axis. Now, an optimization linear splitting method of mass and inertia properties based on the direction of elastic axis is put forward. And that method is extendedly applied to the calculation of flutter models’ spanwise location of the centre of gravity. Some civil airplane’s vertical tail transonic flutter model used the method in mass balancing. Test results show that the related vertical tail transonic flutter model simulates the mass and inertia properties precisely, and the model’s dynamical properties meet the design objectives well. Practice indicates that the optimization method fulfills the technical standards of civil airplane’s transonic flutter model design and related airworthiness regulations, and it can be extensively applied to the calculation of other transonic flutter models’ mass balancing.
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