弹性载荷设计中插值方法的研究  

The interpolation method in elasticity load design

作　　者：刘晓晨 LIU Xiaochen(Shanghai Aircraft Design and Research Institute,Shanghai 201210,China)

机构地区：[1]上海飞机设计研究院,上海201210

出　　处：《民用飞机设计与研究》2020年第4期52-56,共5页Civil Aircraft Design & Research

摘　　要：通过对考虑静气动弹性影响的载荷设计中多种插值方法的研究与比较,对适用于三维情况下的气动和结构模型之间耦合计算时的载荷传递和位移插值方法进行原理分析和优劣比较,最终确定了曲面样条函数和形函数面积坐标加权两种数据传递方法,分别对其进行了公式推导与编程实现,并利用已有的算例模型计算得出的各项气动力数据调用程序进行插值计算,最后将插值前后的结果进行对比来验证程序的合理性。Based on some research and comparison of a variety of interpolation methods,two kinds of interpolation methods were analyzed on the principle and programmed in this article,including the shape function weighted area coordinates as well as surface spline interpolation method,which is applied for the coupling calculation of force and displacement between the aerodynamics and structure in 3-d space respectively.The interpolation for the aircraft model is conducted with these two kinds of methods.In the end,the reasonability is confirmed by comparing the results before and after interpolation.

关 键 词：气动弹性 气动载荷 结构变形 插值 

分 类 号：V211.47[航空宇航科学与技术—航空宇航推进理论与工程]