使用多补丁参数化和基于罚款的合方法对翼结构进行异地测量分析
Dawei Wang1, Xian Cao1, Yang Xue1
1COMAC Beijing Aircraft Technology Research Institute, Beijing, 102211, China.
Scientific reports
|March 6, 2026
概括
本研究引入了使用异地形分析 (IGA) 的飞机机翼的新几何参数化. 与传统的有限元素分析 (FEA) 相比,IGA在使用较少的计算资源实现了高精度.
科学领域:
- 航空航天工程 航空航天工程
- 计算力学 计算力学 计算力学
- 结构分析 结构分析
背景情况:
- 在飞机设计中,几何参数化和结构分析至关重要.
- 与传统的有限元素方法 (FEM) 相比,同位几何分析 (IGA) 提供了更高的准确性和简化CAD/CAE集成.
研究的目的:
- 为经典飞机机翼结构开发一个分析适合的几何参数化.
- 为了验证IGA对复杂飞机机翼分析的有效性.
主要方法:
- 使用非统一的理性B-splines (NURBS) 来进行多补丁翼几何表示.
- 在IGA框架内应用Reissner-Mindlin外理论.
- 实施了针对不符合接口连续性的基于惩罚的方法.
- 进行静态曲分析,并将结果与ABAQUS中的常规FEM进行比较.
主要成果:
- 为飞机机翼结构开发了一个符合规范的几何参数化.
- IGA的结果与FEA的参考解决方案有很好的一致性.
- 实现了与FEA相似的精度,自由度显著降低.
结论:
- 拟议的IGA方法对于飞机机翼结构分析非常有效.
- 对于复杂的航空航天结构,IGA为传统的FEA提供了一个计算效率高的替代方案.
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