带柔性部件飞行器刚性耦合系数矩阵优化算法
Rigid Coupling Coefficient Matrix Optimizaition Algorithm for Aircraft with Flexible Components
李枫 1张凯 1孟爱华 2陈忠灿 1尹汉锋3
作者信息
- 1. 中国运载火箭技术研究院,北京 100076
- 2. 北京计算机技术及应用研究所,北京 100854
- 3. 湖南大学 机械与运载工程学院,长沙 410082
- 折叠
摘要
针对目前飞行器刚性耦合系数矩阵算法中按照单元节点规律排列的质量矩阵数据处理难度大,运算维度高的问题,本文提出一种非离散化方法的刚性耦合系数矩阵优化算法,利用在三维模型中可以直接获取的柔性部件质量特性,替代高维度的质量矩阵参与计算,避免了模型离散化误差,在简化刚性耦合系数计算流程的同时,具有提高计算结果准确度的效果,增强了工程设计中的便利性.
Abstract
The calculation of the rigid coupling coefficient matrix of the aircraft is complex and time-con-suming as the finite element method requires operations of data in the high-dimensional mass matrix ar-ranged with the element nodes.An optimization algorithm based on non-discrete method is proposed in this paper.The inertia characteristics of flexible components of the three-dimensional model could be di-rectly obtained in this calculation,and replace the high-dimensional mass matrix.The error from model discretization could be also avoided.The calculation process is simplified and the accuracy of the calcula-tion results is also improved,which brings convenience in engineering design for the aircraft.
关键词
飞行器/非离散化/刚性耦合系数矩阵/优化算法Key words
aircraft/non-discrete/rigid-coupling-coefficient-matrix/optimizaition algorithm引用本文复制引用
基金项目
国家自然科学基金资助项目(52276169)
出版年
2024
NETL
NSTL
万方数据