Rigid Coupling Coefficient Matrix Optimizaition Algorithm for Aircraft with Flexible Components
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.
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