新能源飞机复合材料螺旋桨整流罩组合结构动力学分析
Dynamic Analysis of the Composite Material Propeller Cowling Composite Structures for New Energy Aircraft
DOI: 10.12677/ojav.2026.141002, PDF,   
作者: 刘家乐, 宋旭圆：沈阳航空航天大学航空航天工程学部(院)，辽宁 沈阳
关键词: 复合材料桨；人工弹簧；板壳耦合；动力学分析；Composite Propeller Cowling； Artificial Spring； Plate-Shell Coupling； Dynamic Analysis
摘要: 本文针对新能源飞机推进系统中复合材料桨罩的动力学分析需求，开展圆球–圆锥–圆盘组合结构(CSCPS)动力学建模的分析研究。基于Donnell壳体理论，建立了该组合结构的能量泛函，其中圆盘的控制方程通过令圆锥壳半顶角取极限导出。采用分布式弹簧技术模拟结构的连接界面与广义边界条件，并应用Rayleigh-Ritz法和Hamilton原理推导出弹性边界下复合材料桨罩组合结构的动力学控制方程。基于参数分析探讨了弹簧刚度对系统固有频率的影响，通过有限元仿真验证了所提建模方法的有效性与计算精度。
Abstract: This paper addresses the needs for dynamic analysis of composite propeller cowling structures in new-energy aircraft propulsion systems, conducting research on the dynamic modeling analysis of combined spherical-conical-plate structures (CSCPS). Based on the Donnell shell theory, the energy functional of the CSCPS is established, with the governing equations for the disk derived by taking the limit of the semi-vertex angle of the conical shell. Distributed spring technology is employed to simulate the connection interfaces and generalized boundary conditions of the structure, while the Rayleigh-Ritz method and Hamilton’s principle are applied to derive the dynamic governing equations of the composite blade casing assembly under elastic boundary conditions. The influence of spring stiffness on the natural frequencies of the system is investigated through parameter analysis, and the effectiveness and computational accuracy of the proposed modeling method are validated via finite element simulations.
文章引用：刘家乐, 宋旭圆. 新能源飞机复合材料螺旋桨整流罩组合结构动力学分析[J]. 声学与振动, 2026, 14(1): 17-28. https://doi.org/10.12677/ojav.2026.141002

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