一种复合材料桨叶动力学建模研究

doi:10.19936/j.cnki.2096-8000.20230228.007

复合材料科学与工程 ›› 2023, Vol. 0 ›› Issue (2): 54-59.DOI: 10.19936/j.cnki.2096-8000.20230228.007

一种复合材料桨叶动力学建模研究

邵松, 应旭成

南京模拟技术研究所,南京 210016

收稿日期:2022-09-23 出版日期:2023-02-28 发布日期:2023-04-28
作者简介:邵松(1980—),男,博士,工程师,主要从事直升机旋翼复合材料桨叶动力学方面的研究,ncwu9918@163.com。

Dynamic modeling investigation of a composite blade

SHAO Song, YING Xucheng

Nanjing Research Institute on Simulation Technique, Nanjing 210016, China

Received:2022-09-23 Online:2023-02-28 Published:2023-04-28

摘要/Abstract

摘要： 直升机旋翼在工作状态下,复合材料桨叶在周期交变气动环境中经历大幅非线性拉伸、弯曲及扭转变形,传统的中等变形梁理论不能满足复合材料桨叶动力学特性分析的需求。本文基于几何精确梁理论,采用混合变分法建立旋翼复合材料桨叶动力学模型,通过数值方法求解了具有结构耦合的复合材料梁的变形及固有频率,并与Minguet大变形复合材料梁测试结果进行了对比验证,同时计算了旋转状态下复合材料桨叶的动力学响应,并与Dymore软件计算结果进行了对比分析,结果表明本文所建立的复合材料桨叶动力学模型能够准确预测具有结构耦合的复合材料梁的动力学特性,验证了模型的有效性。

关键词: 复合材料桨叶, 几何精确梁, 混合变分法, 动响应

Abstract: When a helicopter rotor works,the composite blade undergo large nonlinear extension, bending, twisting deflection,the traditionally moderate beam theory can’t satisfy the necessity of the composite blade dynamic analysis. In this paper, based on geometrically exact rotating beam theory, the composite blade dynamic model is presented with the mixed variational formulation. The deformation and natural frequency of the composite beam are solved numerically and compared with Minguet’s experimental data of composite large deflection beam, and the dynamic response of the rotating composite blade is also calculated to compare the result of Dymore software.The results show that the composite blade dynamic model can accurately predicte the dynamic behaviors of the composite blade with structure coupling. The effectiveness of the model is verified.

Key words: composite blade, geometrically accurate beam, mixed variational formulation, dynamic response

中图分类号:

TB332

邵松, 应旭成. 一种复合材料桨叶动力学建模研究[J]. 复合材料科学与工程, 2023, 0(2): 54-59.

SHAO Song, YING Xucheng. Dynamic modeling investigation of a composite blade[J]. COMPOSITES SCIENCE AND ENGINEERING, 2023, 0(2): 54-59.

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一种复合材料桨叶动力学建模研究

Dynamic modeling investigation of a composite blade

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