摘要
本文研究了复合材料桨叶振动特性的分析方法。基于连续介质力学理论,提出了一个新的等参曲梁单元,详细推导了梁上任意一点的形状函数,讨论了复杂翼型剖面的积分技术。算例表明,本文的计算结果与实验结果非常吻合。
The method for analysing the vibration characteristics of composite blades is presented. Based on the continuum mechanics theory, a new isoparametric curve beam element is set up. The shape functions of every point on the beam are derived in detail and the integral techniques of complex aerofoil are discussed. The new element can model the cross section and the plyment of composite. The calculation time will be widely reduced if this element is used to analyse the vibration characteristics and response of blades. Certainly the new element is fit for the analysis of the other thin-walled structures. Numeral examples show that the results are coincident with the test.
出处
《航空学报》
EI
CAS
CSCD
北大核心
1992年第9期A516-A521,共6页
Acta Aeronautica et Astronautica Sinica
关键词
桨叶
复合材料
振动
曲梁
blade, composite, vibration, curve beam
