嵌入SMA丝的复合材料轴的刚度与变形特性研究  

Deformation and Stiffness Characteristics Study of Composite Thin-walled Shaft with SMA Wire

作　　者：张晓梅[1] 赵仰生 任勇生[2] 赵奇 ZHANG Xiao-mei;ZHAO Yang-sheng;REN Yong-sheng;ZHAO Qi(Shanxi Vocational and Technical College of Coal,Taiyuan 030031,China;College of Mechanical and Electronic Engineering,Shandong University of Science & Technology,Shandong Qindao 266590,China)

机构地区：[1]山西煤炭职业技术学院,太原030031 [2]山东科技大学机械电子工程学院,山东青岛266590

出　　处：《太原科技大学学报》2019年第4期301-310,共10页Journal of Taiyuan University of Science and Technology

基　　金：山东省自然科学基金(ZR2011EEM031)

摘　　要：研究了嵌入SMA丝的复合材料薄壁轴的变形特性。采用变分渐进法描述位移和应变引入横向剪切变形的影响。由变分原理推导出旋转复合材料薄壁轴的静力平衡方程,采用Galerkin法进行离散化并编制了计算程序。分析了SMA丝含量、初始应变、温度、纤维铺设角、转速对复合材料轴变形特性的影响。The static characteristics of the shaft with Shape Memory Alloy (SMA) wire are investigated.A variational asymptotically approach (VAM) is employed to describe the relationship between the displacement and strain,which also introduces the transverse shear deformation effects.Variation principle is used to derive static balance equations.The governing equations are discretized and solved by Galerkin's method.Computing programs have been complied in Matlab on the basis of the analytical models.The effects of fractions of SMA wire,initial strains of SMA wire,temperature,fiber orientation and spin speed on the deformation characteristics of the composite shaft are represented.The results show that the model presented in this paper can be used to calculate the deformation characteristics of the spinning composite shaft with SMA wire.

关 键 词：复合材料薄壁轴 形状记忆合金 旋转轴 变形特性 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]