含功能梯度材料的周期管路振动特性研究

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摘要以管路振动控制为目标，研究了含功能梯度材料的周期管路振动特性研究。利用有限元法计算功能梯度材料管路的带隙特性和应力分布情况。深入分析了影响功能梯度材料管路带隙特性的因素，包括单元内功能梯度材料管路长度，过渡函数性质，研究表明功能梯度材料能有效调节经典周期管路的带隙特性；同时功能梯度材料可以有效减弱周期管路不同材料界面处应力集中问题。研究结果为带隙调节和消除应力集中提供了一个新思路。

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	杜春阳郁殿龙温激鸿刘江伟贾鹏飞

关键词 ：功能梯度材料, 周期管路, 带隙, 应力集中

Abstract：

In order to control the vibration of the pipe, the vibration propertiesof periodic beamwith functionally graded material(FGM)are investigated. Based on finite element method, the band gap of periodic pipeline with functionally graded materials was calculated.The properties oftunable band gap of FGM are discussed in detail, such as the length of pipe with functionally graded materials in cell unit, properties of transition function. Results show that a considerable stress concentration can be alleviated by the application of this FGM. The results reveal that the band gap of classic periodic pipeline can be improved as well as the stress concentration problem because of the functionally graded materials.The FGMs can be used to provide a new way for tunableband gap and eliminating the stress concentration.

Key words： Functionally graded materials periodic pipe Band gap Stress concentration

收稿日期: 2016-09-02 出版日期: 2018-02-15

引用本文:

杜春阳郁殿龙温激鸿刘江伟贾鹏飞. 含功能梯度材料的周期管路振动特性研究[J]. 振动与冲击, 2018, 37(4): 170-176.
DU Chunyang YU Dianlong WEN Jihong LIU Jiangwei JIA Pengfei. Vibration property of periodic pipe with functionally graded materials. JOURNAL OF VIBRATION AND SHOCK, 2018, 37(4): 170-176.

链接本文:

http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2018/V37/I4/170

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