碳纤维圆管增强超弹多孔结构振动特性研究

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Abstract With the rapid development of shipbuilding industry technology, the power system vibration isolation device put forward more stringent requirements, although the existing rubber damping material has a good vibration damping effect, but there are still problems such as large mass, mechanical bearing performance and insufficient energy absorption performance, in view of the background of the appeal, this paper combines rubber damping material with excellent mechanical properties of carbon fiber round tube to design a carbon fiber round tube reinforced super-elastic porous structure with both light weight, impact resistance and vibration isolation. In previous studies, it has been verified that the structure has excellent impact absorption performance. On this basis, the vibration behavior and damping performance of the structure are studied by experimental and numerical characterization, and the influence of carbon fiber round tube on the inherent vibration characteristics and damping performance of the structure is revealed. The results show that compared with the unreinforced structure, the super-elastic porous structure filled with carbon fiber round tube can significantly improve the vibration damping performance while enhancing the overall stiffness of the structure. The experimental results verify the reliability of the established numerical model of the structure, and compare the simulation and test of different reinforced structures and show that with the increase of the thickness of the carbon fiber round tube, the natural frequency of the structure first increases and then decreases. The research results can provide a reference for the design of new lightweight, high-stiffness and high-damping structures.

Key words： porous structure carbon fiber round tube polyurethane vibration damping

Received: 15 June 2023 Published: 15 June 2024

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	Articles by authors
	FAN Yongle1
	2
	YANG Jinshui1
	2
	LI Shuang1
	2
	LIU Yanzuo1

Cite this article:

FAN Yongle1,2,YANG Jinshui1, et al. Vibration characteristics of carbon fiber circular tube reinforced super-elastic porous structure[J]. JOURNAL OF VIBRATION AND SHOCK, 2024, 43(11): 111-117.

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http://jvs.sjtu.edu.cn/EN/ OR http://jvs.sjtu.edu.cn/EN/Y2024/V43/I11/111

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