Research on Vibration Damping Properties of Entangled Metallic Wire Materials- Polyurethane Composites
ZHENG Xiaoyuan1, REN Zhiying1,*, WU Yiwang1, BAI Hongbai1, HUANG Jianmeng1, TAN Guibin2
1 Metal Rubber Engineering Research Center, School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350116, China 2 School of Mechanical and Electrical Engineering, Guangdong University of Technology, Guangzhou 510006, China
Abstract: In the present work, a novel entangled metallic wire material-polyurethane(EMWM-PU) composite was developed through the vacuum infiltration method with the entangled metallic wire material (EMWM) as the matrix and polyurethane as the reinforcement. By comparing the quasistatic compression properties of EMWM and EMWM-PU composites, it was found that the composites exhibited excellent energy consumption and stiffness properties due to the interfacial friction. The pipeline test platform was built, and the vibration acceleration level and insertion loss were used as evaluation indexes. In addition, the effects of EMWM density, excitation levels and preload on the vibration damping performance of the pipeline were studied in detail. The results showed that the EMWM-PU composites have excellent vibration reduction effect in the frequency band of 5—1 000 Hz, and the smaller of the matrix density and the larger the preload during installation, the better the vibration reduction effect. This study provides effective guidance for the design and application of EMWM composites.
通讯作者: *任志英,福州大学机械工程及自动化学院教授、博士研究生导师。2006年福州大学工作至今。目前主要从事装备减振降噪与金属橡胶材料研制方面的研究工作。发表论文60余篇,包括Composite Structures、Friction、AICHE J、Mechanical Systems and Signal Processing、Defence Technology 等。
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2024, Vol. 38 
