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Experimental investigation on vibration characteristics of shear thickening fluid filled CFRP tubes

机译：剪切增稠流体CFRP管振动特性的实验研究

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摘要

Vibration attenuation performance of structures is significantly important in aerospace, automotive, sport and medical equipment applications. In order to enhance the vibration absorption properties, shear thickening fluid (STF) is a candidate component in the structures due to its viscoelastic behavior. In this study, the vibration characteristics of carbon fiber reinforced polymer (CFRP) tubes were investigated. To compensate the lack of vibration isolation behavior of CFRP tubes, a natural STF was filled into the tubes and thus, the thickening rheology of this smart fluid was benefited in the STF/CFRP structures. The vibrational properties of the structures were investigated with modal analysis and the natural frequencies and damping ratios were calculated for two different boundary conditions (single and double-fixed ends). The results showed that the STF integration into the CFRP tubes significantly enhances the natural frequency of the structures as well as providing higher damping ratio in the STF/CFRP systems.
机译：结构的减振性能在航空航天，汽车，运动和医疗设备应用中非常重要。为了增强振动吸收性能，剪切增稠液（STF）由于其粘弹性行为而成为结构中的候选组分。在这项研究中，研究了碳纤维增强聚合物（CFRP）管的振动特性。为了弥补CFRP管隔振性能的不足，将天然STF填充到管中，因此，这种智能流体的增稠流变性在STF / CFRP结构中得到了好处。通过模态分析研究了结构的振动特性，并针对两种不同的边界条件（单端和双端）计算了固有频率和阻尼比。结果表明，STF集成到CFRP管中可以显着提高结构的固有频率，并在STF / CFRP系统中提供更高的阻尼比。

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