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Nonlinear vibration suppression of composite laminated beam embedded with NiTiNOL-steel wire ropes
Nonlinear Dynamics ( IF 5.6 ) Pub Date : 2021-02-12 , DOI: 10.1007/s11071-021-06258-w
Li-Heng Zheng , Ye-Wei Zhang , Hu Ding , Li-Qun Chen

NiTiNOL-steel wire rope (NiTi-ST) is a new vibration absorber with nonlinear stiffness and hysteretic damping. Although there are many studies on NiTi-ST nonlinear identification, there are few studies on vibration suppression for laminated structures with NiTi-ST. In the present work, the NiTi-ST is integrated with a composite laminated beam for structural vibration suppression for the first time. A coupling model of the composite laminated beam embedded with NiTi-ST is proposed. The nonlinear restoring force and hysteretic damping force of NiTi-ST are processed into polynomial form. The responses of the beam embedded with different NiTi-ST are investigated by the Galerkin discretization together with the harmonic balance method (HBM). The terms of the polynomial model are discussed. Two numerical methods are utilized for steady-state responses and numerical validations. Simulation results demonstrate the effectiveness of NiTi-ST. This vibration suppression method can be popularized for other laminated structures and contribute to vibration control in engineering fields.



中文翻译:

NiTiNOL钢绞线埋入复合层合梁的非线性振动抑制

NiTiNOL钢缆(NiTi-ST)是一种具有非线性刚度和滞后阻尼的新型减振器。尽管关于NiTi-ST非线性识别的研究很多,但是关于用NiTi-ST进行层压结构的振动抑制的研究却很少。在目前的工作中,NiTi-ST首次与复合层压梁集成在一起,以抑制结构振动。提出了嵌有NiTi-ST的复合层合梁的耦合模型。NiTi-ST的非线性恢复力和磁滞阻尼力被处理为多项式形式。通过Galerkin离散化和谐波平衡法(HBM)研究了嵌入不同NiTi-ST的光束的响应。讨论了多项式模型的项。利用两种数值方法进行稳态响应和数值验证。仿真结果证明了NiTi-ST的有效性。这种减振方法可以推广到其他层压结构,并有助于工程领域的振动控制。

更新日期:2021-02-12
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