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Study of pseudoelastic systems for the design of complex passive dampers: static analysis and modeling

机译：复杂被动阻尼器设计的拟弹性系统研究：静态分析与建模

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This work presents an experimental and numerical analysis of several parallel systems of NiTi pseudoelastic wires. Standard tensile tests were accomplished to evaluate the global damping capacity, the energy dissipated per cycle and the maximum attenuated force in a static condition. Besides, a numerical model was implemented to predict the damping response of more complex pseudoelastic arrangements. It was found a damping capacity upper limit of 0.09 regardless the number and the length of the NiTi components. In addition, it was found that the energy dissipated per cycle is related to the strain and to the number of the NiTi components; furthermore, the system composed of NiTi wires with different length allows for an elastic region that is related to the numbers of wires and that presents a modulation of the stiffness. Finally, the proposed numerical model allows a precise design of complex pseudoelastic combinations as it is able to represent the rhombohedral characteristic.
机译：这项工作提出了几个平行的NiTi伪弹性线系统的实验和数值分析。完成了标准拉伸试验，以评估整体阻尼能力，每个周期耗散的能量以及静态条件下的最大衰减力。此外，还建立了一个数值模型来预测更复杂的拟弹性布置的阻尼响应。发现阻尼容量上限为0.09，与NiTi组分的数量和长度无关。另外，发现每个循环耗散的能量与应变和NiTi组分的数量有关。此外，由具有不同长度的NiTi线组成的系统允许与线的数量有关并且呈现出刚度调制的弹性区域。最后，所提出的数值模型可以精确地设计复杂的伪弹性组合，因为它能够表示菱形体特征。

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