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Optimal NiTi hybrid tendon system for structural vibration control

机译：用于结构振动控制的最佳NITI混合肌腱系统

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Recent developments in the new field of auto-adaptive materials offer promising opportunities for developing radically new fastening mechanisms. One of the classes of materials in this category is Shape Memory Alloys (SMAs). SMAs are very attractive for structural application because of their major constitutive behaviors such as pseudoelastic characteristic. Pseudoelastic behavior of NiTi SMAs is a unique hysteretic energy dissipation behavior that combined with a very long fatigue life makes SMAs a viable candidate for developing new fasteners. Pseudoelastic behavior of Shape Memory Alloys, particularly NiTi, can be used for developing passive fastening-mechanisms and tendon-systems. In case of coastal structures, where hurricane destruction inflicted upon residential structures results in millions of dollars in financial damages and loss of lives each year, development of more effective fastening-mechanisms and tendon-systems for the connections between the walls and the roofs will aid in damage reduction. A study carried out by the authors has shown that the extent of damping effect of a hybrid tendon-system, made of rigid and NiTi sections directly depends on the length-ratio of the rigid to NiTi section, tendon diameter and the amount of pre-strain on the tendon. Moreover, because of tendon-system passive design the nature of excitation has a profound effect on its activation and damping capability. In this paper effectiveness of a hybrid NiTi tendon-system for damage mitigation of coastal structures and optimal hybrid tendon length-ratio are studied.
机译：在自适应材料的新领域的最新发展前途的报价为开发全新的固定机构的机会。之一的材料这一类中的类的是形状记忆合金（形状记忆合金）。形状记忆合金是因为它们的主要组成行为，如拟弹性特征的结构性应用非常有吸引力。 NiTi形状记忆合金拟弹性行为是一种独特的滞回耗能行为具有非常长的疲劳寿命相结合，使得形状记忆合金用于开发新的紧固件可行的候选者。形状记忆合金，镍钛特别的伪弹性行为，可以用于开发被动紧固机制和肌腱的系统。在海岸结构，在飓风摧毁了数百万美元的经济损失和生命损失，每年造成在住宅结构的结果，更有效的紧固机制和肌腱系统的墙壁之间的连接和屋顶将有助于发展的情况下，在减少损伤。一项研究进行由作者表明阻尼混合腱的系统中，直接由刚性和镍钛部分的效果的程度取决于在刚性至镍钛部，腱直径的长度比和前的量应变的肌腱。此外，由于腱系统被动的设计激发的性质在其活化和阻尼能力产生深远的影响。在混合的NiTi腱系统沿海结构和最佳混合腱长度比的减轻损失本文有效性进行了研究。

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