Torsional flexible links are essential for torque transmission in many industrial applications, such as automotive powertrains and turbomachinery. This work develops the formulation of a linear spring element attached between two rotating tracks. Then, the combination of elements is discussed, by generating torque curves that may present regions quasi-zero stiffness (QZS), negative stiffness, as well as a softening or hardening behavior. Each case is tested on a single degree-of-freedom system under base excitation. The results indicate that the modification on link parameters result in a huge variety of nonlinear responses, such as changes on the harmonic content and possible hysteresis effects according to the frequency of excitation.

扭转柔性链节对于许多工业应用（例如汽车动力总成和涡轮机械）中的扭矩传递至关重要。这项工作开发了在两个旋转轨道之间连接的线性弹簧元件的配方。然后，通过生成可能呈现出准零刚度（QZS），负刚度以及软化或硬化行为的扭矩曲线来讨论元素的组合。在基本激励下，在单个自由度系统上测试每种情况。结果表明，对链接参数的修改会导致各种各样的非线性响应，例如谐波含量的变化以及根据激励频率可能产生的磁滞效应。