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Scalable Electroactive Polymer for Variable Stiffness Suspensions

机译:可伸缩的电活性聚合物,用于可变刚度的悬浮液

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摘要

We present an approach for creating a reliable variable stiffness suspension using prestretched electroactive polymer films. In comparison to other variable-stiffness devices, the design is compact, lightweight, consumes low energy, and can change its stiffness in approximately 10 ms. Attention to the main causes of failure increases the reliability of the device so that multiple layers can be combined for increased loads and stiffness. A device with 20 layers supports loads of over 15 N at minimum stiffness and maximum voltage for displacements of ±7 mm and up to 138 N at maximum stiffness with a displacement of 20 mm. Multilayer devices have demonstrated 3 million mechanical load cycles and hundreds of thousands of stiffness variation (charging and discharging) cycles, respectively.
机译:我们提出了一种使用预拉伸的电活性聚合物薄膜来创建可靠的可变刚度悬架的方法。与其他可变刚度设备相比,该设计紧凑,轻巧,能耗低,并且可以在大约10毫秒内改变其刚度。注意故障的主要原因会增加设备的可靠性,以便可以组合多层以增加负载和刚度。具有20层的设备在最小刚度和最大电压下可承受超过15 N的负载,位移为±7 mm,在最大刚度下可承受138 N负载,位移为20 mm。多层设备分别展示了300万个机械负载循环和数十万个刚度变化(充电和放电)循环。

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