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US07942229B2 Dual-tuned vibration damper and method for damping vibrations in a power transmission system using a dual-tuned vibration damper 有权
双调谐振动阻尼器和使用双调谐振动阻尼器在动力传动系统中阻尼振动的方法

Dual-tuned vibration damper and method for damping vibrations in a power transmission system using a dual-tuned vibration damper
摘要：
A vibration damper includes a hub, a first mass, a first resilient coupling, a second mass, and a second resilient coupling. The first mass is disposed concentrically about the hub. The first resilient coupling resiliently couples the first mass to the hub. The first resilient coupling has a first spring constant. The second mass is disposed concentrically about the first mass. The second resilient coupling resiliently couples the second mass directly to the first mass. The second resilient coupling has a second spring constant that is less than the first spring constant. The first mass and the first resilient coupling are configured to attenuate vibration at a first frequency. The second mass and the second resilient coupling are configured to attenuate vibration at a second frequency. The second frequency is lower than the first frequency.
摘要（中）：

振动阻尼器包括轮毂，第一质量块，第一弹性联轴器，第二质量块和第二弹性联轴器。 第一个质心围绕轮毂同心地设置。 第一弹性联接器将第一质量弹性地联接到轮毂。 第一弹性联轴器具有第一弹簧常数。 第二质量块围绕第一质量块同心地设置。 第二弹性联接器将第二质量块直接弹性地耦合到第一质量块。 第二弹性联接件具有小于第一弹簧常数的第二弹簧常数。 第一质量和第一弹性联接器被配置为在第一频率衰减振动。 第二质量块和第二弹性联接件构造成在第二频率衰减振动。 第二频率低于第一频率。

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