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1. 发明授权

US5820346A Blade damper for a turbine engine 失效
标题翻译：用于涡轮发动机的叶片阻尼器
公开(公告)号：US5820346A
公开(公告)日：1998-10-13
申请号：US767931
申请日：1996-12-17
申请人： Kurt E. Young , Robert B. Dickman , Jan C. Schilling , Terry E. Buerkle
发明人： Kurt E. Young , Robert B. Dickman , Jan C. Schilling , Terry E. Buerkle
IPC分类号： F01D5/22 , F01D5/10
CPC分类号： F01D5/22 , Y10S416/50
摘要： A damper which provides both blade to blade and blade to ground damping is described. In one embodiment, the damper includes a retainer and a chicklet. The retainer is secured to a rotor disk by a bolt which extends through an opening in the disk and an opening in the retainer. The retainer includes support flanges which facilitate positioning retainer relative to the disk, and sidewalls (or guides) for limiting movement of the chicklet. The chicklet is movably positioned within the retainer, and movement of the chicklet is limited by sidewalls and a cross wall member of the retainer. The retainer positions the chicklet so that in operation, a contact surface of chicklet makes blade to blade contact with adjacent blades. In operation, centrifugal forces drive the chicklet into contact with the blade platforms. Since the chicklet is in contact with adjacent blades, blade to blade damping is provided. Further, due to the geometric configuration of the contact surfaces of the chicklet, the chicklet tends to travel upward along the underside of the platform. As the chicklet slides upward and rearward on the platform, the chicklet contacts the cross wall member of the retainer, and since the retainer is secured to the disk, blade to ground damping is provided by the damper.
摘要翻译：描述了提供叶片与叶片和叶片对地阻尼的阻尼器。在一个实施例中，阻尼器包括保持器和小鸡。保持器通过延伸穿过盘中的开口的螺栓和保持器中的开口固定到转子盘。保持器包括有助于相对于盘定位保持器的支撑凸缘和用于限制小鸡的运动的侧壁（或引导件）。小鸡可移动地定位在保持器内，并且小鸡的运动受到保持器的侧壁和横壁构件的限制。保持器定位小鸡，使得在操作中，小鸡的接触表面使叶片与刀片接触。在操作中，离心力驱动小鸡与刀片平台接触。由于小鸡与相邻的叶片接触，所以提供叶片到叶片的阻尼。此外，由于小鸡的接触表面的几何构型，小鸡倾向于沿着平台的下侧向上移动。当小鸡在平台上向上和向后滑动时，小鸡接触保持器的横壁构件，并且由于保持器固定到盘上，所以通过阻尼器提供叶片对地阻尼。

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