Abstract: An apparatus is described for detecting the early signs of cycle-induced fatigue and thereby predicting failure of the rotating disk in turbo-machinery. It identifies asymmetrical growth of hub-blade diameter as a predictor of incipient crack growth. Tip measurements are processed through specialized algorithms to detect such asymmetry during operation, providing a real-time, non-destructive method of prediction. The sensors can be housed within the machinery case, and are capable of operating in harsh environments while maintaining adequate stand-off distance, making the entire apparatus robust enough for conditions in high-speed turbo-machinery.

Abstract: A comminuting and distribution device for recycling yard waste is provided. The device includes a mixing tank mounted on an upper surface of a movable support structure. The mixing tank includes a slurry preparation structure therein for creating a slurry from yard waste and fluid deposited within the mixing tank. A distribution structure draws the slurry from a mixing tank and distributes the same to a desired location outside the mixing tank for fertilizing a lawn, garden or the like.