Fretting in aircraft turbine engines

The problem of fretting in aircraft turbine engines is discussed. Critical fretting can occur on fan, compressor, and turbine blade mountings, as well as on splines, rolling element bearing races, and secondary sealing elements of face type seals. Structural fatigue failures have been shown to occur at fretted areas on component parts. Methods used by designers to reduce the effects of fretting are given

Gas path seal

A gas path seal suitable for use with a turbine engine or compressor is described. A shroud wearable or abradable by the abrasion of the rotor blades of the turbine or compressor shrouds the rotor bades. A compliant backing surrounds the shroud. The backing is a yieldingly deformable porous material covered with a thin ductile layer. A mounting fixture surrounds the backing

The Younger Generation

Sammy and a teddy-bear ride down the not-too empty street )his nephews looking on) in an ancient, Bucking..

Idea Fare

A Modular Display Stand - a modular exhibit designed by Bill Johnson, CA, can be built inexpensively by most anyon

Limit

He walked down through an April world of majestic winds and high-blown skirts and shaded buildings and children sending cheerful kits of red and yellow and orange into a flawless sky, and fountains splashing time-flowing mists across shattered ponds, and drooping old men with blurred and distant eyes,..

Through Life\u27s Changes, God Provides: Bill\u27s Story

A first-person narrative about life in Dayton, Ohio, composed as part of the Facing Project, a nationwide storytelling initiative