Hub of an exhaust case comprising stress-distribution ribs
摘要
<p>The hub has a set of bands (14), where bands are placed on the hub by forming angle between tangent and radial direction and the angle ranges between 15 to 75 degrees. A rib (20) is formed at a base of each band below a critical stressed zone (26) in the bands. An upstream rib is connected to an upstream flange (8) at upstream end and a downstream rib is connected to a downstream flange (10) at downstream end. Length of the bands varies so as to project the upstream or downstream flange to a length.</p>
