Timeline for Why do new engines have a case with a triangular tiling pattern?
Current License: CC BY-SA 4.0
11 events
| when toggle format | what | by | license | comment | |
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| Nov 24, 2020 at 14:08 | comment | added | Guy Inchbald | @Gypaets Thank you, that makes sense. | |
| Nov 24, 2020 at 12:34 | comment | added | Gypaets | @MikeBrockington "...cannot carry loads ... as the isogrid skin does". The skin will obviously transmit some aerodynamic loads to the primary structure, but it is not part of it. | |
| Nov 24, 2020 at 12:03 | comment | added | MikeB | "The skin of the three examples ... cannot carry loads" - Not correct. A skin of doped canvas, or of plywood, or whatever else, may have less strength than metal, but in both cases it is the COMBINATION of both that complements the particular characteristics of each. | |
| Nov 24, 2020 at 11:17 | comment | added | Gypaets | @GuyInchbald They're optically very similar, but see my comment before. The skin of the three examples you mention is mostly fabric and cannot carry loads as the isogrid skin does. From a structural point of view one is a frame structure while the other is a stiffened shell. | |
| Nov 24, 2020 at 10:00 | comment | added | Guy Inchbald | The isogrid principle appears identical to the geodesic or geodetic construction of the R100 airship, Wellington bomber and Buckminster Fuller's domes. Is there any definitive difference? | |
| Nov 23, 2020 at 23:51 | comment | added | Gypaets | @MikeBrockington That was a geodetic airframe, like the airship S.L.1. I don't consider them to be the equivalent structures because isogrid structures consist of a load-carrying skin with stiffeners forming triangles, while geodetic ones are a frame structure with many rectangles and mostly a non carrying skin like fabric. | |
| Nov 23, 2020 at 19:56 | comment | added | MikeB | I think we can go further back than NASA - how about the Vickers Wellington, for example? | |
| Nov 23, 2020 at 5:52 | history | edited | Gypaets | CC BY-SA 4.0 |
added 224 characters in body
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| Nov 23, 2020 at 5:46 | vote | accept | Roh | ||
| Nov 22, 2020 at 17:23 | comment | added | Jpe61 | Damn you, you remembered the isogrid, totally escaped my stress-demented mind 😃 I think in the case of these jet engines, the manufacturing costs are not huge if we think about the viable options that fullfill the design goals: there might be none, actually. | |
| Nov 22, 2020 at 16:08 | history | answered | Gypaets | CC BY-SA 4.0 |