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Abbreviations for 10 types of design problems
| Engineering function (EF) | Type of problem |
|---|---|
| EF1 | 3-bar truss problem |
| EF2 | Pressure vessel |
| EF3 | Compression design |
| EF4 | Welded beam |
| EF5 | Cantilever beam design |
| EF6 | Gear train |
| EF7 | Speed reducer problem |
| EF8 | Belleville spring |
| EF9 | Rolling element bearing |
| EF10 | Multiple disk clutch brake (discrete variables) |
