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- Users: FEAster_man
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Vibration and Shock Analysis
1) For SDOF this is true. For more complex structures it depends. If that's a primary mode, it's probably true in vast majority of cases. But for example if your local mode that you pushed above 250Hz starts to couple with some other modes, now the overall response can be more severe (at least...- FEAster_man
- Post #2
- Forum: Spacecraft engineering
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Factor of Safety design in space craft structures
Platypusimon, Your method 2 is more common notation, but essentially it gives the same answer as method 1. The thing is that in the method 1 your 2.5 factor is not a FOS, but another value, let's call it factor of safety margin. If you divide it by FOS 1.25 (instead of simply comparing the two...- FEAster_man
- Post #11
- Forum: Spacecraft engineering
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beam with nonlinear material
Hi, In SOL401 (possibly other solvers as well) you have to define the beam property as PBEAML instead of PBEAM to account for nonlinear material. When you define the beam cross section in the upper right corner you can choose between Standard and Nastran definition and then choose the...- FEAster_man
- Post #2
- Forum: Siemens: Femap
