# Tag Info

## New answers tagged modeling

2

Not only can this be done, but it also is done for concrete structures all the time. The shear reinforcement in concrete beams is calculated using Mörsch's truss analogy model: Source The concrete beam is simplified into a truss, where the upper chord (under compression) is the concrete itself, the lower chord (under tension) is the longitudinal ...

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How do I proceed with finding the transfer function? The concept of (Laplace transform) transfer functions are applicable for linear systems. So, you need to linearise your equations of motion. Linearisation uses the concept of Taylor series. In the example given in your question, that reduces to removing the term $\dot{\theta}^2$. This comes from the ...

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Found the solution. Looks like there is a bug in Nastran where if it doesnt see enough space in your C: drive (even if your scratch directory is in your D: drive), it just hangs. Once I cleared out some space in my C: drive (AND restarted my computer) then it started working.

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