2. Benchmark solution

2.1. Calculation method used for the reference solution

The reference solution is the one given in sheet SDLX01 /89 of the guide VPCS, which presents the calculation method as follows:

Dynamic stiffness method (Theory of slender beams)

2.2. Benchmark results

13 first natural frequencies.

2.3. Uncertainty about the solution

\((\Delta f/f)<0.5\text{ \% }\).

2.4. Bibliographical references

• 10. PIRANDA. Structural vibration courses and tutorials. Mechanical option. National School of Mechanics and Micromechanics. Applied Mechanics Laboratory. Besancon (France) (1983).