[xeonmc]

Earthquake resistance of buildings. See Incan usage of aperiodic masonry to spread out the frequency response of the construction.

Similar principle with Apple's laptop fan blades.

Same mechanism might be responsible for the Boson peak phenomena in amorphous materials and quasicrystals, where the macro-structure creates extra capacity for absorbing lower-than-lattice-frequency vibrations than what the crystal-structure alone predicts.

It's all about Fourier analysis.