The Effect of Uncertainty in the Excitation on the Vibration Input Power to a Structure

Figure 4

The normalised input power to an infinite plate subjected to four harmonic unit point forces with various phases (grey lines): −− mean, −⋅− mean ± standard deviation, — (thick lines) max/min bounds, — mean ± bounds of standard deviation, and ⋯ mean ± bounds of standard deviation due to uncertainty in 𝑘𝐿.