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

Figure 16

The normalised input power to an infinite plate subjected to two harmonic unit point forces and two harmonic moments: −− mean, — (thick line) max/min bounds; (52), −⋅− mean ± standard deviation and — mean ± bounds of standard deviation; (55), ⋯ mean ± bounds of standard deviation due to uncertainty in 𝑘𝐿 and (56) (𝛼=0.003 m, 𝛽=0.003).