On the influence of the air flow resistivity on the measurement of the dynamic stiffness of underlays for floating floors

Open Access

Figure 10

Dynamic stiffness per unit area s′ for different values of the stiffness per unit area of the solid structure according to the legend: the exact value, the calculation according to [2] using the standard procedure, the calculation according to the German preamble of [3] (DE), and calculation according to Kraak (22).

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