Calculate the void ratio that corresponds to a pressure 6 ton / ft 2 .

Question

For the system shown in Figure 2, u(t) and y(t) denote the absolute displacements of Building A and Building B, respectively. The two buildings are connected using a linear viscous damper with damping coefficient c. Due to construction activity, the floor mass of Building B was estimated that vibrates with harmonic displacement that is described by the following function: y(t) = yocos(2πft). Figure 2: Single-degree-of-freedom system in Problem 2. Please compute the following related to Building A: (a) Derive the equation of motion of the mass m. (20 points) (b) Find the expression of the amplitude of the steady-state displacement of the mass m. (10 points

Answer 1

Question

Chapter 11, Problem 11.12P

(a)

To determine

Calculate the void ratio that corresponds to a pressure 6 ton/ft2.

(b)

To determine

Calculate the void ratio at a pressure of 1.5 ton/ft2.

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