Page 142 - Thomson, William Tyrrell-Theory of Vibration with Applications-Taylor _ Francis (2010)
P. 142
Chap. 4 Problems 129
4-44 Using RUNGA, solve the equation
i + 1.26i + 9.87x =f(t)
for the force pulses shown in Fig. P4-44.
Figure P4-44.
4-45 A large box of weight W resting on a barge is to be hoisted by a crane, as shown in Fig.
P4-45. Assuming the stiffness of the crane boom to be determine the equation of
motion if the extended point of the boom is given a displacement x = Vt. Use the
method of Laplace transformation.
Figure P4-45.
4-46 In Example 4.8-1 add damping of c = 0.2c^ and solve using computer program
RUNGA. Compare response with Example 4.8-1.
