Answer to Question #265581 in Civil and Environmental Engineering for Nishar

Question

A rectangular wooden beam (fb = 5.9 MPa, E = 17.3 GPa) has a cross-sectionalarea of 250 mm

by 500 mm. The length of the beam is 15 meters with pin and roller supports every fifth points. A vibrating

machine weighing 500 kg is located at the mid-lengthof the beam. The machine produces an

unbalanced force of 500 N operating at 300 rpm.Determine the following:

a) maximum static deformation under the weight of the machine,

b) maximum dynamic stress in the beam section under the unbalanced force,

c) force transmitted to the support, and

d) adequacy of the beam against bending. Use a dampingratio of 5%.

Answer 1

the tabular format with all details given below in diagram;