Question

10. A cast iron wheel of mean diameter 3 metre has six
arms of elliptical section. The energy to be stored

in it is 560 kN-m when rotating at 120 r.p.m. The speed of the mean
diameter is 18 m/s. Calculate the

following:

(a)Assuming that the whole energy is stored in the rim, find the
cross-section, if the width is 300 mm.

(b)Find the cross-section of the arms near the boss on the
assumption that their resistance to bending

is equal to the torsional resistance of the shaft which is 130 mm
in diameter.

The maximum shear stress in the shaft is to be within 63 MPa and
the tensile stress 16 MPa. Assume

the minor axis of the ellipse to be 0.65 major axis.

Answer #1

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 1 minute ago

asked 1 minute ago

asked 12 minutes ago

asked 16 minutes ago

asked 24 minutes ago

asked 24 minutes ago

asked 24 minutes ago

asked 24 minutes ago

asked 26 minutes ago

asked 32 minutes ago

asked 37 minutes ago

asked 58 minutes ago