Question

Find the Radial width of the piston ring, when D=250mm, σt=100MPa, and pw=0.03N/mm^2?

(a) 5.5mm

(b) 7.5mm

(c) 4.5mm

(d) 6.5mm

I had been asked this question in my homework.

This question is from IC Engine topic in division Design of IC Engine Components of Automotive Engine Design

Answer 1

The correct choice is (b) 7.5mm

For explanation: b=D\(\sqrt{\frac{3P_w}{\sigma_t}}\)

                          = 150\(\sqrt{\frac{3×0.03}{100}}\)

                          = 7.5mm