1_ch 20 Mechanical Design budynas_SM_ch20

1_ch 20 Mechanical Design budynas_SM_ch20 -...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
(b) f / ( N ± x ) = f / (69 · 10) = f / 690 Eq. (20-9) ¯ x = 8480 69 = 122 . 9 kcycles Eq. (20-10) s x = ± 1 104 600 8480 2 / 69 69 1 ² 1 / 2 = 30.3 kcycles Ans. xff x fx 2 f / ( N ± x ) 60 2 120 7200 0.0029 70 1 70 4900 0.0015 80 3 240 19 200 0.0043 90 5 450 40 500 0.0072 100 8 800 80 000 0.0116 11 01 2 1320 145 200 0.0174 120 6 720 86 400 0.0087 130 10 1300 169 000 0.0145 140 8 1120 156 800 0.0116 150 5 750 112 500 0.0174 160 2 320 51 200
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 12/13/2011 for the course EML 3013 taught by Professor Shingley during the Fall '11 term at UNF.

Ask a homework question - tutors are online