University:
Michigan State University
Course:
ERG 160 | Success in Science, Technology, Engineering, and Mathematics
Academic year:

2024
Views:

500

Pages:

1
Author:

Nicole Wang

COSMOS: Complete Online Solutions Manual Organization System Chapter 9, Solution 93. From Problems 9.73 and 9.81 I xy = 138.24 × 106 mm 4 I x = 51.84π × 106 mm 4 = 162.86 × 106 mm 4 I y = 103.68π × 106 mm 4 = 325.72 × 106 mm 4 I ave = Now 1 Ix + I y 2 ( ) = 244.29 × 106 mm 4 2 R=  Ix − I y  2   + I xy 2   = 160.4405 × 106 mm 4 2θ m = 59.5° From Problem 9.87 Then Then α = 180 − 60° − 2θ m = 60.5° I x′ = I ave + R cos α = ( 244.29 + 160.4405cos 60.5° ) × 106 = 323.29 × 106 mm 4 or I x′ = 323 × 106 mm 4 I y′ = I ave − R cos α = ( 244.24 − 160.4405cos 60.5° ) × 106 = 165.29 × 106 mm 4 or I y′ = 165.3 × 106 mm 4 I x′y′ = R sin α = 160.44 × 106 sin 60.5° = 139.6 × 106 mm 4

COSMOS Chapter 9 Solution 93

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