{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

ExamSolution2 - ME471 Exam 2 NAME Closed book and notes May...

Info icon This preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
Image of page 3

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: ME471 Exam 2 NAME Closed book and notes. May use ONE 8.5xll in page of your own notes Problem 1 The l in diameter shaft in the figure is supported at one end by a frictionless bearing and at the other by a clutch that prevents it from rotating. The shaft supports two 4 in radius pulleys, each carrying loads as shown. Here you may ignore shear due to bending 1. Sketch in the space below the shear stress (V) and the bending moment (M) diagrams for bending in the XY and the X2 planes AND the torsion (T) diagram. t—w—«wwwa 21463 24+ (22;: foot) lo a 900:: 1322, Bending in XY plane V 200 Frictionless bearing 2;:400 {2F5 9160 all? M PaWa 43151) ‘30be er W92? 0 Bending in X2 plane Cloanédvéoox 4’ r: 6000 “$0. continues lfifbfi £1: ME471 Exam 2 NAME Closed book and notes. May use ONE 8.5x11 in page of your own notes 2. Compute the maximum bending stress (6) and torsion shear stress (T) in section at x=10 Enter your result in the space below. AT sci-no HUM) =25!) waié’m ’7’: £005 is,“ W '- MA’XL U” P2000065) B25 M24 23003.}, ‘mt " ZJBQO l‘e—am M 32, 04.: .. MH , guess): 2%4 £5) C= 3—: ; 193" ,2 iétsom) 306 m {5/10 ff$3 my?) a Atx=10 5: 2%,4 K5! T: 30%» K5) 3. Compute the principal stresses at the critical position in the cross section at x=10. Ignore shear stresses due to bending. 'L L . ’ 075),: (93:) f \[a +£g)L M é {2:5er W‘iwtfiza‘t? Atx=10 a, = 4 2r. 2 w a: «rage, ME471 Exam 2 NAME Closed book and notes. May use ONE 8.5x11 in page of your own notes Problem 2 Referring to the figure, which of the stress corn orients c 6 oz ‘Cx In or 1: Z in the stress X Y Y Y 0' T T x xy xz matrix 0 = Txy O'y Tyz is NOT zero?. sz Ty: 0': Answer by entering an “X” in the location in the matrix where the stress component is not zero. You must consider all axial, bending, torsion and shear due to bending possibilities. DO NOT GUESS: an X in the wrong location will count against a correct answer! 1. At position A non—zero entries are: 6 = 2. At position B non-zero entries are: 6 = i 3. At position C non-zero entries are: (I = >\ {X l crow ggwmer (mwgprowreh Mrs 15 w x! Diner/“nevi Bessemer 80'3" B—AT‘ meat #21:: =35 039 ”(023154 W 5% BENDNG/r we TBQSKN 29/. ME471 Exam 2 NAME Closed book and notes. May use ONE 8.5xll in page of your own notes Problem 3. The shaft in the figure is is static equilibrium under the loads P and Qand R, which may cause bending, axial and/or torsional stresses at positions A, B, C and D. frictionless Use the matrix below to state which type of bearing stress is caused by each load at each point, by entering the words “BENDING”, “AXIAL” and/or “TORSION” in the corresponiding box. frictionl bearing DO NOT GUESS: an entry in the wrong location will count against a correct answer! Position A Position B Position C Position D Load P E B T T Load Q E E s T HLoad R A fie ‘ A A ...
View Full Document

{[ snackBarMessage ]}