228_Mechanics Homework Mechanics of Materials Solution

# 228_Mechanics Homework Mechanics of Materials Solution -...

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

This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: PROBLEM 332 3.82 A steel shalt must transmit 150 kW at a speed of 360 rpm. Knowing that G = 77 GPa, design a solid shaft so that the maximum stress will not exceed 50 MPa and the angle of twist in a 2.5m length will not exceed 3°. SOLUTION lsouo‘ W 10: \$53 = 6H2 15 (03 H “25%;?" - 3.972%(0‘5‘ N-m Desl‘jn ‘tor 531255 vigthi'i‘ '3‘" 50 MPQ. = 50"}0‘ PG. N=Tg_g_ . C3=2_T=(2\(3.9789¥l03) L 6' "th?s ” 171: traumas] C : 37.00 Mo‘s m : 5o.c,c,mo“ tn" Desfjn “For anal): o‘P +w'l'51L l9ini'} g? ‘-‘ 3° '-' 52.36:!10‘: wad TL _ 2T1. _.‘ CHE} _ (Zl(3.978‘7x(o'5)(2.5} 90: 5:1" “ rec“ 1TGCP Ff77xto*)(52.3exto") c = 35.4ouo‘5m '-‘ 1.5707 “0-; M? Use Dav/jam Value C: 37.00xl53hn '-' 37.0 mm 3 0i = 2C. = 74.0 mm «C PROBLEM 333 3.83 A steel shaft of 1.5-m length and 48-min diameter is to be used to transmit 36 kW between a motor and a machine tool. Knowing that G = 77 GPa, determine the lowest speed of rotation of the shaft at which the maximum stress will not exceed 60 SOLUTION MPa and the angle of twist will not exceed 2.5". P = samba w) (.2 =5”! -— 0.02.qu L: ”Wu G- =77w0" P Tiamvc bases-p 0n WWI-mum shoes: f“: 60 M136; = GOKIO‘ Pa 7::- %¢— ' T = J57; : §c3fz l£(0.02'+)3(6.0xl0:) = 1.230288%“): N'M Tenet): based, an +m‘si dangle (P = 2.5-0 = 43.G33 V10‘3 NJ GP -.-. 11-. .-. T: J50 = “W, 77 0-02? " 77*qu 43.433163) 5: L 2L (”(1.5) = mar/'30 no" U-M Sit-wiper inning jouems T= 1.16730Xl03 M-m = =__E_ 1. miﬂﬂnm - M TD Zﬂ‘FT *2 21T 'Z‘It'UJe'JSOxlo’) ‘- 4‘6” Z i_i;li_ig ...
View Full Document

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern