5/23/22, 4:01 PM The Figure Shows A 400-mm Diameter Brake Drum With... | Chegg.com Home Study tools My courses My books My folder Career Life Search Find solutions for your homework home / study / engineering / mechanical engineering / mechanical engineering questions and answers / the figure shows a 400-mm diameter brake … Question: The figure shows a 400-mm diameter brake drum with four inte… Post a question Answers from our experts for your tough homework questions Enter question Continue to post 20 questions remaining My Textbook Solutions Show transcribed image text Expert Answer Shigley's... Fundament... Fundament... 9th Edition 4th Edition 4th Edition View all solutions Anonymous answered this 66 answers Was this answer helpful? 0 0 ANSWER https://www.chegg.com/homework-help/questions-and-answers/figure-shows-400-mm-diameter-brake-drum-four-internally-expanding-shoes-hinge-pin… 1/4 5/23/22, 4:01 PM The Figure Shows A 400-mm Diameter Brake Drum With... | Chegg.com Home Study tools My courses My books My folder Career Life https://www.chegg.com/homework-help/questions-and-answers/figure-shows-400-mm-diameter-brake-drum-four-internally-expanding-shoes-hinge-pin… 2/4 5/23/22, 4:01 PM Comment Home Study tools My courses My books My folder Career Life The Figure Shows A 400-mm Diameter Brake Drum With... | Chegg.com Practice with similar questions Q: The figure shows a 400-mm-diameter brake drum with four internally expanding shoes. Each of the hinge pins A and B supports a pair of shoes. The actuating mechanism is to be arranged to produce the same force F on each shoe. The face width of the shoes is 75 mm The material used permits a coefficient of friction of 0.26 and a maximum pressure of 1,300 kPa. A: See answer Q: The figure shows a 400-mm-diameter brake drum with four internally expanding shoes. Each of the hinge pins A and B supports a pair of shoes. The actuating mechanism is to be arranged to produce the same force F on each shoe. The face width of the shoes is 75 mm. The material used permits a coefficient of friction of 0.24 and a maximum pressure of 1000 kPa. (a) Determine the... A: See answer Show more Questions viewed by other students Q: The figure shows a 400-mm-diameter brake drum with four internally expanding shoes. Each of the hinge pins A and B supports a pair of shoes. The actuating mechanism is to be arranged to produce the same force F on each shoe. The face width of the shoes is 75 mm The material used permits a coefficient of friction of 0.26 and a maximum pressure of 1,300 kPa. A: See answer https://www.chegg.com/homework-help/questions-and-answers/figure-shows-400-mm-diameter-brake-drum-four-internally-expanding-shoes-hinge-pin… 3/4 5/23/22, 4:01 PM The Figure Shows A 400-mm Diameter Brake Drum With... | Chegg.com Q: The figure shows a 400-mm-diameter brake drum with four internally expanding shoes. Each of the hinge pins A and B actuating mechanism is to be arranged to produce the same force F on each shoe. The supports a pair of shoes. HomeThe Study tools My courses My books My folder Career Life face width of the shoes is 75 mm. The material used permits a coefficient of friction of 0.24 and a maximum pressure of 1000 kPa. (a) Determine the... 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All rights reserved. https://www.chegg.com/homework-help/questions-and-answers/figure-shows-400-mm-diameter-brake-drum-four-internally-expanding-shoes-hinge-pin… 4/4 5/23/22, 4:00 PM Solved: The figure shows a 400-mm-diameter brake drum with four... | Chegg.com Home Study tools My courses My books My folder Career Life Search Find solutions for your homework home / study / engineering / mechanical engineering / machine design / machine design solutions manuals / shigley's mechanical engineering design / 9th edition / chapter 16 / problem 4p Shigley's Mechanical Engineering Design Post a question Answers from our experts for your tough homework questions (9th Edition) Bookmark Chapter 16, Problem 4P Show all steps: ON Enter question Problem Continue to post 20 questions remaining The figure shows a 400-mm-diameter brake drum with four internally expanding shoes. Each of the hinge pins A and B supports a pair of shoes. The actuating mechanism is to be arranged to produce the same force F on each shoe. The face width of the shoes is 75 mm. The material used permits a coefficient of friction of 0.24 and a maximum pressure of 1000 kPa . My Textbook Solutions Shigley's Mechanical... Fundamental Fundamental s of... s of... 9th Edition 4th Edition 4th Edition View all solutions (a) Determine the actuating force. (b) Estimate the brake capacity. (c) Noting that rotation may be in either direction, estimate the hinge-pin reactions. Step-by-step solution Step 1 of 11 Given: Diameter of the brake drum, Face width of the shoe, Coefficient of the friction, Maximum pressure, And Comment Step 2 of 11 a) The moment of frictional forces, Where https://www.chegg.com/homework-help/figure-shows-400-mm-diameter-brake-drum-four-internally-expa-chapter-16-problem-4p-solution-97800735292… 1/5 5/23/22, 4:00 PM Solved: The figure shows a 400-mm-diameter brake drum with four... | Chegg.com Comment Home Study tools My courses My books My folder Career Life Step 3 of 11 The moment of normal forces, The actuating force is given by The actuating force, Comment Step 4 of 11 b) The torque applied by the primary shoe is given by For the secondary shoe, The moment of frictional forces, The moment of normal forces, Actuating force, Comment Step 5 of 11 The torque applied by the secondary shoe is given by The total braking capacity https://www.chegg.com/homework-help/figure-shows-400-mm-diameter-brake-drum-four-internally-expa-chapter-16-problem-4p-solution-97800735292… 2/5 5/23/22, 4:00 PM Solved: The figure shows a 400-mm-diameter brake drum with four... | Chegg.com Home Study tools My courses My books My folder Career Life Brake capacity, Comment Step 6 of 11 c) For primary shoes Reactions on hinge pin are given by Where And Comment Step 7 of 11 Horizontal reaction, Horizontal reaction on primary shoe, Comment Step 8 of 11 Vertical reaction, Vertical reaction on primary shoe, Comment Step 9 of 11 For secondary shoes: Reactions on hinge pin are given by Horizontal reaction, https://www.chegg.com/homework-help/figure-shows-400-mm-diameter-brake-drum-four-internally-expa-chapter-16-problem-4p-solution-97800735292… 3/5 5/23/22, 4:00 PM Solved: The figure shows a 400-mm-diameter brake drum with four... | Chegg.com Home Study tools My courses My books My folder Career Life Horizontal reaction on secondary shoe, Comment Step 10 of 11 Vertical reaction, Vertical reaction on secondary shoe, Comment Step 11 of 11 Net horizontal reaction, Net vertical reaction, Resultant reaction, Resultant reaction, Comment Was this solution helpful? 27 2 Recommended solutions for you in Chapter 16 https://www.chegg.com/homework-help/figure-shows-400-mm-diameter-brake-drum-four-internally-expa-chapter-16-problem-4p-solution-97800735292… 4/5 5/23/22, 4:00 PM Solved: The figure shows a 400-mm-diameter brake drum with four... | Chegg.com Chapter 16,Home Problem 9P Study tools My courses Chapter 16, Problem My books My5Pfolder The shoes on the brake depicted in the figure subtend a 90 arc on the drum of this external pivoted-shoe brake. The actuation... The block-type hand brake shown in the figure has a face width of 1.25 in and a mean coefficient of friction of 0.25. For an... See solution See solution COMPANY LEGAL & POLICIES CHEGG PRODUCTS AND SERVICES About Chegg Chegg For Good College Marketing Corporate Development Investor Relations Jobs Join Our Affiliate Program Media Center Site Map Advertising Choices Cookie Notice General Policies Intellectual Property Rights Terms of Use Global Privacy Policy DO NOT SELL MY INFO Honor Code Honor Shield Cheap Textbooks Chegg Coupon Chegg Play Chegg Study Help College Textbooks eTextbooks Flashcards Learn Uversity Career Chegg Math Solver Mobile Apps Sell Textbooks Solutions Manual Study 101 Textbook Rental Used Textbooks Digital Access Codes Chegg Life Chegg Writing Life CHEGG NETWORK CUSTOMER SERVICE EasyBib Internships.com Thinkful Customer Service Give Us Feedback Manage Subscription © 2003-2022 Chegg Inc. All rights reserved. https://www.chegg.com/homework-help/figure-shows-400-mm-diameter-brake-drum-four-internally-expa-chapter-16-problem-4p-solution-97800735292… 5/5 5/23/22, 4:01 PM The figure shows a 400-mm-diameter brake drum with four internally expanding shoes. Each of the hinge pins A and B supports a… (https://holooly.com) CHAPTER 16 Q. 16.4 Shigley’s Mechanical Engineering Design – Solution Manual [EXP-48072] (https://holooly.com/sources/shigleys-mechanicalengineering-design-solution-manual-exp-48072/) The figure shows a 400-mm-diameter brake drum with four internally expanding shoes. Each of the hinge pins A and B supports a pair of shoes. The actuating mechanism is to be arranged to produce the same force F on each shoe. The face width of the shoes is 75 mm. The material used permits a coefficient of friction of 0.24 and a maximum pressure of 1000 kPa. (a) Determine the actuating force. (b) Estimate the brake capacity. (c) Noting that rotation may be in either direction, estimate the hinge-pin reactions. Step-by-Step Report Solution (https://holooly.com/report-a-problem/) Verified Solution (a) Given: θ1 = 10∘ , θ2 = 75∘ , θa = 75∘ , pa = 106 P a, f = 0.24, b = 0.075 m (shoe width), a = 0.150 m, r = 0.200 m, d = 0.050 m, c = 0.165 m. Some of the terms needed are evaluated here: A = [r ∫ θ2 θ1 sin θdθ − a ∫ θ2 θ1 θ2 1 sin θ cos θdθ] = r[− cos θ]θθ21 − a [ sin2 θ] 2 θ1 75∘ ∘ 1 2 = 200[− cos θ]75 = 77.5 mm 10∘ − 150 [ sin θ ] 2 10∘ B=∫ C=∫ θ2 sin2 θdθ = [ θ1 θ2 75π/180rad θ 1 − sin 2θ] = 0.528 2 4 10π/180rad sin θ cos θdθ = 0.4514 θ1 Now converting to Pascals and meters, we have from Eq. (16-2), Mf = f pa br sin θa A = 0.24(106 )(0.075)(0.200) (0.0775) sin 75∘ = 289 N ⋅ m 106 (0.075)(0.200)(0.150) (0.528) sin 75∘ = 1230 N ⋅ m From Eq. (16-3), MN = pa bra sin θa B = Finally, using Eq. (16-4), we have F = MN −Mf c = 1230−289 165 = 5.70 kN (b) Use Eq. (16-6) for the primary shoe. f pa br2 (cos θ1 − cos θ2 ) sin θa 0.24 (106 ) (0.075)(0.200)2 (cos 10∘ − cos 75∘ ) = = 541 N ⋅ m sin 75∘ For the secondary shoe, we must first find pa . Substituting https://holooly.com/solutions/the-figure-shows-a-400-mm-diameter-brake-drum-with-four-internally-expanding-shoes-each-of-the-hinge-pins-a-and-b-su… 1/3 T = 5/23/22, 4:01 PM The figure shows a 400-mm-diameter brake drum with four internally expanding shoes. Each of the hinge pins A and B supports a… For the secondary shoe, we must first find pa . Substituting MN = (https://holooly.com) 1230 289 5.70 = 106 pa and Mf = 106 (1230/106 )pa +(289/106 )pa 165 pa into Eq. (16 – 7), pa = 619 (103 ) P a , solving gives Then T = 0.24[619(103 )]0.075(0.2002 )(cos 10∘ −cos 75∘ ) sin 75∘ so the braking capacity is Ttotal = 335 N ⋅ m = 2(541) + 2(335) = 1750 N ⋅ m (c) Primary shoes: pa br (C − f B) − Fx sin θa 6 10 (0.075)0.200 = [0.4514 − 0.24(0.528)] (10−3 ) − 5.70 = −0.658 kN sin 75∘ Rx = pa br (B + f C) − Fy sin θa 6 10 (0.075)0.200 = [0.528 + 0.24(0.4514)] (10−3 ) − 0 = 9.88 kN sin 75∘ Ry = Secondary shoes: pa br (C + f B) − Fx sin θa 0.619 (106 ) 0.075(0.200) = [0.4514 + 0.24(0.528)] (10−3 ) − 5.70 sin 75∘ = −0.143 kN Rx = pa br (B − f C) − Fy sin θa 0.619 (106 ) 0.075(0.200) = [0.528 − 0.24(0.4514)] (10−3 ) − 0 sin 75∘ = 4.03 kN Ry = Note from figure that +y for secondary shoe is opposite to +y for primary shoe. Combining horizontal and vertical components, RH = −0.658 − 0.143 = −0.801 kN RV = 9.88 − 4.03 = 5.85 kN R= (−0.801)2 + 5.852 = 5.90 kN ________________________________________________________________________________________________ ____________________________ Eq. (16-2): Mf Eq. (16-3): Eq. (16-4): Eq. (16-6): f pa br sin θa = ∫ f dN (r − a cos θ) = MN = ∫ dN (a sin θ) = F = MN −Mf c θ pa bra θ2 sin θa ∫θ1 ∫θ12 sin θ(r − a cos θ)dθ sin2 θdθ f pa br2 θ2 ∫ sin θdθ sin θa θ1 2 f pa br (cos θ1 − cos θ2 ) = sin θa T = ∫ f rdN = Eq. (16-7): F = MN +Mf c https://holooly.com/solutions/the-figure-shows-a-400-mm-diameter-brake-drum-with-four-internally-expanding-shoes-each-of-the-hinge-pins-a-and-b-su… 2/3 5/23/22, 4:01 PM The figure shows a 400-mm-diameter brake drum with four internally expanding shoes. Each of the hinge pins A and B supports a… (https://holooly.com) Scan the QR Code To Continue Browsing on Your mobile Device. 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