A bicycle rider would like to compare the effectiveness of cantilever hand brakes [see figure part (a)] versus V brakes [figure part (b)]. (a) Calculate the braking force RB at the wheel rims for each of the bicycle brake systems shown. Assume that all forces act in the plane of the figure and that cable tension T = 45 lbs. Also, what is the average compressive normal stress #c on the brake pad (A 0.625 in2)? (b) For each braking system, what is the stress in the brake cable (assume effective cross-sectional area of 0.00167 in2)

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Q: A stop block, s, prevents a crate from sliding down a = 35.0 incline. (Figure 1) A tensile force F=…

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Q: = 8 kN, T12 = 2 kN, T

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Q: cylinder shown in figure B2a exerts a force of 3 kN đrected to the right on point Band to t If the…

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A: doutdin=NinNout=ToutTin N4N3=d3d4 N3=N4d4d3=100*52=250 rpm Since pulley 2 and 3 are on same shaft…

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Q: For the drum brake shown in the following figure, there is an inner rim diameter of 280 mm and…

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Q: A single block brake, as shown, has a tangential braking force of 2000 N and normal force 6000 N…

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Q: Problem 4 The maximum band interface pressure on the brake shown in the figure is 620 kPa. Use a 350…

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Q: (27) A motor weighing 200 Ib is running at a constant speed of 1800 rpm. If the transmissibility of…

A: Given:m=200 lb =90.7185 KgN=1800 rpmε=0.1

Q: Given the following data, calculate tl pressure and balance ratios (externa for both externally…

A: D=61.8mmB=52.6mmd=49.2mmF=188N To-Find:- Balanced/unbalanced=?

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Q: load of Ft = 700 N comes to the free wheel of a car. The coefficient of friction between road and…

A: Frictional Force on the wheel = 0.8 X 700 = 560 N

Q: 200KN/m Analyze the linear spring system shown in Fig., determine the displacements at all nodes.…

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Q: Consider four springs with spring constants kl 20N/m, K2=50 N/m, K3=100 N/m, K4=200 N/m, What is the…

A: Givenk1=20 N/mk2=50 N/mk3=100 N/mk4=200 N/m

Q: Consider the arrangement of a simple band brake as shown in the figure. Determine the brake torque…

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Q: Learning Goal: To be able to calculate the work done by a couple on a rigid body. When a body…

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Q: For the drum brake figure shown below a) If a couple M of magnitude 1xy N.m is applied to the drum…

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Q: Shown in the figure is a single block brake. The intensity of pressure between the block and brake…

A: Free body diagram of given figure

Q: The figure shows an internal rim-type brake having an inside rim diameter of 11 in and a dimension R…

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A: given; maximum load capacity (w)=?width(b)=25cmlength(l)=67cmthickness(t)=1.15cmdensity(ρ)=2.7g/cm3

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Q: Figure 2.1 shows a wheels vehicle mode. The mass of the vehicle is 1920 kg and the distance between…

A: Given data: Mass of vehicle = M =1920 kgDistance between Centre of mass and front axle = b= 1.5…

Q: PROBLEMS Problem 1 (Dimensions in mm.) The block-type hand brake shown in the figure has a face…

A: Draw FBD

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Q: The pedal system shown in the figure is exerted by both an up and down mechanism. These forces are…

A: Given: The maximum load, Fmax = 350*89/10 = 3115 N The minimum load, Fmin = - 150*89/10 = - 1335 N…

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Q: Plate (brake band) material yield strength 2 σ yield = 7000daN / cm; rivets diameter d = 2 cm, plate…

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A: GivenCoefficient of friction=0.491Force F=565N

Q: For base case:N= 3500 rpm, D = 8 and 3/8 inch, Q = 400gpm, H = 280 ft,P= 41 hp, Determine new Q. H,…

A: Before manufacturing the large-sized pumps, their models which are in, complete similarity with the…

Q: Problem 6 The figure depicts a band brake whose drum rotates counterclockwise at 200 rev/min. The…

A: To calculate the brake torque, necessary force and steady state power and draw the free body drawing…

Q: b d

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Q: Problem 2 (Dimensions in mm.) The brake shown in the figure has a coefficient of friction of 0.30, a…

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Q: Unlike on a normal bicycle, the rear triangle of the framed is connected by a hinge near the bottom…

A: Given:To find:Draw the free body diagram of the bicycle and the rear triangle.

Clutches, Brakes, Couplings, and Flywheels

The clutch is described as a machine element used to connect or disconnect two shafts together to transmit torque or power. The clutch works on the principles of friction. The clutch is commonly used in automobiles to transfer power from the driving shaft to the driven shaft.