A multi-plate clutch must transmit 11 kW of power without slipping at 1500 rev/min. The coefficient of friction is 0.3. The inner and outer radis are 30 and 85 mm respectively. The axial force applied to the plates is 780 N. Determine the number of plates required

A multi-plate clutch must transmit 11 kW of power without slipping at 1500 rev/min. The coefficient of friction is 0.3. The inner and outer radis are 30 and 85 mm respectively. The axial force applied to the plates is 780 N. Determine the number of plates required

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter7: Dry Friction

Section: Chapter Questions

Problem 7.76P: The clutch described in Prob. 7.75 is to transmit a torque of 120lbft when the total spring force...

See similar textbooks

Related questions

Q: How different the results would be if the linear ram acceleration is 5378 in/s² horizontal…

Q: Consider the following mechanical system, z and y are displacements and the input force to the…

A: Given: To find: State space model

Q: 5 Water is pumped from a lake to a storage tank 18 m above at a rate of 70 L/s while consuming 20.4…

Q: A rectangular furnace of 5 m by 5 m by 8 m inside dimensions is constructed of an insulative…

A: Note: As per the policy, we can solve the first three subparts. Please resubmit the remaining part.…

Q: Plot the shear and moment diagrams for the beam loaded with both distributed and point loads.What is…

Q: Question 2 A crane hook has a trapezoidal section at A-A as shown in Figure 2. Find the maximum…

A: Given

Q: Determine the forces in members BC, BE, and BF. The triangles are isosceles. The forces are positive…

A: Given

Q: An R-12 refrigeration system using a single compressor serves three evaporators of 50, 30 and 20…

Q: Determine the force in each member of the loaded truss. The forces are positive if in tension,…

A: Given:The force acting on the truss is given by:P=3140 N

Q: Problem 4 A 30 ft diameter wind turbine rated at 25 kW power is being considered for a location…

A: As per norms, only three sub-parts are answered. The rated power of the turbine is Pr=25 kW. The…

Q: Water at 68°F flows uphill (B to A) in a 4 inch inside diameter cast iron pipe at a rate of 1.5…

Q: HW-NO 5-morning studies Q1-Calculate the thermal efficiency and equivalent evaporation of a boiler…

A: To found: The thermal efficiency and equivalent evaporation of the boiler. Given: The pressure of…

Q: 9 Water is pumped from a lake to a storage tank 18 m above at a rate of 70 L/s while consuming 20.4…

A: Given : head of water supply h = 18m flow rate of water Q = 70 L/s (since 1 Litre = 10-3 m³) ∴ Q =…

Q: = An ideal Diesel engine operates from P₁ 14 psia, t₁ = 140°F, V₁ = 1 cu. ft. with r = 13.5. Make…

Q: In GC with FID, three different parts of the machine have to have temperature control. Identify…

A: Given question: In GC with FID, three different parts of the machine have to have temperature…

Q: Determine the forces in members CG and GH of the symmetrically loaded truss. The forces are positive…

A: The freebody diagram of the body is shown below

Q: horwalizing 1) Machinability of low carbon steels improved by: high carbon steel improved by…

A: Heat treatment processes are used to get the desired properties in the metals.

Q: Copied or wrong solution get multiple downvote for sure. 1)A cylinder with a 0.3 m inner diameter…

Q: The paint stirrer shown in the figure is made from a rod of length 76 and mass p per unit length.…

Q: The specific gravity of the manometer fluid shown in the diagram is 1.07. Determine the volume…

Q: 23. Consider that 1 lb of air has a decrease of internal energy of 20.58 Btu while its Fahrenheit…

A: Given:mass of the air, m=1 lbdecrease of internal energy, ∆u=-20.58 BTUfinal temperature, T2=T13

Q: Liquid ammonia at -20°C (rho= 665.1 kg/m³ and μ = 2.361*10-4 kg/m*s) is flowing through a 35 m long…

A: Given:Density of ammonia, ρ=665.1 kg/m3Dynamic viscosity, μ=2.361*10-4 kg/m.sLength of the tube,…

Q: f the following, the SHORTEST is ________. a. 1.5-mile b. 1610 m c. 6335 inches d. 17600 yards

A: Given:To determine the shortest among the given options.

Q: Find the length in feet 0f 9/16 inch diameter rope required to fill a drum having the following…

Q: A pipe handles a flow rate of 0.002 m³/s. Find the minimum inside diameter that will provide an…

Q: Problem 5. All following sections have the same cross-section area. Which section has the highest…

Q: Cages used for supporting bearings in an aero engine have been tested under simulated operating…

A: L10 = 2730 hours. (The maximum hours) For 90% reliability Total number of tests = 64 Samples…

Q: 15) "Questions 13 and 14. If the fan moves 85 m3 of air per hour through the basement, this is the…

A: Given: Temperature and Relative humidity To find: Properties of air

Q: The 25-kg cylinder A is free to slide along rod BC. When the cylinder is at x=0, the 46-kg circular…

Q: What formula we need to use? Please quick. 1) Determine the hardening exponent of the metal with 2/3…

A: Hardening Exponent - hardening exponent "n" - A constant that is frequently utilised in computations…

Q: 3. Air enters a compressor at ambient conditions of 15 psia and 77°F with a low velocity and exits…

Q: If pipe 1 has volumetric flowrate of 0.0038 m^3/s, and pipe 2 Q2= 5.8905 L/s, and pipe 3 diameter 90…

Q: Oxygen at the rate of 3 lb/min undergoes a reversible isobaric process during which its entropy…

Q: A. A tensile stress (♂) is applied to a single crystal. The angle between the direction of the…

Q: A laminar boundary layer is described by the following profile: ) - (-/-)²) if u (y) = uo 1.195mm…

Q: A container weighs 3.22 lb force when empty. Filled with water at 60°F the mass of the container and…

Q: Hot water flowing at 0.015 m3/min enters the tube side of a counter current shell & tube heat…

A: Given data: Hot water flowing at m˙w= 0.015 m3/min enters the tube side of a counter current shell…

Q: At section (1) Q₁ = 15 ft²/s P₁= 150 psi Find Fx Neglect Friction 0.5 ft pipe Density (8) = 1.94…

Q: Calculate the pressure drop between point 1 and point 2? Use the usual/normal densities of the…

A: Given:Manometric deflection, x=5 inManometric fluid- mercury

Q: ||-a- -2a- -2a- -2a- O10979.88 x 104 mm4 O 3229.29 × 104 mm4 7076.89 x 104 mm4 O9671.69 x 104 mm4 O…

Q: Plot the Rf/Ri as a function of initial bend radius, Ri in bending for (a) 5052-O aluminum; (b)…

A: Solution: To Find: Plot the Rf/Ri as a function of initial bend radius, Ri in bending for (a) 5052-O…

Q: Plot the relation of springback in terms of RiY/ET of three types of metals or alloys (listing their…

A: Solution: Given Data: Problem 3 To Find; (a) Plot the relation of spring-back in terms of RiY/ET…

Q: A+ Section Section Pump efficiency (np) = 80% Diameter (D)= Golm Calculate the power Pomp for a pump…

A: The diameter of section 1 is d1=0.1 m. The diameter of section 2 is d2=0.065 m. The velocity in…

Q: A flashed-steam geothermal power plant is located where underground hot water is available as…

Q: Determine the normal stress and shear stress acting on the inclined plane AB. Solve using Mohr's…

Q: You choose to examine a bone, muscle, cartilage, tendon, ligament or even a single cell under…

A: Solution: Given Data: y (x) = -K sin (2pix /L) To Find: (a) The buckling angle? (b) Buckling angle…

Q: A hand truck and its load, as shown below, have a mass of 100kg, and their centre of gravity…

Q: A flashed-steam geothermal power plant is located where underground hot water is available as…

A: Write the given data. P1=2610 kPaT1=250 °CP2=557 kPax2=0.98P3=10 kPam˙=40 kg/sηmech=0.90ηgen=0.92

Q: Air is discharged from a large tank through a convergent nozzle of 25 mm diameter. The air in the…

A: To find: The mass flow rate for the respective barometric reading. Given: Diameters, d = 25 mm.…

Q: Q5: Draw the shear and bending-moment diagrams for the beam and loading shown 30 kN/m 30 kN/m

A: Given

Concept explainers

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.

Question

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

Step 2

Step 3

Step 4

Trending now

This is a popular solution!

Step by step

Solved in 4 steps with 4 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Clutches, Brakes, Couplings and Flywheels

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.

Similar questions

The clutch described in Prob. 7.75 is to transmit a torque of 120lbft when the total spring force exerted on the pressure plate is 75 lb. If Ri=4in., calculate the minimum acceptable value for RO. Assume that the clutch is new.
A single-plate clutch has a friction disc with inner and outer radii of 20 mm and 40 mm, respectively. The friction lining in the disc is made in such a way that the coefficient of friction u varies radially as u= 0.01 r. where r is in mm. The clutch needs to transmit a friction torque of 18.85 kN. mm. As per uniform pressure theory, the pressure (in MPa) on the disc is
2. An engine developing 45 kW at 1000 rpm is fitted with a cone clutch built inside the flywheel. The cone has a face angle of 12.5° and a maximum mean diameter of 500 mm. The coefficient of friction is 0.2. The normal pressure on the clutch face is not to exceed 0.1 N/mm2. Determine: a. the face width required, and b. the axial spring force necessary to engage the clutch.
1. A multiple friction clutch is required to transmit 89.52 kW at 3000 rpm. The plates are alternatively of steel and phosphor bronze and they run in oil. The coefficient of friction is 0.08. The internal radius of the friction surface is 0.8 times the radius of the external surface. The axial pressure is limited to 20 x 104 N/m2 . If the maximum diameter of the frictional surface is not to exceed 250 mm, determine the number of plates required.
The disc clutch has a pair of mating friction surfaces, with an outer diameter of 350 mm and an inner diameter of 250 mm. The average value of the coefficient of friction is 0.25, and the operating force is 5 kN. Find the torque capacity when the clutch is new, the maximum pressure and the torque capacity after a sufficiently long operating period.
A multiple disc clutch has three discs on the driving shaft and two on the driven shaft, providing four pairs of contact surfaces. The outer diameter of the contact surfaces is 250 mm and the inner diameter is 150 mm. Determine the maximum axial intensity of pressure between the discs for transmitting 18.75 kW at 500 r.p.m. Assume uniform wear and coefficient of friction as 0.3.
A multiple V-belt drive is required to transmit 4 kW. The smaller pulley of the system is150 mm diameter, rotates at 200 rev/min, and has an angle of lap angle of 135°. Thegrove angle is 40° and the coefficient of friction between the belt and the pulleys is 0·3.If the maximum tension in any one belt is limited to 800 N, calculate:(a) The number of belts required. (b) The minimum tension in any one belt. (c) The required pre-tensioning of the belt. The centre-to-centre distance between the pulleys is 2 m.(d) Determine to the nearest mm, the required size for the larger pulley.(e) Find the approximate length of the belt
2. A square threaded screw of mean diameter 25 mm and pitch of thread 6 mm is utilised to lift a weight of 10 kN by a horizontal force applied at the circumference of the screw. Find the magnitude of the [Ans. 966 N] force if the coefficient of friction between the nut and screw is 0.02. A bolt with a squore threaded screw has mean diameter of 25 mm and a nitch of 23 mm It carries an
A leather-faced cone clutch has a contact surface with a mean diameter of 15 in. and transinits 20 hy turning at 800 rpm. For a cone angle of 20 degrees and a coefficient of friction 0.30, determine the force required to keep the surface in contact. Ans. 121.5 lb.
A multi-plate clutch has four pairs of frictional surfaces, each of internal diameter 120 mm and external diameter 200 mm. If the coefficient of friction is 0.3 and the uniform pressure condition can be assumed, what is the required spring force when the plates transmit 20 kW at 1400 rpm?
Q1/ 4 plate clutch having a single driving plate with contact surfaces on each side is required to transmit 110 kW at 1250 r.p.m. The outer diameter of the contact surfaces is to be 300 mm. The coefficient of friction is 0.4. (a) Assuming a uniform pressure of 0.17 N/mm? ; determine the inner diameter of the friction surfaces. (b) Assuming the same dimensions and the same total axial thrust, determine the maximum torque that can be transmitted and the maximum intensity of pressure when uniform wear conditions have been reach.
Determine the percentage increase in power capacity made possible in changing over from flat belt drive to V-belt drive. The diameter of pulley is same as the pitch diameter of grooved pulley. The pulley rotates at the same speed as the grooved pulley. The coefficient friction for the grooved and flat belt is same and is 0.3. The V-belt pulley groove angle is 60°. The belts are of the same material and have same cross-sectional area. In each case, The angle of warp is 150°.