can you solve this please, this is not graded, simply an example Consider a brake testing bench as shown in the figure.MotorA motor speeds up the system through the use of a clutch. Electric control is used to maintain motor speed(constant motor speed). The clutch is actuated from the motor side by a force P equal to 5000 N. A flywheelweighing 60 kg is used to provide inertia to the system. The motor speed is 950 RPM.25The next figure shows a proposed shaft onto which the brake side clutch plate, flywheel, and brake disc willbe placed. The shaft will be machined from AISI 1050 CD steel, Sut= 690 MPa; Sy = 580 MPa.16.15020FlywheelClutchBrake (Callipers)+X25025.420050Brake (Disc)20The brake remains disengaged.Neglect the weight of the shafts, clutch, and brake disc.Neglect friction effects at the bearings.Units in [mm]BearingEnd milled keyway forflywheel placementFor the proposed shaft determine the fatigue factor of safety for infinite life using the modified Goodmancriteria only at point 1 (the end-milled keyseat where the flywheel will be placed). Do this for two scenarios:a) While the clutch is engaged, and slippage occurs.b) While the clutch is engaged, and no slippage occurs (the brake side is rotating at the same speed asthe motor side).Assume the following:Keyseats are end milled. Use first iteration estimates for stress concentrations.The theoretical stress-concentration factor for axial loading at the keyseat is K₂ = 3.0.A reliability of 99% is required.See clutch properties and relevant tables on next page. An axial flat disc clutch with the following properties is used:Bending or axial:Va=0.246-3.08 (10³) Su+1.51 (105) S-2.67 (108) s 50 Sut ≤ 250 kpsiVa=1.24-2.25 (10³) St+1.60 (106)S-4.11 (10-10)5 340 ≤ Sut ≤1700 MPaTorsion:Va=0.190-2.51 (10³)S +1.35 (105)S-2.67 (108)sVa=0.958-1.83 (10³) Sur +1.43 (106) S-4.11 (10-10)Table 6-2Inner diameter = 50 mmOuter diameter = 100 mmCoefficient of friction = 0.4Friction contact surfaces or pairs = 1Uniform wear is consideredSurface FinishGroundCurve Fit Parameters for Surface Factor, Equation(6-18)Machined or cold-drawnHot-rolledAs-forgedFactor aSut, kpsi Sut, MPa1.381.212.0011.012.73.0438.650 Sur 220 kpsi340 ≤Sat ≤ 1500 MPa54.9Exponent b-0.067-0.217-0.650-0.758(6-35)(6-36)

Answered: Image /qna-images/answer/aaa00a13-cbac-42f3-baf2-f39f8948416e.jpg

Consider a brake testing bench as shown in the figure. Motor 16.1 50 20 Clutch + X A motor speeds up the system through the use of a clutch. Electric control is used to maintain motor speed (constant motor speed). The clutch is actuated from the motor side by a force P equal to 5000 N. A flywheel weighing 60 kg is used to provide inertia to the system. The motor speed is 950 RPM. 250 The next figure shows a proposed shaft onto which the brake side clutch plate, flywheel, and brake disc will be placed. The shaft will be machined from AISI 1050 CD steel, Sut= 690 MPa; Sy=580 MPa. 1251 25.4 Flywheel 200 Brake (Callipers) 50 X 20 Brake (Disc) Units in [mm] Bearing End milled keyway for flywheel placement For the proposed shaft determine the fatigue factor of safety for infinite life using the modified Goodman criteria only at point 1 (the end-milled keyseat where the flywheel will be placed). Do this for two scenarie a) While the clutch is engaged, and slippage occurs. b) While the clutch is engaged, and no slippage occurs (the brake side is rotating at the same speec the motor side). Assume the following: • The brake remains disengaged. Neglect the weight of the shafts, clutch, and brake disc. Neglect friction effects at the bearings. Keyseats are end milled. Use first iteration estimates for stress concentrations. The theoretical stress-concentration factor for axial loading at the keyseat is K₂ = 3.0. A reliability of 99% is required. See clutch properties and relevant tables on next page.

6th Edition

ISBN:9781133612315

Author:Jack Erjavec, Rob Thompson

Publisher:Jack Erjavec, Rob Thompson

Chapter44: Four- And All-wheel Drive

Section: Chapter Questions

Problem 4RQ: Briefly explain how a Haldex clutch works.