Determine the time required to accelerate a counter shaft of rotating mass 500 kg and radius of gyration 200 mm to the full speed of 250 rpm from rest through a single clutch. The internal and external radii are 125 mm and 200 mm. Take friction coefficient as 0.3 and the spring force as 600 N. Assume that only one side of clutch is effective.

Determine the time required to accelerate a counter shaft of rotating mass 500 kg and radius of gyration 200 mm to the full speed of 250 rpm from rest through a single clutch. The internal and external radii are 125 mm and 200 mm. Take friction coefficient as 0.3 and the spring force as 600 N. Assume that only one side of clutch is effective.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

A motorcycle and rider have a combined mass of 350kg. The each wheel has a mass of 20kg with the diameter of 500 mm. The rider accelerates from 5m/s to 25m/s over a distance of 100m, whilst climbing a hill of slope 1 in 20. Identify the magnitude and effect of gyroscopic reaction torque by calculating the angular velocity and power as the motorcycle ascends the incline when the motorcycle and rider travel at 80 km/h around a left-hand bend of road with the radius 30 m.Explain the effects of energy transfer in mechanical systems (e.g. gears, pulley or flywheel) with uniform acceleration present.
A 256-lb block is released from rest when the spring is unstretched. The drum has a weight of 76 lb and a radius of gyration of kO = 0.9 ft about its center of mass O. The coefficient of stiffness of the spring is k=78 lb/ft. The radius of the drum are: rin=0.485ft and rout=0.82ft. Find the velocity of the block after it has descended d=4 feet.
A min cage of mass 4t is to be raised with an acceleration of 1.5m/s2 by a cable passing over a hoist drum of 1.5m diameter. What is the power required when the load has reached a velocity of 6m/s, neglecting the inertia of the drum and weight of the cable, but allowing for bearing friction torque of 3kN at the drum? What is the power required at a uniform velocity of 6m/s
A flywheel of mass 950 kg rotates at a speed of 725 rev/min and has a radius of gyration of 135 mm. The flywheel is engaged by means of a clutch to a stationary shaft which has a mass of 1000 kg and a radius of gyration of 90 mm. Calculate the speed of the flywheel/clutch assembly after engagement.
A flywheel of mass 125kg and radius of gyration 150mm is accelerated from rest to a speed of 1180rpm whilst making 500 revolutions. The motion is resisted by a friction torque of 2.5Nm. Determine the work done and the maximum power developed by the driving motor.
The gear train shown operates in a horizontal plane and is used to transmit motion to the rack D of mass mD = 4.9 kg. If an input torque M = 63 N●m is applied to gear A, what will be the magnitude of the resulting acceleration a of the unloaded rack? (The mechanism which it normally drives has been disengaged.) Gear C is keyed to the same shaft as gear B. Gears A, B, and C have pitch diameters dA = 185 mm, dB = 355 mm, and dC = 185 mm, and centroidal mass moments of inertia IA = 0.45 kg●m2, IB = 3.38 kg●m2, and IC = 0.45 kg●m2, respectively. All friction is negligible.
A spool of mass 60 kg is supported on two rollers at A and B as shown in FigureQ1(c). Neglect the mass of the inelastic cable, friction and the mass of therollers at A and B. Knowing that a constant pulling force P is applied in order tounwind 6 m of cable in 3 s starting from rest. The radius of gyration for the spoolis (604) mm, Appendix Ashows the examples of identifying the radius of gyration using student ID.(i) Determine the angular acceleration of the spool. (ii) Determine the pulling force P. (iii) Explain with calculation on ways to increase the acceleration of cablebeing pulled. [
In a spring controlled governor, mass of each ball of governor is 7 kg and moves radially under the action controlling force E. If the speed range is 420 rpm and 44 rpm with a range of ball path radius r equal to 12.4 cm to 13.2 cm. determine the linear relationship between ball path rudius and controlling force sketch te Grati between F and r. What in the equilibrium speed at r= 12.8 cm?
A drum A, of mass 200 kg, external diameter 380 mm and radius of gyration 150 mm, rotates on frictionless bearings at 250 rev/min. A stationary drum, B, of mass 50 kg, external diameter 200 mm and radius of gyration 80 mm, mounted on a frictionless axis parallel to that of A, is pressed into contact with A with a force of 90 N. The coefficient of friction is 0·25. Determine: The final speeds of A and B. (b) The time of slipping. (c) The time of slipping if a torque is applied to A, to maintain the speed of A as a constant 250 rev/min.
A uniform, 0.0300 kg rod of length 0.400 m rotates in ahorizontal plane about a fixed axis through its center and perpendicularto the rod. Two small rings, each with mass 0.0200 kg, are mounted sothat they can slide without friction along the rod. They are initially heldby catches at positions 0.0500 m on each side of the center of the rod,and the system is rotating at 48.0 rev/min. With no other changes in thesystem, the catches are released, and the rings slide outward along therod and fly off at the ends. What is the angular speed (a) of the systemat the instant when the rings reach the ends of the rod; (b) of the rodafter the rings leave it?
The uniform cylinder has a mass of 30.0kg and is rotating about a horizontal axis through O at 1200 rpm. The coefficient of kinetic friction between the cylinders and braking levers is 0.200. If the spring tension is 100 N, calculate the time required for the cylinder to stop spinning.
Ruler of the "Porter" model, with the upper and lower arms of 178 mm each, fixed by a hinge 38 mm away from the center of rotation. The rotating balls have a mass of 1.15 kg each, and the axial weight affecting the bushing is 20 kg. The ruling commotion began =154. Elevation at 280rpm - The joints are at an angle of 30 to the vertical. Assuming that the force of friction is constant, find the minimum and maximum rotational speed when mg The angle of inclination of the arms to the vertical is 45