Three bodies are fixed on a shaft rotating at 500 rpm. The mass of the bodies are 3.5 kg, 2.5 kg and 2 kg. The radii of rotation can be taken as 60 cm, 40 cm and 25 cm. If a balancing body of 1.5 kg is to be placed, then find the unbalance in the system. The first body can be assumed to be at 45° from positive x axis, second body is at 90° from first body and third body is at 180° from positive x-axis. All the angles are measured in anti-clockwise direction.

Three bodies are fixed on a shaft rotating at 500 rpm. The mass of the bodies are 3.5 kg, 2.5 kg and 2 kg. The radii of rotation can be taken as 60 cm, 40 cm and 25 cm. If a balancing body of 1.5 kg is to be placed, then find the unbalance in the system. The first body can be assumed to be at 45° from positive x axis, second body is at 90° from first body and third body is at 180° from positive x-axis. All the angles are measured in anti-clockwise direction.

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

1-) Balancing masses from the axis of rotation to the distance of ei and Li mm in the rotor R and L balancing planes seen in the figurewant to balance by putting, Find the balancing masses and angular positions to be used in balancing. Tableuse the given values. Find L and R support reactions.
A beam rests on a fulcrum, 1.2 m from one end. A weight of 350 kg is suspended from this end causing the beam to balance. If the weight of 350 kg is suspended on the opposite end of the beam, it is necessary to suspend a 1000 kg weight on the first end in order to effect an even balance. Find the lenght of the beam
A student sits on a freely rotating stool holding two dumbbells, each of mass 2.97 kg (see figure below). When his arms are extended horizontally (Figure a), the dumbbells are 1.09 m from the axis of rotation and the student rotates with an angular speed of 0.749 rad/s. The moment of inertia of the student plus stool is 2.57 kg. m² and is assumed to be constant. The student pulls the dumbbells inward horizontally to a position 0.305 m from the rotation axis (Figure b). Wf Wi a 30€ 30€ = b (a) Find the new angular speed of the student. rad/s (b) Find the kinetic energy of the rotating system before and after he pulls the dumbbells inward. K before J J after
SECW OM A motorbike wheel with an 8 kg mass has a 0.4 m radius of gyration around the z-axis, as shown in Figure. The wheel's shaft is supported by bearings A and B and rotates at a constant rate of 150 rpm in a counter-clockwise direction from the z-axis, while the frame rotates at 12 rpm in a counter- clockwise direction from the y-axis. Determine the resultant reaction forces at each bearing A and B due to the mass and gyroscopic effects. With the result of forces, which bearing has a tendency to fail first, which bearing should be considered for design purposes and explain the effect on motor if the bearing fail. y 0.55 0.4 All dimensions in meter (m)
For masses and are 200 kg, 300 kg, 240 kg, and 260kg respectively. The corresponding radii of rotation are 0.2m, 0.15m, 0.25m and 0.3 m respectively and the angles between successive masses are 45 , 75 and 135 . Find the position and magnitude of the balance mass required, if it’s radius of rotation is 1.4 m.
i need help with this question please
Don't Use Chat GPT Will Upvote And Give Handwritten Solution Please
Two forces act on a massless block. If the force FA is known, what must the magnitude of F3 be in order to keep the block from rotating about point P. B A. FB = 3/5 FA B. FB = 3/4 FA C. FB = FA D. FB = 4/3 FA E. FB = 5/3 FA F P 4 m FB 3 m
2. If the mass of body A and B are equal but k = 2ks, then a. IA = 2IB b. C. IA = d. IA = IA = ¹2IB 4IB ¹14IB
A 40-kg disk shown is pin supported at its center. It starts from the rest and rotates to attain an angular velocity of 2 rad/s. The disk is acted upon by a constant couple moment M = 10 N.m clockwise. The spring is originally unstretched and its cord wraps around the rim of the disk. 0.2m ww Ol = a) (10 points) Find the kinetic energy of the disk. b) (30 points) Determine the angle through which the disk rotates
A professor's office door is 0.99 m wide, 2.2 m high, 4.2 cm thick; has a mass of 27 kg, and pivots on frictionless hinges. A "door closer" is attached to door and the top of the door frame. When the door is open and at rest, the door closer exerts a torque of 5.6 N*m. What is the moment of inertia of the door? If you let go of the open door, what is its angular acceleration immediately afterward?