An electric motor drives a punching press machine running with 500 rpm mean speed. The press machine is capable of punching 5538 holes per hour for one cycle operation. The total mass moment of inertia of rotating parts of the motor and machine is 1.52 kgm². The turning moment diagram required by the press machine is as shown in Figure Q3. Calculate the following. i. ii. iii. The mass moment of inertia of flywheel disc, if the coefficient of fluctuation of speed is 0.05 The cross-sectional thickness of the rim (t) and radius of the rim (), if radius to thickness ratio is 4. The flywheel disc is to be made of Cast Iron with density of 8200 kg/m³. If the speed range of the motor is between 495 rpm and 505 rpm, identify the mass moment of inertia of the flywheel disc which has to be added or removed from the system. 25 T (Nm) 120 60 -15 0.2 0.1 0.2 0.2 0.1 t (sec)

An electric motor drives a punching press machine running with 500 rpm mean speed. The press machine is capable of punching 5538 holes per hour for one cycle operation. The total mass moment of inertia of rotating parts of the motor and machine is 1.52 kgm². The turning moment diagram required by the press machine is as shown in Figure Q3. Calculate the following. i. ii. iii. The mass moment of inertia of flywheel disc, if the coefficient of fluctuation of speed is 0.05 The cross-sectional thickness of the rim (t) and radius of the rim (), if radius to thickness ratio is 4. The flywheel disc is to be made of Cast Iron with density of 8200 kg/m³. If the speed range of the motor is between 495 rpm and 505 rpm, identify the mass moment of inertia of the flywheel disc which has to be added or removed from the system. 25 T (Nm) 120 60 -15 0.2 0.1 0.2 0.2 0.1 t (sec)

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

Rotattional Inertia of a two-particle system a-) What is the rotational inertia ( lcom) about an axis throgh the center of mass perpendicular to the rod as shown in figure (a)? b-) What is the rotational inertia of the body about an axis through the left end of the rod and parallel to the first axis as shown in figure (b)?
A car is moving on a curved horizontal road of radius 100 m with a speed of 20 m/s. The rotating masses of the engine have an angular speed of 100 rad/s in clockwise direction when viewed from the front of the car The combined moment of inertia of the rotating masses is 10 kg-m².what is the magnitude of the gyroscopic moment in (N-m)?
Answer all parts please Crate A has a mass, mA-5 kg and attached to a rolling ball with a mass of my- 2.5 kg with radius of gyration, ko of 0.2 m as shown in Figure 4. Assume that the pulley is frietionless and massless. (Given 0-30") (a) Compute the moment of inertia of the ball. (b) Draw the free-body diagram of the crate and the ball. (c) If the crate is released from rest, determine the tension and acceleration of the crate and the ball. (d) Calculate the final velocity of the crate if it has descended 0.5 m.
The moment of inertia of a planet revolving around a star is treated like a point mass. Using the parallel-axis theorem show that this is a reasonable technique.
Suppose a 30 lb truck wheel 18 in. in diameter has a radius of gyration of 4 in. and the 6120 lb truck’s weight is distributed equally to each of the four wheels.a. If the truck can supply 150 lb x ft of torque to each wheel, how fast would the wheel want to accelerate if it didn’t slip? b. What would the coefficient of friction have to be in order to keep the wheel from slipping
A wheel with rotational inertia 48 kg.m2 is mounted on a fixed, frictionless axle. The angular speed of the wheel is increased from zero to 59 rad/s in 12-s. What is the average net torque/Moment in N.m on the wheel during this time interval?
For the the mass of flywheel of an engine is 6.5 tonnes and the radius of gyration is 1.5 meters,then the moment of inertia will be _________in kg-m2
A uniform circular disk 3ft in diameter weighs 960lb. what is its moment of inertia abouti ts usual axis?
A weight of 500 kg is being lifted up at a uniform speed of 1.5 m/s by a winch driven by a motor running at a speed of 1000 rpm. The moments of inertia of the motor and winch are 0.3 and 0.3 kg-m respectively. In the absence of the weight, the motor develops a torque of 100 Nm at a speed of 1000 r/min. Calculate the motor torque and the equivalent moment of inertia referred to the motor shaft
A flywheel is accelerated at a rate of 4 rad/s" by a torque of 10 N-m. Calculate moment of Inertia in kg-m²
Find βW for the torque- angle diagram shown. The enclosed areas are , A1 = 400 J , A2 = 800 J , A3 = 550 J and A4 = 150 J Find the moment of inertia for a flywheel which will keep the speed within the range 410 to 416 rev/min. and find the mass of a suitable flywheel with a radius of gyration of 0.5 m.
A wheel with rotational inertia 45 kg.m2 is mounted on a fixed, frictionless axle. The angular speed of the wheel is increased from zero to 44 rad/s in 13-s. What is the AVERAGE power input to the wheel during this time interval?