Lecture 3.2.1 Balancing of rotating mass | Problem 1
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- Опубликовано: 22 ноя 2024
- In this video, i will discuss about balancing of rotating mass revolving around different plane.
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9. A rotating shaft carries four discs C, D, E and F tightly bolted to it. The centres of mass are 34 mm, 41 mm, 54 mm and 62 mm respectively from the axis of rotation. The masses C, d and F are 7.1 kg, 5 kg and 4.5 kg; the axial distance C and D is 320 mm and that between C and E is 400 mm. Masses C and D are at 1500 to each other. For complete balance, determine:
i. The axial distance between the planes of revolution of E and F,
ii. The angles between masses C, D and F,
iii. The mass E,
iv. The angle between E and C.
Three rotating masses A = 14kg, B = 11kg and C = 21kg are carried on a shaft, with centres
of mass 275 mm, 400 mm and 150 mm respectively from the shaft axis. The angular positions of
B and C are 600 and 1350 respectively from A, measured in the same direction. The distance
between the planes of rotation of A and B is 1.35 m, and between those of A and C is 3.6 m, B
and C being on the same side of A.
Two balance masses are to be fitted, each with it centre of mass 225 mm from the shaft axis, in
planes midway between those of A and B and of B and C. Determine the magnitude and angular
position with respect to A of each balance mass using the analytical method only.
Three masses of 8 kg , 12 kg , and 15 kg attached at radial distances of 80 mm , 100 mm, and 60 mm respectively to a disc on a shaft are in complete balance . Determine the angular position of the masses of 12 kg and 15 kg relative to the 8 kg mass.
A rotating shaft carries four unbalanced masses mi, m2, m3 & ma of magnitudes 20 kg. 15 kg, 17 kg, & 14 kg revolving at radii 60 mm, 80 mm, 100 mm & 60 mm respectively. The masses m2, m; & m. revolve in planes 100 mm, 180 mm & 300 mm respectively from the plane of mass m & are angularly located at 65°, 145° & 270° respectively, measured in anticlockwise direction, from the mass m looking from the mass end of shaft. The shaft is to be dynamically balanced by two masses, both located at 70 mm radii & revolving in plane midway between those of masses m, & m & midway between those of masses m3 & m.. Determine the magnitudes of the balancing masses & their respective angular position.
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Four masses A, B, C and D revolve at equal radii and are
equally spaced along a shaft. The mass B is 7 kg and the radii of C
and D make the angles of 900
and 2400
respectively with the radius
of B. Find the magnitude of the masses A, C and D and the angular
position of A so that the system may be completely balanced
Soooo good 💯
Amazing explaination more plz
Dear Sir
Good Day
14.2 (minutes)... When we draw the couple polygon don't we care about the angles?
Thanks.
Dear Sir please tell.
14.2 (minutes)...... When we draw the couple polygon , don't we care about the angles?
The following data apply to an outside cylinder unbalanced locomotive:
Mass of rotating parts per cylinder per cylinder = 360 kg.
Mass of reciprocating parts per cylinder = 300 kg.
Angle between cranks = 900
Crank radius = 300 mm
Cylinder centers = 1.75 m
Radius of balance masses = 750 mm
Wheel centers = 1.45 m
If the whole of rotating and 2/3 of the reciprocating parts are to be
balanced in planes of driving wheels. Find:
(i) Magnitude and angular position of balance masses.
(ii) Speed in kilometers per hour at which the wheel will lift off the rails
when the load on each driving wheel is 50 KN and the diameter of tread
lots of love sir g
It is very useful in my exam
How did you find 0.1mx=35.5kgm
Tq.... excellence
How do you get 7.3 kgm^2 again?
Yemum 😂😇
could please solve this problem
How to take a scale ?
sppu 😂
Yeah
Can you please solve this sir..
Thank you