Answered: As shown in the figure, 2 lumped masses…

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

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As shown in the figure, 2 lumped masses that are not in the same plane are connected to a shaft between the bearings at A and B. The spindle is rotated counterclockwise with a constant speed of 1450 rpm. Perform the dynamic balancing of this prototype rotor system.

-Required corrective masses in the L and R planes from the C axis of rotation
It will be placed at a distance of 50 mm.

-The values of the required corrective masses will be found in grams.

-The angle positions of the necessary corrective blocks will be written in polar style at the last stage.

-For the solution, the "Algebraic Solution" method based on Cartesian components will be used.

mex-Tablosu
e m-gram e-mm
me-gram mm
X-mm
gram mm mm
0 gram mm mm
mex
mex
R
me-Tablosu
m-gram c-mm
me-gram mm
gram mm
me
1
2
L.
R

m, = 2kg, m, = 4kg, e = 0.80 mm, e, =1.20 mm Cos (A+B)=Cos(A)Cos (B) – Sin (A) Sin (B)
Sin (A+ B)= Sin (A)Cos (B)+ Cos (A) Sin (B)
%3!
#2/7
Oma
35
|R
2, k
B|
|A
25°
Om
mi
70
45
75 105 mm
| 60

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