Investigating Vibration Reduction in Sheet Metal Using Electromagnetic Damping

gavs612
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hello. can u help me with this planing execise

manufacturers of sheet metal use rollers to produce the sheets. The sheets then pass along processing lines for painting. Transverse vibrations of these sheets results in a non uniform thickness of paint layers on the sheets.

Electronmagnetic damping can be used to reduce these vibrations, The vibrating sheets pass near to a powerful electromagnet. Induced currents in the sheets lead to forces opposing the vibration of the sheet

Design an experiment usng a SENSOR, DATALOGGING EQUIPMENT to investigate how the time taken for the amplitude of a vibrating sheets of aluminium to halves varies with the magnetic flux density of the field in which the sheet is placed
Detail on :

a.) how the magnetic field would be produced, measured and vaired
b.) how the magnetic field would be orientated wioth respect to the vibrating sheet
c.) how the ampltude of the vibration of the sheet would be measured
d.) the procedure to be followed in the investigation
e.) any features to ensure accuracy.

Thanks, any help is much appreciated.
 
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Time taken for the amplitude of a vibrating sheet of Al varies with magnetic field.

gavs612 said:
hello. can u help me with this planing execise

manufacturers of sheet metal use rollers to produce the sheets. The sheets then pass along processing lines for painting. Transverse vibrations of these sheets results in a non uniform thickness of paint layers on the sheets.

Electronmagnetic damping can be used to reduce these vibrations, The vibrating sheets pass near to a powerful electromagnet. Induced currents in the sheets lead to forces opposing the vibration of the sheet

Design an experiment usng a SENSOR, DATALOGGING EQUIPMENT to investigate how the time taken for the amplitude of a vibrating sheets of aluminium to halves varies with the magnetic flux density of the field in which the sheet is placed
Detail on :

a.) how the magnetic field would be produced, measured and vaired
b.) how the magnetic field would be orientated wioth respect to the vibrating sheet
c.) how the ampltude of the vibration of the sheet would be measured
d.) the procedure to be followed in the investigation
e.) any features to ensure accuracy.

Thanks, any help is much appreciated.
 
To solve this, I first used the units to work out that a= m* a/m, i.e. t=z/λ. This would allow you to determine the time duration within an interval section by section and then add this to the previous ones to obtain the age of the respective layer. However, this would require a constant thickness per year for each interval. However, since this is most likely not the case, my next consideration was that the age must be the integral of a 1/λ(z) function, which I cannot model.
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