- #1

- 4

- 0

- TL;DR Summary
- analytical mathematical modelling of the torque caused by the laundry and water in a washing machine drum

Hello my dear physicists,

I'm trying to model the varied generated (needed)Torque to rotate a washing machine Drum during a Washing Process

so i assumed that the Model has as Input the target vilocity and as an Output the new needed torque to rotate the Drum(to be as a input for the motor model), depending on what is happening inside the drum.

The main final Goal is to simulate the consumed Power by the motor

My questions are :

1)If anyone can help me about this Topic with recommended Documents, ideas ..etc i will be very thankfull

2)inside the Drum there is Water, causing a Torque, I think depending on the water density and the friction with the inner wall of the Drum. so how can I calculte the Torque caused by the Water ?

3)during the Washing process, the Target Speed is relative low (about 45rpm) which makes the clothing lifted up to certain angle and then falling down. I could calculate the limit angle of lifting and the"flight"time and the landing angle of the clothing assuming that the clothing is a one point mass , how can I generalize this equations on a continium of Mass of clothing occupying a certain Volume of the Drum depending on its density and friction properties ? how can i calculate the Torque caused by this Motion ? (I'm not asking for an exact solution, but any idea or notice what could help)

3)during spinning process the clothing still attached on the inner wall of the drum but with random distribution causing an unbalanced Load and a uniformily distributed Load, so how can I determine the Torque in this case ?

Attached is a picture explaining a little bit

I'm trying to model the varied generated (needed)Torque to rotate a washing machine Drum during a Washing Process

so i assumed that the Model has as Input the target vilocity and as an Output the new needed torque to rotate the Drum(to be as a input for the motor model), depending on what is happening inside the drum.

The main final Goal is to simulate the consumed Power by the motor

My questions are :

1)If anyone can help me about this Topic with recommended Documents, ideas ..etc i will be very thankfull

2)inside the Drum there is Water, causing a Torque, I think depending on the water density and the friction with the inner wall of the Drum. so how can I calculte the Torque caused by the Water ?

3)during the Washing process, the Target Speed is relative low (about 45rpm) which makes the clothing lifted up to certain angle and then falling down. I could calculate the limit angle of lifting and the"flight"time and the landing angle of the clothing assuming that the clothing is a one point mass , how can I generalize this equations on a continium of Mass of clothing occupying a certain Volume of the Drum depending on its density and friction properties ? how can i calculate the Torque caused by this Motion ? (I'm not asking for an exact solution, but any idea or notice what could help)

3)during spinning process the clothing still attached on the inner wall of the drum but with random distribution causing an unbalanced Load and a uniformily distributed Load, so how can I determine the Torque in this case ?

Attached is a picture explaining a little bit