I have to calculate the vibration velocity of an industrial wringer support.
Machine rotation frequency: 1000 rpm (f)
Radius of rotation of the unbalance: approx. 0.6 m (R)
Max. mass of unbalance taken into account: 6 kgs (M)
Therefore the centrifugal force to be taken into account F = 4ft ()^2 M R f^2 = 4 tons
This centrifugal force rotates at frequency f (16.7 Hz) in the horizontal plane at the centre of gravity of the machine
The vibration velocity criterion to be justified at the level of the spinner installation will be of the order of a few tens of mm/sec
I'm looking for a way to model centrifugal force (rotating dynamic force) - what type of analysis and parameterization?The desired result at the output of the analysis is either vibration displacement amplitude or vibration velocity?thank you very much
You would need to carry out a time history analysis and apply the dynamic load as a harmonic function. The time history of the displacements and velocity will be available in the postprocessing mode. For more details on the parameters used in Time History analysis, please refer to section 5.31.4 of the technical reference manual titled Definition of Time History Load. Also please check out the application example 22.
Thank you Sye for your response,
I see the section 5.31.4 and example 22, but I don't dispose of a spectrum mesurement data. So is it possible to use the datas here above.
Define a sine function with 4 ton as the amplitude, 16.7 Hz as the frequency and phase =0