/sci/ - Science & Math » Thread #12951245

43KiB, 850x609, Transmissibility-of-the-active-vibration-isolation-system-under-AVF-control-when-the-mass.png

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Anonymous Fri 09 Apr 18:46:56 2021 No.12951245 View Reply Original Report

Quoted By: >>12951449 >>12951593 >>12951707

What causes secondary resonance(s)?

Anonymous

View Same Google iqdb SauceNAO 1496544773003.jpg, 39KiB, 460x451

Anonymous Fri 09 Apr 2021 19:48:16 No.12951437 Report

Quoted By: >>12951577

secondary shame

Anonymous

View Same Google iqdb SauceNAO dfg.png, 746KiB, 538x710

Anonymous Fri 09 Apr 2021 19:56:06 No.12951449 Report

Quoted By: >>12951577

>>12951245
Your mother's ass.

Anonymous

Anonymous Fri 09 Apr 2021 20:28:41 No.12951577 Report

Quoted By:

>>12951437
>>12951449
fags

Anonymous

Anonymous Fri 09 Apr 2021 20:32:09 No.12951593 Report

Quoted By: >>12951604

>>12951245
Nonlinearity in the system leads to sub harmonic and or superharmonic resonances, which are usually much smaller than primary resonance, as shown in your picture.

Anonymous

Anonymous Fri 09 Apr 2021 20:34:36 No.12951604 Report

Quoted By: >>12951611

>>12951593
Any sources for further reading (and citation)?

Anonymous

Anonymous Fri 09 Apr 2021 20:36:33 No.12951611 Report

Quoted By: >>12952106

>>12951604
Sure, grab a copy of Nonlinear Oscillators by Nayfeh, for a shitty brief see

https://en.m.wikipedia.org/wiki/Nonlinear_resonance

Anonymous

Anonymous Fri 09 Apr 2021 20:58:17 No.12951707 Report

Quoted By: >>12952106

>>12951245
for linear systems only multiple DOFs. but nonlinearities can lead to multiple resonances in 1-DOFs systems

Anonymous

Anonymous Fri 09 Apr 2021 22:20:41 No.12952106 Report

Quoted By: >>12952152

>>12951707
>>12951611
The system I am dealing with is a simple 1 degree of freedom system subjected to forced vibration. Should have probably specified that before hand.

Anonymous

Anonymous Fri 09 Apr 2021 22:29:53 No.12952152 Report

Quoted By: >>12952174

>>12952106
what kind of system? do you solve do numerics or experiments?

Anonymous

Anonymous Fri 09 Apr 2021 22:38:27 No.12952174 Report

Quoted By:

>>12952152
It's a lab experiment. Mass connected to a shaker, accelerometer, etc, etc.
Taking readings and then plotting excitation freq against transmissibility.
Comparing with theoretical curve.

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