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How to measure force in dynamic Time and frequency analysis?

hrao-2
2-Explorer

How to measure force in dynamic Time and frequency analysis?

I want to measure support force in constrain surface, it's easy to get it in static analysis, but how to get it in dynamic analysis like shock simulaiton?

I checked below diagram but didn't found there is no force available , could anyone do me a favor, thanks.

mst2477g.gif

ACCEPTED SOLUTION

Accepted Solutions

V2:

dynamic sinus shock 50G (5% damping) / user defined:

measure_dyn_sinus.JPG

s_dyn=0,111588mm

static 1G:

measures_static_1g.JPG

s_stat=0,002175

s_dyn/s_stat=51,3

force_dy=51,3*3,611186N=185,3N

View solution in original post

4 REPLIES 4

workaround (attached)?

measure:

dyn.JPG

then static analysis

regards

paul

hrao-2
2-Explorer
(To:skunks)

Hi Paul

Thanks for your answer, now I understood the situation you mentioned. but what about below sample

I supposed this sample is fixed on shock-fixture by front two screws(x,y,z constrain) and rear support for y-direction.

And then do 50g half sine shock. so it's hard to get clear displacement as your sample. so I still don't know how to calculate the support force on rear side

Thanks for you help asdfdfsd.PNG

V2:

dynamic sinus shock 50G (5% damping) / user defined:

measure_dyn_sinus.JPG

s_dyn=0,111588mm

static 1G:

measures_static_1g.JPG

s_stat=0,002175

s_dyn/s_stat=51,3

force_dy=51,3*3,611186N=185,3N

hrao-2
2-Explorer
(To:skunks)

Thanks, smart solution.

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