Shock mount selection procedure

[mpvnaresh]

Hi

I need to select a shock mount for sensitive electronic components for a control panel for naval applications.

Can any one share any document , explaining step by step procedure for shockmount selection(preferebly in SI units)

 

[izax1]

Is it one single shock mount you are applying?

In order for you to select the correct shock mount, you need to know the dynamic behavior of your electronic component. And compare that to the shock. Shock duration (gives you the frequency), shock wave form etc. Generally, you will need to decouple the dynamic properties of the Electronic Component to the shock frequencies.
In order to give a more precise and useful answer, more information is needed.

Rgds Bernt

 

[IRstuff]

Is this for MIL-S-901? There is no "selection," although you need to design to the specified shock and then find the mount that meets YOUR design requirement.

TTFN (ta ta for now)
I can do absolutely anything. I'm an expert!

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[mpvnaresh]

Exactly , I am designing it.
But for designing it i have got few documents , But all of them explains the calculation method by considering the component to be isolated as a rigid mass.
In my case the component is is a excitation panel (assume a box with number of sensitive electronic components inside). We have kept isolators at the bottom of the box which is attenuating the shock and transmitting a shock of 160 g to a sensitive electronic component whose mass is 6 kg, fragility is 15 g.
Now i need to design a shock mount for this sensitive component , which can bring the shock down from 160 g to 15 g .
In the same way i need to kill the shock in the remaining two horizontal directions. Can any one help me with this ..

 

[GregLocock]

Without a better definition of the shock I cannot help other than with general principles, but I'd guess you assume a SDOF system and just adjust the resonant frequency and the damping util you get down to 15g on the equipment side. I imagine this is covered in detail in textbooks with titles like "Shock and vibration"

Cheers

Greg Locock


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[mpvnaresh]

Thank you