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Any recommendation for screw set design for vib and shock environment

Any recommendation for screw set design for vib and shock environment

(OP)
Material is aluminum AL6101.
There are 3 single parts and connected by several M2.5 screws. Each part weight about 150grams
Screw will be M2.5 SS.
Target shock are 40G at x,y,z.

Currently what we do are
1. using loctite on screw
2. using thread insert

Any suggestions to ruggidize the design are welcomed.

RE: Any recommendation for screw set design for vib and shock environment

You might consider recessed fits so the parts take the shear load and not the fasteners.

Walt

RE: Any recommendation for screw set design for vib and shock environment

(OP)
Thanks Walt, I like this idea.

RE: Any recommendation for screw set design for vib and shock environment

Mirui,

Use a torque wrench.

--
JHG

RE: Any recommendation for screw set design for vib and shock environment

(OP)

Quote (drawoh)

Thanks, we do specify toruques on each screw when tighten them.
Thanks.

RE: Any recommendation for screw set design for vib and shock environment

(OP)

Quote (IRstuff)

We need to meet MIL-STD-810G vibration and shock test, for shock, it is 40G at x,y,z and 4 times each axis, 12 in total.

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