Vibes, G's -vs- IPS 1

[Helotech]

Doing some vibration work here.

I was taught that G's are for acceleration numbers and IPS were for velocity.

My analysis software (Chadwick) wants IPS. I'm being given flight TM data in G's.

I'm trying to use 1g=386"/sec, but I've got a feeling that I'm being given garbage data.

Which ones are you guys using and what conversion formulas?

The lab is not the aircraft...

 

[GregLocock]

You need to know the frequency of the vibration, then you can convert g to ipsps and then ipsps to ips.

There is no other way.

Cheers

Greg Locock

Please see FAQ731-376 for tips on how to make the best use of Eng-Tips.

 

[aviat]

Here's a calculator with the formula's.

http://www.spaceagecontrol.com/calcsinm.htm