Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

Register Log in
  • Congratulations TugboatEng on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Why is the FRF amplitude enlarged 10 times after using LSCE method estimation???

Status
Not open for further replies.
needtobefinished

needtobefinished

Mechanical
Joined
Jan 12, 2014
Messages
1
Location
IT
I have used the LSCE method to identify the modal parameters(Natural frequency, damping ratio, and modal constant(no normalization)).
And apply these parameters into the modal formula. And then draw the estimated FRF.

But the amplitude was enlarged 10times? WHY???
 
Status
Not open for further replies.

Similar threads

Harisrimt
  • Locked
  • Question Question
Shock test simulation using Ansys workbench
Replies
2
Views
2K
hacksaw
hacksaw
LS_SMS
  • Locked
  • Question Question
What is Significance of 33Hz in Seismic?
Replies
6
Views
3K
IRstuff
IRstuff
Sofistioelevib
  • Locked
firing frequency = numebr cylinder-1 ??? Is this really firing?
Replies
6
Views
4K
Sofistioelevib
Sofistioelevib
Mech Sundaram
  • Locked
  • Question Question
A vibrator table is there with two
Replies
2
Views
430
IRstuff
IRstuff
kwisatz_haderach
  • Locked
  • Question Question
Help identifying the source of vibration
Replies
10
Views
1K
electricpete
electricpete

Part and Inventory Search

Sponsor

Back
Top