×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Harmonic Response with Element Damping

Harmonic Response with Element Damping

Harmonic Response with Element Damping

(OP)
Hello,

I am wondering, what's the best way to do a harmonic response analysis with element damping (combin7).

My model is composed of shell elements. On some places I want to include some discrete damper elemets. The hole structure has many DOF's, so I'm thinking to do a modal superposition for computing the harmonic response. The logical steps should be:

1) Modal analysis with damping

2) Modal superposition by using the damped eigenmodes

So the question is, if both, element damping and other damping (dmprat, alphad, bethad, modal damping) will be respected.

Thank you in advance,
Alex

RE: Harmonic Response with Element Damping

Yes, all will be respected given your method. In ANSYS, damping is the sum of all types of damping specified.

See:

Theory Reference > Chapter 15. Analysis Tools > 15.3. Damping Matrices.

See also:

Structural Guide> Chapter 5. Transient Dynamic Analysis> 5.10. Other Analysis Details > Table 5.5. Damping for Different Analysis Types


------------
See FAQ569-1083 for details on how to make best use of Eng-Tips.com

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources