×
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

Designing and Testing to Meet Standard Vibration Test Curves

Designing and Testing to Meet Standard Vibration Test Curves

Designing and Testing to Meet Standard Vibration Test Curves

(OP)
Can someone explain how to design and test a product to meet the requirements for standard random vibration test curves for equipment installed in fixed-wing aircraft? I have an Acceleration Power Spectral Density vs. Frequency curve that I'm having a hard time understanding.

RE: Designing and Testing to Meet Standard Vibration Test Curves

This is a HUGE area.  You might want to start by familiarizing yourself with the testing methodology.  A good place to start would be MIL-STD-810F, Method 514.5 (available on-line) that explains some of the basic concepts for testing of payloads on fixed wing aircraft.  You should also pay particular attention to Appendix B, which describes some basic engineering information on vibration testing in general.  

In order to do this task, you will probably need to perform a finite element analysis of the article in order to calculate the vibration modes and its response to dynamic (or quasi-static) loading.  After you have optimized the dynamic response and have built the hardware, you will probably need to verify the modes (prior to a vibration test) through an experimental modal analysis.  After you have correlated the modes with the analytical model and are satisfied that nothing will break during testing, you could hand-off the article to a test lab that will perform the actual qualification test.

pj

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