×
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

Overall acceleration & velocity

thread384-14272

Overall acceleration & velocity

Overall acceleration & velocity

(OP)
If i know the overall acceleration to be 0.3 g, displayed on an analyzer for a frequency range of 10 Hz to 10 kHz. For a shaft rotating at a speed of 2700 rpm, how do i calculate the overall velocity(rms)mm/s.

thanks in advance.

.....kashyap   

RE: Overall acceleration & velocity

Because you have an overall acceleration, the reading is taking into account all vibration in the frequency range - meaning you don't know much in the way of details.  If you don't know the vibration levels at individual frequencies throughout the range, you can't convert from acceleration to velocity.  Even if you did know some of the vibration levels at some frequencies, it would be cumbersome to do such a conversion by hand and fraught with inaccuracies due to estimations and not knowing the various phase relationships.  Besides if you had the spectrum (the vibration vs frequency plot), then your software could probably do the integration/conversion for you.

regards..  kv

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! Already a Member? Login

Resources

White Paper - A Guide to 3D Printing Materials
When it comes to using an FDM 3D printer effectively and efficiently, choosing the right material at the right time is essential. This 3D Printing Materials Guide will help give you and your team a basic understanding of some FDM 3D printing polymers and composites, their strengths and weaknesses, and when to use them. Download Now
Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close