×
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!

*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

Physical Test Data

Physical Test Data

Physical Test Data

(OP)
Hello all!
I'm wondering if one could find any desired test data on some database?!
of course there are infinite examples while there are only few already made files,so shall we use the available ones as the elements to make any composition out of them or the solution is to make some real tests and feed in the results in some fancy way or what?
im really new to this software and need it to optimize a for-bar mechanism regarding the bar lengths and the position of the joints.
thank you all for donating your time and patience.

RE: Physical Test Data

No, there are very few bits of adequately documented correlation data that are freely available. The good news is that various configurations of 4 bar link are easily calculated by hand. The 'fancy' way of correlating data is to model the instruments on the real test item, put your model through the same excitation, and compare outputs.

Cheers

Greg Locock


New here? Try reading these, they might help FAQ731-376: Eng-Tips.com Forum Policies http://eng-tips.com/market.cfm?

RE: Physical Test Data

(OP)
Hi Greg!
first of all let me express my gratefulness for your exact, quick and fruitful help.
but since i'm not that much into Adams, i ask some ambiguities of mine:
what do you mean of "to model the instruments on the real test item"?
does it mean i should make a real and physical model including buying some torque meters,bars etc and set up the mechanism and create the "Physical Test Data " worksheet for example by using the data acquisition method in matlab,any whre? or im false n it means im about to create some computer modeling for the four-bar link all happening in the computer?
may you receive help in some unexpected days of your life when you are needy for it when you are a helpseeker!

RE: Physical Test Data

Yes, I mean that my models are not regarded as trustworthy unless we have correlated them to physical real world tests on a similar vehicle. Even then we regard them as useful indicators of likely behavior rather than absolutely reliable models.

So we instrument cars with 50 or 100 channels of measuring gear, do some maneuvers, then make the model do the same maneuvers, and see how well the instrument readings line up.

Cheers

Greg Locock


New here? Try reading these, they might help FAQ731-376: Eng-Tips.com Forum Policies http://eng-tips.com/market.cfm?

RE: Physical Test Data

(OP)
Thank You Greg!
regards

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


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