×
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

ADAMS CAR / Curve modification / Smoothning

ADAMS CAR / Curve modification / Smoothning

ADAMS CAR / Curve modification / Smoothning

(OP)
Hi there,

I have my lateral accelration plot, using the data [lateral acceleration] I am trying to actuate a rotory actuator.
I am not able to achieve a smooth operation because my curve is not smooth. Moreover I want it to smoothly transition from 0G to the real time G acceleration.
I tried using STEP and SPLINE, but unable to get desired result.. Can someone help me?


Viele Grüße
Pulkit Sharma
Replies continue below

Recommended for you

RE: ADAMS CAR / Curve modification / Smoothning

Does this have to be done inside ADAMS during the run? I don't know how that would be done, but you need to either get rid of the glitches by improving your model, or do some sort of data cleanup (low pass filter?) on the data you supply to the actuator. Sorry I have no idea how to do the latter.

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: ADAMS CAR / Curve modification / Smoothning

(OP)
Exactly,
I did try low pass... But still I am confused. The low pass function is a part of "Controls Toolkit"
I created a state variable, which inputs the lateral acceleration. But I am unable to use this variable for Low-Pass, because here the options are a little bit different, and I thick there could be a slight chance that the control Block thing is designed to use with MAT/SIMULINK (ADAMS Controls), which I am trying to avoid to use.



I have read you quite alot.. not many people can help me, but for sure, you can..

RE: ADAMS CAR / Curve modification / Smoothning

Not in this case. Have you tried debugging your model to make it run more smoothly? Try using dynamic constant radius instead of static. That sort of glitch in the latacc curve is odd, to say the least.

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: ADAMS CAR / Curve modification / Smoothning

(OP)
By Debugging, do you mean Solver --> Debugging (EPRINT)?
I am unable to understand the output of that.. Also, I am currently trying to use PID to solve my problem.. It's definitely a big mess, but i am jumping into it..

RE: ADAMS CAR / Curve modification / Smoothning

(OP)
Yeah, i am on it.. Although, I guess it is because of my geometry. the Front suspension is connected with the body with just one point in the center of the chassis.. and that too is a rotary actuator.

Viele Grüße
Pulkit Sharma

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



News


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