×
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

a Problem In LQR controller

a Problem In LQR controller

a Problem In LQR controller

(OP)
Hi guys!!

Does anyone know anything about LQR method? I have a problem in my code to gain a correct k-gains!!

RE: a Problem In LQR controller

Plenty of people know things about the LQR method. Please be more specific with your question.

xnuke
"Live and act within the limit of your knowledge and keep expanding it to the limit of your life." Ayn Rand, Atlas Shrugged.
Please see FAQ731-376: Eng-Tips.com Forum Policies for tips on how to make the best use of Eng-Tips.

RE: a Problem In LQR controller

(OP)
In fact, I have a uniform beam with piezo actuator/sensor film and I want to control it based on LQR controller method.
For gaining accurate results and convergence, I have to use at least 4 mode shapes in my numerical method. As a result, as I increase my mode shape in my code, the number of final states, which I want to control, will increase. For example, I have 2 states: W and U. If I use only first mode shape ( n=1 ), my final states will be 2 and I will have 2 k-gains for them. If I use 4 mode shapes ( n=4 ), I will have 8 states and k-gains.

I don't know what I should do to have both accurate answer and only 2 k-gain ?!

I hope I could explain my problem clear.

Thank you in advance.glasses

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

White Paper – Your Construction ERP RFP Checklist
Selecting business software for a medium to enterprise-sized construction concern is extremely challenging in large part because most enterprise resource planning (ERP) suites originated in the world of repetitive manufacturing and are therefore a poor fit for a project and asset-centric business. However, midsize to large contractors need the predictable, auditable processes that ERP delivers. 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