×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Contact US

*
*
*
*

Thanks. We have received your request and will respond promptly.

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

ROV Impact and Snagging Loads

thread311-497694

ROV Impact and Snagging Loads

ROV Impact and Snagging Loads

(OP)
Hi,

I’m looking for some advice. I need to design a subsea pipe and ensure that it can withstand ROV impact and snagging loads.

Can anyone provide some advice as to which equations to use for calculating these loads. I’ve checked the DNV RP’s and they don’t seem to cover snagging loads and ROV impact loading.

Would it be similar to trawl board impacts?

Thank you

RE: ROV Impact and Snagging Loads

I'm having difficulty in imagining that an ROV impact or snag is anywhere near as bad as a trawl board or fishing gear snag.

I know they are quite big, but they don't go very fast.

A towed sonar line is probably worse.

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

RE: ROV Impact and Snagging Loads

1) You could take a look in ISO 13628-8 ROV Interfaces on subsea production systems. It presents loads that ROV can apply during operation.
2) You can review some ROV specification sheets to determine maximum thrust and mass and work from there.
3) You can review the manip manufacturers to see how much load the manip can apply. For example, Schilling.

I would question how an ROV will snag in the first place? Which part of the ROV are you concerned about getting caught and how? And if it is operating in the region next to the pipeline, it will hardly be moving, and very slowly.

The loads you get from DNV-RP-F111 will be much higher.

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

Low-Volume Rapid Injection Molding With 3D Printed Molds
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Design for Additive Manufacturing (DfAM)
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a part’s function at the center of their design considerations. Download Now
Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. 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