Crane Arm Model using beam theory

  • #1
198
27
Summary:
Can a Bernoulli or Timoshenko model be reasonable for a crane arm, on ships?
Can a Bernoulli or Timoshenko model be reasonable for a crane arm, on ships?

Yes, the arm might have a truss element, yes there is a hydraulic force to lift the arm (or cables).

But to some extent, can one model the crane arm as one of a simple beam (either Timoshenko or Bernoulli -- and, which one of those, if them)?

And, yes, there are dynamic effects of moving loads, etc. But for a simple model, would either of those two theories work?
 

Attachments

  • crane arm.JPG
    crane arm.JPG
    42.4 KB · Views: 75

Answers and Replies

  • #2
Baluncore
Science Advisor
9,374
3,865
Can a Bernoulli or Timoshenko model be reasonable for a crane arm, on ships?
Yes, but only as a first approximation.
In the second approximation, the points of attachment become critical to the design.

Marine applications will be engineered based on a long experience of previous successes, with only a few minor failures. Good design requires the hydraulics and control system be designed to protect the crane from exceeding design limits while operating or stowed.
 

Related Threads on Crane Arm Model using beam theory

  • Last Post
Replies
4
Views
2K
Replies
4
Views
940
Replies
1
Views
829
  • Last Post
Replies
1
Views
2K
  • Last Post
Replies
13
Views
22K
  • Last Post
Replies
15
Views
1K
  • Last Post
Replies
13
Views
2K
  • Last Post
Replies
15
Views
3K
  • Last Post
Replies
18
Views
1K
  • Last Post
Replies
1
Views
4K
Top