• Support PF! Buy your school textbooks, materials and every day products Here!

Quarter cylinder dam gate

  • Thread starter cambo86
  • Start date
  • #1
25
0
This is a picture of a quarter cylinder dam gate with a hinge at A and a stopper at B.
[Broken]
I need to find the force on the stopper at B as a function of the radius (R) and height of the water (h). I was going to do this by working out the moments around the hinge at A. I can solve for pressure forces and weight forces of the gate but I don't know the normal force from the ground. The hinge will have a force in the y direction so it will affect the normal force. I also don't know where to position my normal force, is it always going to be 1/2 of R or will it go through the combined centre of mass of gate and water above?
 
Last edited by a moderator:

Answers and Replies

  • #2
25
0
Alternatively am I thinking about this problem in the wrong way and need to try a different method to find the force on the stopper?
 
  • #3
6,054
390
Does the gate really touch the ground? Perhaps it only touches the stopper?
 
  • Like
Likes 1 person
  • #4
25
0
Thanks, I spoke to the lecturer today and he said that the reaction from the ground is zero.
 
  • #5
6,054
390
So, can you proceed with the solution then?
 
  • #6
25
0
Yes, I'm fine now.
 

Related Threads on Quarter cylinder dam gate

  • Last Post
Replies
2
Views
1K
  • Last Post
Replies
1
Views
1K
  • Last Post
Replies
18
Views
20K
  • Last Post
Replies
2
Views
6K
  • Last Post
Replies
15
Views
2K
  • Last Post
Replies
1
Views
4K
  • Last Post
Replies
3
Views
2K
  • Last Post
Replies
1
Views
383
  • Last Post
Replies
2
Views
3K
Top