# Search Results

### Water particle velocity in storm sea states

I am looking for a formula to help estimate the water particle velocity in irregular waves specified by Hs and Tp instead of H and T. As a catch,...
Thread by: floating, Nov 21, 2016, 1 replies, in forum: Boat Design

A mooring company mentions they use a load RAO method for estimating mooring loads (see "Load RAO method " here). I would like to get background...
Thread by: floating, Sep 21, 2016, 0 replies, in forum: Boat Design

### Recommend classic book on mooring design

I am looking for recommendations for textbooks on mooring design for complex moorings, such as 3-leg moorings for large buoys or large ships that...
Thread by: floating, Sep 7, 2016, 4 replies, in forum: Boat Design

### How to calculate weather window or wave persistence statistics?

I would like to calculate wave persistence statistics such as the expected duration that wave height would remain below a certain height...
Thread by: floating, Apr 13, 2016, 1 replies, in forum: Boat Design

### Where to find holding factor for anchor?

A colleague said he expects a 1 metric tonne Danforth anchor in sand to have a 1:20 holding factor, and I'd like to understand where this...
Thread by: floating, Mar 22, 2016, 4 replies, in forum: Boat Design

### Breaking wave speed given Hs and Tp

I would like to work out the horizontal speed of the fastest breaking wave for a given sea state and water depth. Is there a formula for this? For...
Thread by: floating, Feb 4, 2016, 23 replies, in forum: Boat Design
7. Post

### Sampling requirements for accelerometer to detect slamming

If anyone is looking for these presentations, they are recorded here. If I figure out where the papers can be obtained from, I will post that.
Post by: floating, Oct 27, 2015 in forum: Boat Design

### Does duration of slam scale with Froude?

I would love confirmation of my following assumption: the duration of a slam event scales with Froude scaling. So if I make a 1:10 scale model and...
Thread by: floating, Oct 27, 2015, 3 replies, in forum: Boat Design
9. Post

### Slamming on vertical cylinder

Thanks! Am working my way through these.
Post by: floating, Sep 24, 2015 in forum: Boat Design

### Slamming on vertical cylinder

I am interested in studies of slamming on the bottom face of a vertical cylinder. I have found articles looking at other shapes (spheres,...
Thread by: floating, Sep 23, 2015, 2 replies, in forum: Boat Design
11. Post

### Sampling requirements for accelerometer to detect slamming

Thanks for this article! In your study, I think your 1kHz sampling rate works out to 333Hz at full scale. If that is correct then a 400Hz sample...
Post by: floating, Aug 17, 2015 in forum: Boat Design
12. Post

### Sampling requirements for accelerometer to detect slamming

Our buoy is atypical in shape (spar buoy) and could slam in storms. So, what I would like to do is to detect high impact events using the...
Post by: floating, Aug 17, 2015 in forum: Boat Design
13. Post

### Sampling requirements for accelerometer to detect slamming

The slams occur after the buoy is deployed, in storms. Inside the buoy is machinery that operates over the deployment. In the past sometimes this...
Post by: floating, Aug 14, 2015 in forum: Boat Design
14. Post

### Sampling requirements for accelerometer to detect slamming

"all it takes is one hit to set the bell vibrating": I am looking to detect the hit, rather than the structural response (ringing). We got some...
Post by: floating, Aug 14, 2015 in forum: Boat Design