Thanks....... that one was up my alley. But I am simple person In a much smaller type of life. Working and living on lakes. I use a lot of common sense. Thanks again.
i m.a sailor and i Love your videos and knowledge sharing for ship enthusiast that had a scientific background but not naval engineering degrees are just perfect. thank you
Hey Nick! Though you get only few views, and even less likes then some questionnable "youtube superstarts" with their stupid kitten videos (nothing against kitties) there are people in the world (me) who really appreciate and are interested in this kind of content, so please continue!
@@DatawaveMarineSolutions Super! Seems like your vids are prioritized according to some plan. Anyway your channel is most consistent and structured of all I met. Thank you very much for your efforts!
Yes. When we prepare lift charts for marine cranes, part of the process is checking crane lifting for all ranges of loads. In some cases, lift charts will restrict lifting to only happen when the ship is between specified drafts.
Great video! I've been wanting to make a maritime physical model out of Lego that students can use to put their bookwork into action, but I'll admit I'm a bit anxious on how to scale the math to work on a Lego-scale model and get the correct-ish results in class. Do you have any suggestions on how one might approach ship stability with Lego in a static test basin (assuming we have somewhat accurate scales and angle-measuring devices)? TIA
1.) If I remember from my childhood, I don't think normal lego bricks make waterproof seams. So you may need to build the hull in advance and paint a waterproof sealer over the outside. (I would try a clear wood sealer so you can still see the lego colors.) 2.) I would recommend starting with a barge instead of a ship. Build a very wide hull. Normally around a 4:1 length to beam ratio. The barge has a huge amount of stability, which will give you a wide margin for error when demonstrating. 3.) If you want, you can turn this into a full blown lab experiment. We have a technique called a stability test. It allows you to measure the exact center of gravity of the lego ship, just by using angle and draft measurements. I have a series of TH-cam videos that provide an overview of the concept: th-cam.com/video/8F93a7A2ug8/w-d-xo.html For more detailed information on the math, USCG publishes a guide on the stability test: NVIC 17-1 You can also contact me for information on preparing the math for the test. (sales@dmsonline.us) Some of the math may be a little lengthy, but the complicated formulas can be packed into a spreadsheet to save time.
@@DatawaveMarineSolutions Lego makes a variety of floating hull boards. The largest floating boat they've made is a relatively recent set. JANGBRICKS reviews the set in his video titled *Their biggest floating boat yet: LEGO City Ocean Exploration Ship review! 60266.* The set even includes a crane. It might be a good starting point for a crane on a ship demo.
A deeper look at the stability analysis from a mathematical perspective would be very interesting; do you intend to do another video going into more detail as to how the calculation is done and the kinematics work?
Not at the moment. The kinematics are explained in most books on basic ship theory. One reference was: K. J. Rawson and E. C. Tupper, Basic Ship Theory, 5th Ed. Volume 1, Woburn, MA, USA: Butterworth-Heinemann, 2001. I don't want to give the impression that these videos provide a full education on ship theory. And the full stability analysis is a paid service that DMS provides, which would mean giving away knowledge of company practices.
@@DatawaveMarineSolutions That makes sense; I ask since I was having a bit of a hard time following some of the explanations in this video, and find (possibly weirdly) that looking at the model, even at a high level, can really help understanding. Frequently, I find that trying to avoid at least a bit of math begets more confusion than the math itself would have caused. Thank you for the citation, that looks very interesting.
Hi Nick. Your work is commendable. Kindly compare the merits of X bow on M/Y Olivia O by Ulstein and the bow design by Damen yachts on their seaexplorer range. Thanks
One of the very few ads pertinant to my various interests and activities. Thanks for posting!
Thanks....... that one was up my alley.
But I am simple person In a much smaller type of life. Working and living on lakes.
I use a lot of common sense.
Thanks again.
i m.a sailor and i Love your videos and knowledge sharing for ship enthusiast that had a scientific background but not naval engineering degrees are just perfect. thank you
Hey Nick! Though you get only few views, and even less likes then some questionnable "youtube superstarts" with their stupid kitten videos (nothing against kitties) there are people in the world (me) who really appreciate and are interested in this kind of content, so please continue!
Thank you, Nick! 👍
Would it be possible to know if you gonna make a video about stern shapes? Especially for planning hulls?
It is on the list of videos. But probably not within the next year.
@@DatawaveMarineSolutions Super! Seems like your vids are prioritized according to some plan. Anyway your channel is most consistent and structured of all I met. Thank you very much for your efforts!
The weird thing is that even after a year of random videos I'm still interested in what Nick has to say
Thanks. Really interesting.
Does the allowable lift vary with how heavily the ship is loaded?
Yes. When we prepare lift charts for marine cranes, part of the process is checking crane lifting for all ranges of loads. In some cases, lift charts will restrict lifting to only happen when the ship is between specified drafts.
@@DatawaveMarineSolutions thanks. Fascinating subject.
Great video! I've been wanting to make a maritime physical model out of Lego that students can use to put their bookwork into action, but I'll admit I'm a bit anxious on how to scale the math to work on a Lego-scale model and get the correct-ish results in class. Do you have any suggestions on how one might approach ship stability with Lego in a static test basin (assuming we have somewhat accurate scales and angle-measuring devices)? TIA
1.) If I remember from my childhood, I don't think normal lego bricks make waterproof seams. So you may need to build the hull in advance and paint a waterproof sealer over the outside. (I would try a clear wood sealer so you can still see the lego colors.)
2.) I would recommend starting with a barge instead of a ship. Build a very wide hull. Normally around a 4:1 length to beam ratio. The barge has a huge amount of stability, which will give you a wide margin for error when demonstrating.
3.) If you want, you can turn this into a full blown lab experiment. We have a technique called a stability test. It allows you to measure the exact center of gravity of the lego ship, just by using angle and draft measurements. I have a series of TH-cam videos that provide an overview of the concept: th-cam.com/video/8F93a7A2ug8/w-d-xo.html
For more detailed information on the math, USCG publishes a guide on the stability test: NVIC 17-1
You can also contact me for information on preparing the math for the test. (sales@dmsonline.us) Some of the math may be a little lengthy, but the complicated formulas can be packed into a spreadsheet to save time.
@@DatawaveMarineSolutions Lego makes a variety of floating hull boards. The largest floating boat they've made is a relatively recent set. JANGBRICKS reviews the set in his video titled *Their biggest floating boat yet: LEGO City Ocean Exploration Ship review! 60266.* The set even includes a crane. It might be a good starting point for a crane on a ship demo.
A deeper look at the stability analysis from a mathematical perspective would be very interesting; do you intend to do another video going into more detail as to how the calculation is done and the kinematics work?
Not at the moment. The kinematics are explained in most books on basic ship theory. One reference was: K. J. Rawson and E. C. Tupper, Basic Ship Theory, 5th Ed. Volume 1, Woburn, MA, USA: Butterworth-Heinemann, 2001. I don't want to give the impression that these videos provide a full education on ship theory. And the full stability analysis is a paid service that DMS provides, which would mean giving away knowledge of company practices.
@@DatawaveMarineSolutions That makes sense; I ask since I was having a bit of a hard time following some of the explanations in this video, and find (possibly weirdly) that looking at the model, even at a high level, can really help understanding. Frequently, I find that trying to avoid at least a bit of math begets more confusion than the math itself would have caused. Thank you for the citation, that looks very interesting.
Hi Nick. Your work is commendable. Kindly compare the merits of X bow on M/Y Olivia O by Ulstein and the bow design by Damen yachts on their seaexplorer range. Thanks
Nick did that 3 years ago: th-cam.com/video/5eepu_owFHI/w-d-xo.html
@@Georgewilliamherbert thanks. Just watched
NO ACETRACTS
Um more than one person is probably going to lose their jobs