commit 26122bc797c140e8f5706d0dfd28b02e3b19e724
parent 30d31cdce80b8e388f7d04f9ceac767ac065c6a5
Author: Ivan Gankevich <i.gankevich@spbu.ru>
Date: Sun, 15 Mar 2020 16:06:32 +0300
Fix todos.
Diffstat:
2 files changed, 51 insertions(+), 8 deletions(-)
diff --git a/main.tex b/main.tex
@@ -23,7 +23,7 @@
Ivan Gankevich\textsuperscript{*}\orcidID{0000-0001-7067-6928} \and\\
Artemii Grigorev \and\\
Vasily Khramushin\orcidID{0000-0002-3357-169X} \and\\
- Ivan Petriakov
+ Ivan Petriakov\orcidID{0000-0001-5835-9313}
}
\titlerunning{Simulation of air flow around ship hull and its effect on ship motions}
@@ -95,16 +95,20 @@ time-consuming for such a task and there is no reliable way to obtain all the
derivatives for a particular parameter: sensors measure one particular
derivative and all other derivatives have to calculated by numerical
differentiation or integration, and integration has low accuracy for time
-series of measurements TODO. The simplest way to obtain those parameters is to
-simulate ship motion on the computer and save all the parameters in the file
-for future analysis.
+series of measurements~\cite{kok2017sensors}. The simplest way to obtain those
+parameters is to simulate ship motion on the computer and save all the
+parameters in the file for future analysis.
Arguably, the largest contribution to ship motion besides ocean waves is given
by wind forces: air has lesser density than water, but air motion acts on the
area of ship hull which is greater than underwater area due to ship
-superstructure. Steady wind may produce non-nought roll angle TODO, and thus
-have to be taken into account when determining initial static ship stability
-parameters.
+superstructure. Steady wind may produce non-nought roll angle, and thus have to
+be taken into account when determining initial static ship stability
+parameters. Similar studies either focus on capsizing
+probability~\cite{bulian2004roll} or use wind tunnel to perform
+simulations~\cite{andersen2013wind}, whereas our work focuses on wind magnitude
+and direction on the ship hull and its effect on ship motions that can be
+integrated in onboard intelligent systems.
In this paper we investigate how wind velocity field can be simulated on the
boundary and near the boundary of the ship hull. We derive a simple
@@ -492,7 +496,9 @@ ship hull. On the ship hull boundary this model is equivalent to the known
formula for potential flow around a cylinder. Near the boundary this model is
close to this formula, but has slightly smaller decay. In both cases the model
satisfies boundary conditions and continuity equation (conservation of mass),
-which makes it suitable for physical simulations.
+which makes it suitable for physical simulations. The main advantage of the
+model is its simplicity, the use of Cartesian coordinates and its applicability
+to bodies of any geometry.
We applied this model to simulate ship motions under the effect of wind with
constant speed and direction (and in the absence of all other effects except
diff --git a/references.bib b/references.bib
@@ -0,0 +1,37 @@
+
+@Article{ bulian2004roll,
+ author = {G Bulian and A Francescutto},
+ title = {A simplified modular approach for the prediction of the roll
+ motion due to the combined action of wind and waves},
+ journal = {Proceedings of the Institution of Mechanical Engineers, Part
+ M: Journal of Engineering for the Maritime Environment},
+ volume = {218},
+ number = {3},
+ pages = {189--212},
+ year = {2004},
+ doi = {10.1243/1475090041737958}
+}
+
+@Article{ andersen2013wind,
+ title = {Wind loads on post-panamax container ship},
+ journal = {Ocean Engineering},
+ volume = {58},
+ pages = {115--134},
+ year = {2013},
+ issn = {0029-8018},
+ doi = {10.1016/j.oceaneng.2012.10.008},
+ author = {Ingrid Marie Vincent Andersen},
+}
+
+@Article{ kok2017sensors,
+ year = {2017},
+ volume = {11},
+ journal = {Foundations and Trends in Signal Processing},
+ title = {Using Inertial Sensors for Position and Orientation
+ Estimation},
+ doi = {10.1561/2000000094},
+ issn = {1932-8346},
+ number = {1-2},
+ pages = {1--153},
+ author = {Manon Kok and Jeroen D. Hol and Thomas B. Schön}
+}
