How can I simulate motion of buoy due ocean waves in 2D or 3D ?

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Muhammad Luqman Amiruddin
评论： rees adah 2021-5-17
hi, I'm new in matlab. can any one help me please? ocean waves is sine waves, I'm not understand how to simulate the motion of bouy due ocean waves in matlab, maybe any code or toolbox can represent about that.

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Chad Greene
Chad Greene 2015-3-18
Run this:
x = 1:.1:100; % horizontal distance
lambda = 20; % wavelength
c = 5; % wave speed
A = 1.5; % wave amplitude
% Initialize plot:
hold on
xlabel('distance (m)')
ylabel('wave height (m)')
box off
axis([0 100 -5 5])
% Make an animation:
for t= 0:.1:10
% Calculate wave height along x at time t:
y = A*sin((2*pi/lambda)*(x-c*t));
% Plot wave:
hwave = fill([x,100,0],[y,-5,-5],[.01 .44 .61],'edgecolor','b');
% Get buoy height if buoy is at x = 75 m:
ybuoy = y(x==75)+.1;
hbuoy = plot(75,ybuoy,'ko','markersize',16,'markerfacecolor','r');
% Draw a frame, wait 1/10 second, delete objects and repeat loop:
drawnow
pause(.1)
delete([hwave hbuoy])
end
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Muhammad Luqman Amiruddin
Muhammad Luqman Amiruddin 2015-5-20
hello Mr. Chad Greene, can i ask you some question again? do you understand about simulink? especially SimHydraulic in Simscape. i have problem to make velocity hydraulic motor to constant. i will attach my system printscreen. thank you.

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Toby
Toby 2017-6-21
For anyone that stumbles on this question, there is now a MATLAB/Simulink simulation package for bodies in waves, distributed by the US Dept. of Energy:
http://wec-sim.github.io/WEC-Sim/
If you'd rather code up the basic equations yourself, you can do something like this:
https://www.researchgate.net/publication/272092752_Dynamics_of_a_Floating_Platform_Mounting_a_Hydrokinetic_Turbine

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