Rank: 1343 based on 110 downloads (last 30 days) and 5 files submitted
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Marcos Cesar Ruggeri

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Company/University
Universidad Tecnologica Nacional

Personal Profile:

Aeronautical Engineer

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Files Posted by Marcos Cesar View all
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(last 30 days)
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17 Mar 2014 Screenshot ODE Solver through Galerkin Method This program solves Ordinary Differential Equations by using the Galerkin method. Author: Marcos Cesar Ruggeri differential equation..., ode, galerkin, approximation, ordinary, differential 27 3
  • 4.0
4.0 | 4 ratings
02 May 2010 Screenshot Matrix Analysis of Three Dimensional Bar Structures MABS3D This program is an extension of MABS2D to three-dimensional space (3D). Author: Marcos Cesar Ruggeri approximation, fea, fem, structures, 3d, elements 28 0
  • 5.0
5.0 | 1 rating
21 Nov 2009 Screenshot Matrix Analysis of Two Dimensional Bar Structures MABS2D This program solves bar structures of constant area through matrix analysis of structures. Author: Marcos Cesar Ruggeri aerospace, aeronautics, aerodef, fem, finite, elements 31 6
  • 4.5
4.5 | 2 ratings
08 Oct 2009 Screenshot Two Dimensional Isostatic Truss Structures Solver ITSS2D This program solves isostatic truss structures through the method of joints and the internal loads. Author: Marcos Cesar Ruggeri isostatic, truss, structure, aerospace, aeronautical, engineering 15 0
  • 5.0
5.0 | 1 rating
15 Jun 2009 Screenshot ISA chart This program generates the ISA chart, depending on the altitude increase. Author: Marcos Cesar Ruggeri aerospace, aeronautics, aerodef, isa, atmosphere, standard 9 1
  • 5.0
5.0 | 1 rating
Comments and Ratings by Marcos Cesar View all
Updated File Comments Rating
24 Nov 2010 Matrix Analysis of Two Dimensional Bar Structures MABS2D This program solves bar structures of constant area through matrix analysis of structures. Author: Marcos Cesar Ruggeri

Bret,

I sent you an email about this issue.

Thanks.

Regards.

01 Nov 2010 Matrix Analysis of Two Dimensional Bar Structures MABS2D This program solves bar structures of constant area through matrix analysis of structures. Author: Marcos Cesar Ruggeri

Giancarlo,

The syntax you typed is correct. There should be no problem if the .xls file is stored in the same current directory.

Keep in mind that this code was programmed, debugged and tested using MATLAB r2008a.

I am not sure if the same built-in functions such as "importdata" were also included in older versions.

Please keep me informed about this issue, and do not hesitate to contact me for further information.

Regards,

Marcos C. Ruggeri

13 May 2010 Advanced Mathematics and Mechanics Applications Using MATLAB, 3rd Edition Companion Software (amamhlib) Author: Howard Wilson

14 Sep 2009 Wind_rose Wind rose of direction and intensity Author: M MA

Victoria:

Please read my comment above. I had the same problem, but finally I could solve it!

Thanks,

Marcos Cesar Ruggeri

25 Apr 2009 Wind_rose Wind rose of direction and intensity Author: M MA

Wind directions are inverted.
If the vector D represents all values of wind directions COMING FROM (BLOWING FROM), rewrite line #147 as follows:

D=mod(90-D,360);

Thanks.

M.

Comments and Ratings on Marcos Cesar's Files View all
Updated File Comment by Comments Rating
25 Jun 2012 Matrix Analysis of Three Dimensional Bar Structures MABS3D This program is an extension of MABS2D to three-dimensional space (3D). Author: Marcos Cesar Ruggeri Besan, Besan

12 Nov 2011 ODE Solver through Galerkin Method This program solves Ordinary Differential Equations by using the Galerkin method. Author: Marcos Cesar Ruggeri Ekpes, Anie

This is the error message I received trying ti Run this program
Error in ==> odegalerkin at 54
alpha=poly(1);
how do I correct this error

24 Nov 2010 Matrix Analysis of Two Dimensional Bar Structures MABS2D This program solves bar structures of constant area through matrix analysis of structures. Author: Marcos Cesar Ruggeri Ruggeri, Marcos Cesar

Bret,

I sent you an email about this issue.

Thanks.

Regards.

24 Nov 2010 Matrix Analysis of Two Dimensional Bar Structures MABS2D This program solves bar structures of constant area through matrix analysis of structures. Author: Marcos Cesar Ruggeri Bret

Hi, when I run the examples in Matlab 2007 or 2010, I get errors:
For example1, I get:
??? Index exceeds matrix dimensions.

Error in ==> mabs2d at 166
if cDOF(I,2)==1

For example2, I get :
??? Error using ==> mtimes
Inner matrix dimensions must agree.

Error in ==> mabs2d at 199
u_red=inv(K)*P_red;

Is there something I'm missing?

01 Nov 2010 Matrix Analysis of Two Dimensional Bar Structures MABS2D This program solves bar structures of constant area through matrix analysis of structures. Author: Marcos Cesar Ruggeri Ruggeri, Marcos Cesar

Giancarlo,

The syntax you typed is correct. There should be no problem if the .xls file is stored in the same current directory.

Keep in mind that this code was programmed, debugged and tested using MATLAB r2008a.

I am not sure if the same built-in functions such as "importdata" were also included in older versions.

Please keep me informed about this issue, and do not hesitate to contact me for further information.

Regards,

Marcos C. Ruggeri

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