Suppressing Vibrations in a 2DOF Mass-Spring System Using a Tuned Mass Damper: Part 1 -- Introduction

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Adisorn Owatsiriwong, D.Eng. **Introduction** In many engineering applications, mechanical systems are subjected to dynamic loads that...

Adisorn O.

- 3 days ago
- 2 min

Type of Optimization Problems:Combinatorial & Fixed-Variable Problems

Separating combinatorial problems from fixed-variable problems involves understanding the nature of the variables you're dealing with in...

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Adisorn O.

- 4 days ago
- 1 min

Introducing OptiForm

Adisorn Owatsiriwong, D.Eng. Introducing OptiForm(tm): The Next Level in Shoring Design! We're thrilled to unveil our latest innovation...

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Adisorn O.

- Jul 11
- 1 min

Using result() in F90 function to return single array variable

The function with result() in f90 is developed to consistent with high level language like MATLAB. It's rather return the value of...

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Adisorn O.

- Jul 10
- 1 min

How to Create Matrix and Vector in modern Fortran (from 2003)

The way modern Fortran provides to create matrix and vector is more convenient, let's check the example below. OUTPUT: A = 1.00000000 ...

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Adisorn O.

- Jul 9
- 2 min

LAPACK Package Testing for LU Solver Ax = b

To solve the linear system Ax = b, LAPACK provide a function dgesv() see more detail https://netlib.org/lapack/explore-html-3.6.1/d7/d3b/...

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Adisorn O.

- Jul 8
- 1 min

How to pass array variables to F90 subroutine?

Consider this example of fix-sized and allocatable array case I: Fix-sized array Case II: Allocatable array One important thing to remark...

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Adisorn O.

- Mar 30
- 1 min

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Adisorn O.

- Mar 24
- 1 min

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Adisorn O.

- Mar 21
- 1 min

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Adisorn O.

- Mar 10
- 1 min

Approximated Dynamic Analysis using Ritz's Vectors

(Preview page) Cite As: Adisorn Owatsiriwong (2024). Approximated Dynamic Analysis using Ritz's Vectors(https://www.mathworks.com/matlabc...

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Adisorn O.

- Mar 9
- 1 min

Reduction of Dynamic Matrices using Static Condensation

(Preview page) Cite As Adisorn Owatsiriwong (2024). Reduction of Dynamic Matrices using Static Condensation(https://www.mathworks.com/mat...

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Adisorn O.

- Mar 9
- 1 min

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Adisorn O.

- Mar 6
- 1 min

Response to General Dynamic Loadings: Duhamel's Integral

Preview page (A complete paper is attached for download)

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Adisorn O.

- Feb 26
- 1 min

Understanding 3D Frame Element in Structural Analysis

Citation: Adisorn Owatsiriwong (2024). Understanding 3D Frame Element in Structural Analysis (https://www.mathworks.com/matlabcentral/fil...

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Adisorn O.

- Feb 24
- 1 min

Compute the Minimum Distance between 2 sets of coordinates

The code will compute and get the minimum distance between 2 sets of arbitrary numbers of points in 2D space. It also draws the lines...

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Adisorn O.

- Feb 23
- 1 min

Firefly Algorithm: Part 3 -- Design Example

Fig.2 Convergence plot (n = 20, maxGen = 20) This design example shows how the Firefly algorithm can be applied to the gravity wall...

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Adisorn O.

- Feb 23
- 3 min

Introduction to Julia and comparison with MATLAB syntax

OpenAI. (2024). ChatGPT (4) [Large language model]. https://chat.openai.com Jeff Bezanson, Stefan Karpinski, Viral B. Shah, and Alan...

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