Adisorn O.
Passing functions as arguments in MATLAB
MATLAB allows us to pass functions as arguments of another function. This is very useful when we call other functions (for example,...
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Adisorn O.
May 10, 20232 min read
Genetic Algorithm: Pseudo Code
(The code as generated by CHAT-GPT with my commentary as shown with ##) # Define parameters for Genetic Algorithm ## Commentary: This...
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Adisorn O.
May 7, 20232 min read
Understanding Genetic Algorithm (GA)
Adisorn Owatsiriwong Computer programs that "evolve" in ways that resemble natural selection can solve complex problems even their...
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Adisorn O.
May 2, 20231 min read
Matrix Representation of a Linear System for Multiple Load Cases Analysis
In many engineering design problems, we often have to solve the same linear system for variable load cases. As shown in the figure below,...
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Adisorn O.
May 1, 20230 min read
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Adisorn O.
May 1, 20230 min read
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Adisorn O.
May 1, 20230 min read
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Adisorn O.
Apr 30, 20230 min read
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Adisorn O.
Apr 29, 20231 min read
Newton-Raphson Method for solving nonlinear equation system and unconstrainted optimization problem
[updated 6.12.2023] For optimization problem, the optimum solution of (x1,x2) is found by setting the derivative of objectives of...
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Adisorn O.
Apr 17, 20231 min read
Getting to know MATLAB's Cell
Sometimes we want to store various data types into a single array. Thinking of a container that can store various things in separate...
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Adisorn O.
Apr 3, 20231 min read
DERIVATION OF ELEMENT STIFFNESS AND EQUIVALENT NODAL FORCE FOR BERNOULLI's BEAM ELEMENT
This article describes the stiffness matrix and equivalent nodal forces for Bernoulli's beam element. The derivation was formulated using...
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Adisorn O.
Apr 2, 20231 min read
MATRIX STRUCTURAL ANALYSIS: PART 1
A short course on Matrix Structural Analysis. This part involves planar trusses and space trusses. The aim is to familiarize the learners...
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Adisorn O.
Mar 30, 20231 min read
WIND AND SEISMIC LOADS WITH ETABS USING STATIC APPROACH
A workshop presented by Dr. Amnart Khampanit to undergrad students on wind and seismic loads calculation using ETABS. The presentation...
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Adisorn O.
Mar 30, 20231 min read
Gradient Descent Method with Examples
Gradient descent, or 'Downhill algorithm,' is one of the simplest algorithms for optimization problems. The algorithm searches for the...
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Adisorn O.
Mar 26, 20231 min read
Steps to Seismic Design using Structural Dynamics
This presentation introduces steps to perform seismic design using structural dynamics. The design procedure follows ASCE 7, emphasizing...
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Adisorn O.
Mar 17, 20231 min read
MATLAB's sum() function
MATLAB provides a simple but efficient sum( ) function to sum column or row vector, as well as all elements in arrays. Syntax:...
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Adisorn O.
Mar 9, 20231 min read
SHAPE OPTIMIZATION OF A 3-BAR TRUSS SYSTEM
We apply a non-linearly constrained optimization to a simple 3-bar truss system for this example. The following MATLAB scripts are...
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