# Module 7 -Peter Harijanto

Journal Entry For
Module 7 - Study Your Options
Created By
Glenn Katz

### Step 1 - Generative Design Framework

For my generative design framework I decided to into surface area vs. sun radiation.

• Things the analysis can evaluate
• Material sun damage
• Optimal umbrella geometry/shape
• Design Decision 1
• Constraints
• Two concentric circles
• Concentric circle 1 controls the base of my umbrella
• Concentric circle 2 controls the midpoint of my umbrella
• Goal
• Maximize surface area and minimize sun radiation
• I input the value for area and sun radiation and subtracted them to create a function for fitness that lets me optimize my design.
• Most Important Tradeoffs to Consider
• As surface area goes up sun radiation naturally goes up
• The goal of the optimization is to find a good balance between the two
• Given that my structure is an umbrella more surface area would provide more shade

### Step 2 - Generative Design Study

• I took the area of my surface and subtracted my sun radiation value.
• First I took my old umbrella structure which already calculated a surface area
• By doing this I created a function that would let me get an optimum design that maximizes surface area and minimizes sun radiation when I set Galapagos to maximize.

### Step 3 - Generative Design Study Results

• Below are the plots that analyze the surface area vs. sun radiation optimization of my building
• The bottom right shows that values of each iteration with the top being the most optimal
• This tool can be use to “reinstate” or look at other iterations that may be close to the optimal design
• The scatter plot on the bottom left shows how similar the iterations were
• Since the scatter plot is not condensed, there were a wide range of designs to consider
• This is probably since the maximizing surface area contradicts minimizing sun radiation
• The line graph on top is a fitness vs time graph which shows different fitness values as more iterations were analyzed
• The higher the fitness the more optimal it is
• The middle line graph is a multidimensional point graph that shows how the genome sliders are being manipulated
• ie: if slider 1 is high and slider 2 is low the line slopes down on that iteration