BIMtopia
/CEE 120C/220C Parametric Design & Optimization | Spring 2025
CEE 120C/220C Parametric Design & Optimization | Spring 2025
/
NAOYA MASUDA
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Naoya Masuda

Naoya Masuda

Journal Entry For
Module 7 - Study Your Options
ACC Folder Link
https://acc.autodesk.com/docs/files/projects/6db2c3ca-7a2c-4f34-96a1-8a8189c7754d?folderUrn=urn%3Aadsk.wipprod%3Afs.folder%3Aco.pRehaPLWQ8m6oUnk6E9x6w&viewModel=detail&moduleId=folders
Link to Student
NAOYA MASUDA

Please enter the following info in the fields above:

  • Your Name as the Card title
  • The link to your Module 7 folder in our Autodesk Construction Cloud project

Please also type the first few letters of your first name into the Link to Student field, then hover over your name from the list of matching records and click the blue plus sign to link this entry to your Design Journal.

Then, share your Design Journal entry here (replacing these instructions) ... Click the text area below the headers and just start typing your response. There's no need to add new properties.

Please include:

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Step 1 - Generative Design Framework

A very brief description of the design decisions from Step 1 following the Generative Design Framework.

  • Design Decision 1, Exterior Louver Angle
    • Design Variables
      • Louver tilt angle (0°–90°)
      • Louver spacing
    • Evaluators
      • Annual solar insolation (kWh/m²/year)
      • Visibility or view openness score
    • Most Important Tradeoffs to Consider
      • Increasing the angle improves shading (reduces cooling load) but decreases daylight and view quality.
  • Design Decision 2, Building Taper Ratio
    • Design Variables
      • Top floor scale factor
      • Number of setback steps
    • Evaluators
      • Total floor area
      • Exterior surface area
      • Annual solar exposure
    • Most Important Tradeoffs to Consider
      • A more tapered form improves solar performance and wind stability but reduces usable floor area and increases complexity.
  • Design Decision 3, Mid-Building Void (Atrium Height)
    • Design Variables
      • Void height
      • Void floor level
    • Evaluators
      • Lost floor area
      • Daylight penetration
      • Structural continuity
    • Most Important Tradeoffs to Consider
      • A taller void enhances natural lighting and visual openness but decreases usable space and structural efficiency.
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Step 2 - Generative Design Study

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In this assignment, I developed a Dynamo model to explore the design tradeoffs involved in selecting external louver configurations for a building facade. The model was driven by two key design inputs: louver angle and louver depth (projection distance).

As performance indicators, I defined two evaluation metrics:

  • View Openness, calculated as the ratio of unshaded wall area to total wall area (1 − LouverArea / WallArea), representing visual openness and daylight access.
  • Projected Shading Ratio, calculated as Total LouverArea / WallArea, representing the degree of solar shading density provided by the louvers.

These two outputs form the basis for analyzing tradeoffs between visual comfort and solar protection. By adjusting the louver angle and depth, the Generative Design tool visualizes a range of solutions across this performance space, helping identify balanced configurations.

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Step 3 - Generative Design Study Results

  • The screenshot of the Scatterplot or Parallel Coordinates Graph illustrating the tradeoff that you chose to model and study.
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  • Provide a brief explanation of what’s being shown in the Scatterplot or Parallel Coordinates Graph and how the tradeoff being illustrated would impact the design decision. What would you do with this info?
  • An image of your Dynamo Study Graph (showing all your nodes and the connecting logic) -- You can use the File > Export Workspace As Image... command in Dynamo to save a PNG image to upload with your posting.