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Taxonomy Distribution Report

Overview

  • Total Concepts: 581
  • Number of Taxonomies: 13
  • Average Concepts per Taxonomy: 44.7

Distribution Summary

Category TaxonomyID Count Percentage Status
PERF PERF 56 9.6% ✅
BRG BRG 55 9.5% ✅
CAT CAT 53 9.1% ✅
ANAT ANAT 51 8.8% ✅
FAM FAM 51 8.8% ✅
INOUT INOUT 47 8.1% ✅
Specialized Topics SPEC 46 7.9% ✅
IMP IMP 44 7.6% ✅
ARR ARR 43 7.4% ✅
MOT MOT 37 6.4% ✅
ROT ROT 35 6.0% ✅
INST INST 32 5.5% ✅
Foundation Concepts - Prerequisites FOUND 31 5.3% ✅

Visual Distribution

PERF                      ████  56 (  9.6%)
BRG                       ████  55 (  9.5%)
CAT                       ████  53 (  9.1%)
ANAT                      ████  51 (  8.8%)
FAM                       ████  51 (  8.8%)
INOUT                     ████  47 (  8.1%)
Specialized Topics        ███  46 (  7.9%)
IMP                       ███  44 (  7.6%)
ARR                       ███  43 (  7.4%)
MOT                       ███  37 (  6.4%)
ROT                       ███  35 (  6.0%)
INST                      ██  32 (  5.5%)
Foundation Concepts - Pre ██  31 (  5.3%)

Balance Analysis

✅ No Over-Represented Categories

All categories are under the 30% threshold. Good balance!

Category Details

PERF (PERF)

Count: 56 concepts (9.6%)

Concepts:

    1. Fan Performance
    1. Brake Horsepower
    1. Outlet Velocity
    1. Tip Speed
    1. Fan Static Pressure
    1. Fan Total Pressure
    1. Fan Efficiency
    1. Static Efficiency
    1. Peak Efficiency
    1. Fan Curve
    1. System Resistance
    1. System Curve
    1. Operating Point
    1. Duty Point
    1. Stall Region
  • ...and 41 more

BRG (BRG)

Count: 55 concepts (9.5%)

Concepts:

    1. Bearing Life
    1. L-10 Bearing Life
    1. L-50 Bearing Life
    1. Ball Bearing
    1. Spherical Roller Bearing
    1. Pillow Block Bearing
    1. Split Pillow Block Bearing
    1. Flange Mount Bearing
    1. Totally Split Roller Bearing
    1. Two-Bearing Housing
    1. Set Screw Mount
    1. Adapter Sleeve Mount
    1. Fixed Bearing
    1. Floating Bearing
    1. Bearing Lubrication
  • ...and 40 more

CAT (CAT)

Count: 53 concepts (9.1%)

Concepts:

    1. Fan Size
    1. Model Code
    1. Product Catalog
    1. AMCA Certified Ratings
    1. Performance Table
    1. Reading a Performance Table
    1. Interpolation
    1. Catalog Operating Limits
    1. Technical Description
    1. FanPedia vs Current Catalog
    1. Product Options
    1. Accessory Selection
    1. Motor Selection
    1. Drive Selection
    1. Fan Family Selection
  • ...and 38 more

ANAT (ANAT)

Count: 51 concepts (8.8%)

Concepts:

    1. Fan Housing
    1. Impeller
    1. Fan Inlet
    1. Fan Outlet
    1. Fan Shaft
    1. Bearing
    1. Fan Motor
    1. Drive Train
    1. Scroll Housing
    1. Tubular Housing
    1. Guide Vanes
    1. Nozzle and Windband
    1. Bypass Air Plenum
    1. Exploded View
    1. Housing Side Plate
  • ...and 36 more

FAM (FAM)

Count: 51 concepts (8.8%)

Concepts:

    1. Fan Family
    1. Centrifugal Fan
    1. Axial Fan
    1. Mixed Flow Fan
    1. Housed Centrifugal Fan
    1. Unhoused Centrifugal Fan
    1. Plenum Fan
    1. Plug Fan
    1. Inline Centrifugal Fan
    1. Square Inline Centrifugal Fan
    1. Tubeaxial Fan
    1. Vaneaxial Fan
    1. Panel Fan
    1. Ring Fan
    1. Pressure Blower
  • ...and 36 more

INOUT (INOUT)

Count: 47 concepts (8.1%)

Concepts:

    1. Inlet Funnel
    1. Inlet Venturi
    1. Inlet Box
    1. Integral Inlet Box
    1. Detached Inlet Box
    1. Free-Standing Inlet Box
    1. Evasé
    1. Transition Piece
    1. Companion Flange
    1. Flexible Connector
    1. Tube Adapter and Sleeve
    1. Inlet Silencer
    1. Outlet Silencer
    1. Flow Control
    1. Damper
  • ...and 32 more

Specialized Topics (SPEC)

Count: 46 concepts (7.9%)

Concepts:

    1. Construction Class
    1. Construction Material
    1. Stainless Steel Construction
    1. Aluminum Construction
    1. Coatings
    1. Spark Resistant Construction
    1. Non-Ferrous Material
    1. Spark Resistant Type A
    1. Spark Resistant Type B
    1. Spark Resistant Type C
    1. Rub Ring
    1. Rub Plate
    1. Fan Grounding Device
    1. High Temperature Construction
    1. Maximum Operating Temperature
  • ...and 31 more

IMP (IMP)

Count: 44 concepts (7.6%)

Concepts:

    1. Impeller Blade
    1. Blade Leading Edge
    1. Impeller Back Plate
    1. Impeller Shroud
    1. Impeller Hub
    1. Centrifugal Impeller
    1. Single Width Single Inlet
    1. Double Width Double Inlet
    1. Backward Inclined Impeller
    1. Backward Curved Impeller
    1. Airfoil Impeller
    1. Forward Curved Impeller
    1. Radial Bladed Impeller
    1. Radial Tip Impeller
    1. Material Handling Impeller
  • ...and 29 more

ARR (ARR)

Count: 43 concepts (7.4%)

Concepts:

    1. Direct Drive
    1. Belt Drive
    1. Sheave
    1. V-Belt
    1. Drive Service Factor
    1. Shaft Coupling
    1. Overhung Impeller
    1. Center Hung Impeller
    1. Fan Arrangement
    1. Arrangement 1
    1. Arrangement 2
    1. Arrangement 3
    1. Arrangement 3 SI and DI
    1. Arrangement 4
    1. Arrangement 7
  • ...and 28 more

MOT (MOT)

Count: 37 concepts (6.4%)

Concepts:

    1. Induction Motor
    1. EC Motor
    1. NEMA Frame Size
    1. Motor Enclosure
    1. ODP Motor
    1. TEFC Motor
    1. TEAO Motor
    1. TENV Motor
    1. Explosion Proof Motor
    1. Motor Service Factor
    1. Insulation Class
    1. Motor Efficiency Class
    1. Conduit Box
    1. C-Face Motor Mount
    1. Foot Mounted Motor
  • ...and 22 more

ROT (ROT)

Count: 35 concepts (6.0%)

Concepts:

    1. Viewed From Drive Side
    1. Rotation
    1. Clockwise Rotation
    1. Counterclockwise Rotation
    1. Rotation Arrow
    1. Discharge Position
    1. Discharge Angle
    1. Up Blast Discharge Position
    1. Top Horizontal Discharge
    1. Bottom Horizontal Discharge
    1. Down Blast Discharge Position
    1. Angular Discharge
    1. Rotation and Discharge Code
    1. DWDI Discharge Limits
    1. Axial Rotation Convention
  • ...and 20 more

INST (INST)

Count: 32 concepts (5.5%)

Concepts:

    1. Fan Installation
    1. Fan Base
    1. Unitary Base
    1. Isolation Base
    1. Inertia Base
    1. Vibration
    1. Vibration Isolation
    1. Isolator Deflection
    1. Neoprene Isolation Pad
    1. Rubber-in-Shear Isolator
    1. Spring Isolator
    1. Floor Mounted Isolation
    1. Ceiling Hung Isolation
    1. Seismic Restraint
    1. Snubber
  • ...and 17 more

Foundation Concepts - Prerequisites (FOUND)

Count: 31 concepts (5.3%)

Concepts:

    1. Air Movement
    1. Fan Speed
    1. Horsepower
    1. Airflow Volume
    1. Cubic Feet Per Minute
    1. Air Velocity
    1. Feet Per Minute
    1. Air Pressure
    1. Inches of Water Gauge
    1. Static Pressure
    1. Velocity Pressure
    1. Total Pressure
    1. Air Density
    1. Air Temperature
    1. Altitude
  • ...and 16 more

Recommendations

  • ✅ Excellent balance: Categories are evenly distributed (spread: 4.3%)
  • ✅ MISC category minimal: Good categorization specificity

Educational Use Recommendations

  • Use taxonomy categories for color-coding in graph visualizations
  • Design curriculum modules based on taxonomy groupings
  • Create filtered views for focused learning paths
  • Use categories for assessment organization
  • Enable navigation by topic area in interactive tools

Report generated by learning-graph-reports/taxonomy_distribution.py