4 Membuat Model Sistem Dinamik

MEMBUAT MODEL SISTEM DINAMIK

Asep SofyanProdi Teknik Lingkungan ITB

TAHAPAN1. CONCEPTUALIZATION

Define the purpose of the model Define the model boundary and identify key variables Describe the behavior or draw the reference modes of the key variables Diagram the basic mechanisms, the feedback loops, of the system

2. FORMULATION Convert feedback diagrams to level and rate equations Estimate and select parameter values

3. TESTING Simulate the model and test the dynamic hypothesis Test the model’s assumptions Test model behavior and sensitivity to perturbations

4. IMPLEMENTATION Test the model’s response to different policies Translate study insights to an accessible form

PURPOSES

The purpose of a model usually falls into one of the following categories: to clarify knowledge and understanding of the system to discover policies that will improve system behavior to capture mental models and serve as a

communication and unifying medium.

STOCK AND FLOW

CONTOH STOCK DAN FLOW

CHARACTERISTIC PATTERN OF SYSTEM BEHAVIOR

FUNDAMENTAL STRUCTURES ANDBEHAVIOUR

Populasi awal 100 bakteri, angka pertumbuhan 10% Persamaan:

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PERSAMAAN: PERTUMBUHAN BAKTERI