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Module 1: Bondgraph Modelling & Decision Making

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Bond Graph Modelling & Decision Making - Lesson Summary

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The main points  from this model are:
There are 2 important variables one is known as the effort the other one is the flow.Effort is normally represented by e and flow is represented by f they are time dependent variables. Power is obtained by multiplying effort and flow.
Causality explains what actually causes the system to perform.
Advantages and disadvantages of modeling and simulationAdvantages
Virtual experiments( i.e. simulations) require fewer resources.Some system states cannot be brought about in the real system or at least not in a non-destructive manner(crash test, deformations, etc)
All aspects of virtual experiments are repeatable something that either cannot be guaranteed for the real system or would involve considerable cost.
simulated models are generally fully monitorable all output variables and internal states are available.
In some cases an experiment is ruled out for moral reasons for example, experiments on humans in the field of medical technology.
Disadvantages
Each virtual experiment requires a complete, validated, and verified modeling of the system.
The accuracy with which details are reproduced and the simulation speed of the models is limited by the power of the computer used for the simulation.
Elements of decision problemsCreative generation of alternativesIdentification and quantification of multiple conflicting criteria.Assessment and analysis of uncertainty associated with the what is known and what is unknown about the decision situation.
There are two types of thinking approaches Lateral Thinking and Vertical Thinking.
There are various axioms used in decision analysis; Probability, Order Rule and Substitution Rule.