Tuesday, February 16, 2010

ICIL 2010: Prof. Ralph C. Huntsinger’s tutorial on Computer Simulation


Prof. Huntsinger will give a tutorial on Continuous Systems Simulation of Complex Engineering / Scientific Systems. Below a description on the topic:


Tutorial Proposal for ICIL 2010 RIO From Professor Ralph C. Huntsinger – ICIIL Vice President

The Simio Object Paradigm (beyond ARENA)

Simio is a SImulation Modeling framework based on Intelligent Objects. This may be a bit different than other simulation packages that you may be familiar with, even those that market themselves as object oriented. Simio is designed from the ground up to support the object modeling paradigm; however it also supports the seamless use of multiple modeling paradigms including a process orientation and event orientation. It also fully supports both discrete and continuous systems, along with large scale applications based on agent-based modeling. These modeling paradigms can be freely mixed within a single model.

The intelligent objects are built by modelers and then may be reused in multiple modeling projects. Objects can be stored in libraries and easily shared. A beginning modeler may prefer to use pre-built objects from libraries; however the system is designed to make it easy for even beginning modelers to build their own intelligent objects for use in building hierarchical models. An object might be a machine, robot, airplane, customer, doctor, tank, bus, ship, or any other thing that you might encounter in your system. A model is built by combining objects that represent the physical components of the system. A Simio model looks like the real system. The model logic and animation is built as a single step. An object may be animated to reflect the changing state of the object.

For example, a forklift truck raises and lowers its lift, a robot opens and closes its gripper, and a battle tank turns its turret. The animated model provides a moving picture of the system in operation. Objects are built using the concepts of object orientation. However unlike other object oriented simulation systems, the process of building an object is very simple and completely graphical. There is no need to write programming code to create new objects. The activity of building an object in Simio is

identical to the activity of building a model – in fact there is no difference between an object and a model. This concept is central to the design of Simio. Whenever you build a model it is by definition an object that can be instantiated into another model. For example, if you combine two machines and a robot into a model of a work cell, the work cell model is itself an object that can then be instantiated any number of times into other models. The work cell is an object just like the machines and robot are objects.


Simio Intelligent Objects: The Future of Simulation

Simio is designed to simplify model building by promoting a modeling paradigm shift from the process orientation to an object orientation. Simio is a simulation modeling framework based on intelligent objects. The intelligent objects are built by modelers and then may be reused in multiple modeling projects. Although the Simio framework is focused on object-based modeling, it also supports a seamless use of multiple modeling paradigms including event, process, object, and agent-based modeling.

The Simio framework is a graphical object-oriented modeling framework as opposed to simply a set of classes in an object-oriented programming language that are useful for simulation modeling. The graphical modeling framework of Simio fully supports the core principles of object-oriented modeling without requiring programming skills to add new objects to the system.


A ZIP power-point presentation is attached … This will be made available to all conference attendees.

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