Research on Modeling and Simulation in Virtual Experiment System

摘要

This paper proposes a model structure based on "mathematical model and solid model" and a simulation algorithm based on SPICE (Simulation Program with Integrated Circuit Emphasis) for virtual experiment system. In this model, the virtual experiment simulates real experiment via abstracting experiment scenes, instrument objects and element objects from actual experiment and constructing mathematical and solid model with object-oriented method. And familiar modeling methods and technologies are discussed in detail. In the simulation algorithm, SPICE is redeveloped and imbedded in the multimedia interface as simulating kernel, which succeeds in solving integration of simulation technology and multimedia technology. In the paper, an application example is also given. Test results show that the virtual experiment system achieves excellent performance in designability, arbitrariness of operation and interaction with sense of reality, which makes users operate it with great interest just like doing real experiments and gains good effect in experiment teaching.