Design And Implementation Of Virtual Experiment Software For Middle School Electromagnetics Based On Engine Drive

With the rapid development of Virtual Reality technology,it slowly changes the traditional teaching model.Integrating Virtual Reality technology into experimental teaching of middle school physics,which enriches the teaching resources of physics experiments.VR virtual experiment teaching is highly interactive and has a good sense of experience.It can easily complete experiments that are impossible in reality and turn abstract physical principles and concepts into operable methods.The combination of Virtual Reality technology and education is rare,more common is virtual simulation teaching,lacking practical operation experience and sense of reality.To this end,this paper has studied the virtual experiment of middle school electromagnetics based on engine driving.The main work is summarized as follows:(1)An engine architecture is designed to support the development of virtual software for electromagnetics.The engine can support the equipment function package of electromagnetic experiments and drive the entire experiment process.The electrical engine treats the connected circuit as an electrical world firstly,uses the relevant middle school physics theorem and graph theory knowledge to establish a basic data structure.Then calculate the attributes of the equipment components and the circuit logic.Finally,the circuit connection is output as a character string.The magnetic engine uses the principle of superposition to analyze the distribution characteristics of the magnetic field of the energized solenoid,to achieve the simulation of the magnetic field effect.Combined with the design of the electric engine,the magnetic field effect is presented.(2)A method of experimental equipment packaging based on electromagnetics engine is given.Firstly,a 3D model is established for the equipment,and the model is imported into the Unity3D development tool.Then,basic physical attribute components and interactive components in virtual environment are added to the outside of the model preform.Finally,this paper classifies the equipment,combines the principle of electromagnetic engine,and adds virtual special effects and completes the specific packaging of their respective equipment functions under the condition of conforming to the objective facts.(3)An experimental development process-driven development model based on electromagnetics engine is given.The workflow modeling idea is adopted to establish a model for the experimental process under the support of equipment.The paper makes a detailed design for the energized solenoid experiment,the experiment of exploring the rule of the voltage of the series circuit and the experiment of measuring the electric power of the small light bulb from the experimental report.Experiment operation and record the experimental data during the experiment in virtual environment.Finally,observe whether the experimental data can draw the correct experimental conclusions to achieve the experimental purpose.