基于Simulink和VR技术的三线摆实验仿真研究

Simulink因其操作简便、灵活等优点在很多领域里被广泛应用。VR技术发展前景也十分诱人,它是一项具有深远影响的日新月异的新技术。以三线摆运动模型为例,探讨了结合Simulink软件和虚拟现实编程语言在虚拟物理实验中应用问题。通过虚拟现实编程语言VRML创建了转动惯量测量实验中三线摆运动环境的三维虚拟模型,利用Simulink构建了较为完善的、严格遵循客观物理定律的仿真系统。给出了三线摆在三维空间运动的物理模型,以及利用Simulink进行建模的详细步骤,并结合编写的VRML文件动态仿真了在三维环境下三线摆的运动过程。体现出利用Simulink虚拟现实工具箱仿真物理实验的便捷性、可靠性和科学性。利用它开发虚拟实验仿真系统必将对教育、教学质量的提高,学生学习兴趣及能力的培养起到重要作用。

On virtual simulation of three line-pendulum experiment based on simulink

Simulink has been used widely in many fields because of its easy operating and flexibility.The prospect of VR technology is also very attractive,it is an ever-changing new technology with profound impact.Taking the three line-pendulum experiment of physics as an example,the problems of combination of Simulink software and virtual reality programming language in a virtual physics experiments were discussed.The three-dimensional virtual model was created by virtual reality programming language based on the moving environment of the experiment of measuring the moment inertia by three line-pendulum,a simulation system which strictly followed the laws of physics and did not change with people’s subjective sense and with more comprehensive and objective was constructed by Simulink.Animations of the three line-pendulum movement in three-dimensional space were given;The physical model of movement of three line-pendulum in the three dimensional space was given,and the detail steps for modeling by Simulink was also given,the movement of the three line-pendulum in three dimensional environment combined with the written VRML file was simulated.The convenience,reliability and scientific properties of the simulation of physical experiment with Simulink and Virtual Reality Toolbox is displayed.The virtual simulation system developed with it will play an important role in education,improvement of teaching quality,interest of student to study and the training of the ability.