基于Modelica的弹道导弹三自由度仿真

基于面向对象思想在Modelica语言平台上开发了弹道导弹三自由度仿真系统。在导弹三自由度动力学模型基础上，通过系统分解、功能实现和系统搭建3个步骤建立了Modelica语言平台上的仿真模型。所建立的仿真模型充分利用了Modelica语言的优势，具有较好的通用性和灵活性。最后，将建立的Modelica仿真模型与相应的C＋语言版本仿真系统进行了对比，结果表明全弹道仿真的结果位置误差在10m以内。

Three DOFs Simulation of Ballistic Missile Based on Modelica

The three DOFs simulation system of ballistic missile is developed in Modelica platform based on object oriented thought. According to dynamics model of missile, the simulation model in Modelica platform is established by three steps which are decomposing system, realizing function and building system. The model takes advantage of merits of Modelica fully, and has better generalization and flexibility. Finally, the results of simulation model depicted in this paper and the results obtained by pertinent simulation system in C ＋ ＋ language are contrasted. The research indicates that the error of whole trajectory simulation is in decameter.