固体火箭发动机试验数据特殊拐点研究

Research on Special Inflection Point of Solid Rocket Motor Test Data

针对固体火箭发动机地面试验采集的数据曲线形态各异致使特殊拐点难以按照火箭发动机试验数据处理方法(国家军用标准)描绘的问题。提出了一种计算几何理论的计算特殊拐点新方法,分析了火箭发动机试验数据特殊拐点描绘相应的数学算法,使用LabWindows/CVI开发了火箭发动机试验数据处理软件,实现了快速准确描绘出火箭发动机试验数据的特殊拐点。仿真结果表明,改进方法提高了数据分析精度和速度。结果为数据分析的可靠性和有效性奠定了的基础。

Data curves of solid rocket motor ground tests＇ collection are so various with shapes that the special inflection points are difficult to depict in accordance with the rocket motor test data processing method （National Mili- tary Standard）. To solve this problem, this paper raised a new method of calculating the special inflection point based on computational geometry theory. This method analyses the corresponding mathematical algorithm of rocket motor test data characteristic points, uses LabWindows/CVI to develop a rocket motor test data processing software, realizes quickly and accurately description of the special inflection point of the rocket motor data. The simulation re- sults show that the method improves the accuracy and speed of data analysis.