为揭示固体火箭发动机试验数据隐藏的规律,提出了在R统计语言环境下开展试验数据分析的新方法。该方法以数理统计理论为基础,首先对试验数据进行通用处理如变换、滤波等,然后再进行内弹道仿真、参数辨识等专业领域分析。为验证方法的有效性,设计开发了相应的数据处理系统。该系统采用模型化图形输入交互操作方式,文末以一发发动机试验实测数据进行分析,仿真其内弹道性能,验证了本方法的直观性、准确性和有效性。

In order to dig out the law behind solid rocket motor test data, a new research method based on the R language was presented. Based on the statistical theory, by use of the universal methods such as the transform and wave filter to process the given test data, and the special methods such as internal ballistic simulation, the identification of parameters of the solid rocket motor and so on, the data can be analyzed then the hidden information behind in the test data can be got. Furthermore, a data process software platform which using the modeled graph input and interactive operation was developed, and a real test data example which simulated the internal ballistic of the test motor was used to verify the intuitive, accuracy and effectiveness of this data analysis method.