CAJ | 학술논문

利用小波分析在时频两域都具有表征信号局部特征的特点,对固体火箭飞行遥测过载数据进行了小波分解,然后从结构动力学理论出发提出了一种识别固体火箭截面剪力和弯矩的方法.结合某型固体火箭的遥测参数对火箭主要截面弯矩和剪力进行了识别,给出了识别结果.该方法对自由一自由飞行的同体火箭截面横向载荷的评估及设计具有重要的参考意义.
이용소파분석재시빈량역도구유표정신호국부특정적특점,대고체화전비행요측과재수거진행료소파분해,연후종결구동역학이론출발제출료일충식별고체화전절면전력화만구적방법.결합모형고체화전적요측삼수대화전주요절면만구화전력진행료식별,급출료식별결과.해방법대자유일자유비행적동체화전절면횡향재하적평고급설계구유중요적삼고의의.
Using the capability of wavelet analysis to characterize the signal's local property both in frequency and time doma-in, the wavelet decomposition of flight remoting overload data was performed. Then through the structural dynamic theory, a meth-od for identificating the transverse load of solid rocket was introduced. Based on an example of solid rocket remoting data, the re-suhs of transverse shear force and bending moment were given. Such a method is practical in load identification for similar prob-lems and much useful in engineering.