Title :
The dynamic measurement of thrust misalignment in solid rocket motors based on load identification technique
Author :
Zhu, Chunmei ; Xu, Xiaoli
Author_Institution :
Dept. Of Mech. Eng., Beijing Inf. Sci. Univ., Beijing, China
Abstract :
The measurement of thrust misalignment in rocket motors is described. The dynamics of the thrust stand installation are analyzed using load identification method. The variables influencing the system errors are identified and their influence quantified. The direction of the thrust vector of rocket motor can be resolved over 0.25 ms interval to within 0.7 mrad. The angle of the overall impulse vector can be measured with precision of better than 0.35 mrad.
Keywords :
aerospace propulsion; measurement; rocket engines; dynamic measurement; load identification technique; solid rocket motors; thrust misalignment measurement; thrust vector; Displacement measurement; Equations; Force measurement; Frequency; Instruments; Mechanical variables measurement; Rockets; Solids; System testing; Transfer functions; dynamics; load identification; thrust misalignment;
Conference_Titel :
Electronic Measurement & Instruments, 2009. ICEMI '09. 9th International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-3863-1
Electronic_ISBN :
978-1-4244-3864-8
DOI :
10.1109/ICEMI.2009.5274531
