TY - GEN
T1 - Analysis of High Precision Moment of Inertia Measurement Method Based on Torsion Pendulum Method
AU - Li, Haoyue
AU - Xu, Yong
AU - Ding, Jiuhui
AU - Zhai, Kangrui
N1 - Publisher Copyright:
© 2021 Technical Committee on Control Theory, Chinese Association of Automation.
PY - 2021/7/26
Y1 - 2021/7/26
N2 - The accuracy of parameters such as the moment of inertia will directly affect the accuracy of the missile's orbit and attitude control, at present, the measurement of the moment of inertia mainly relies on experimental methods. The instrument for measuring moment of inertia by Torsional-pendulum method discussed in this article is aimed at calculating the damping coefficient and stiffness coefficient. It only needs to measure the angle, angular velocity and angular acceleration during the torsion pendulum to calculate the moment of inertia. Use accelerometer and gyroscope to measure angle and angular velocity respectively, and extract angular acceleration from them. Traditional methods have the disadvantages of amplifying noise and large overshoot when extracting or restoring the original signal from noisy signal, so it will use differential The tracker obtains the best approximation of the original signal to extract the more accurate angular acceleration, use the least square method to calculate the damping coefficient and stiffness coefficient, and then find the moment of inertia, which improves the calculation accuracy.
AB - The accuracy of parameters such as the moment of inertia will directly affect the accuracy of the missile's orbit and attitude control, at present, the measurement of the moment of inertia mainly relies on experimental methods. The instrument for measuring moment of inertia by Torsional-pendulum method discussed in this article is aimed at calculating the damping coefficient and stiffness coefficient. It only needs to measure the angle, angular velocity and angular acceleration during the torsion pendulum to calculate the moment of inertia. Use accelerometer and gyroscope to measure angle and angular velocity respectively, and extract angular acceleration from them. Traditional methods have the disadvantages of amplifying noise and large overshoot when extracting or restoring the original signal from noisy signal, so it will use differential The tracker obtains the best approximation of the original signal to extract the more accurate angular acceleration, use the least square method to calculate the damping coefficient and stiffness coefficient, and then find the moment of inertia, which improves the calculation accuracy.
KW - Differential tracker
KW - Moment of inertia
KW - Recursive least square method
KW - Torsional-pendulum method
UR - http://www.scopus.com/inward/record.url?scp=85117349219&partnerID=8YFLogxK
U2 - 10.23919/CCC52363.2021.9550715
DO - 10.23919/CCC52363.2021.9550715
M3 - Conference contribution
AN - SCOPUS:85117349219
T3 - Chinese Control Conference, CCC
SP - 6651
EP - 6655
BT - Proceedings of the 40th Chinese Control Conference, CCC 2021
A2 - Peng, Chen
A2 - Sun, Jian
PB - IEEE Computer Society
T2 - 40th Chinese Control Conference, CCC 2021
Y2 - 26 July 2021 through 28 July 2021
ER -