Analysis of deformation of rotor and influence on the performance of gyro based on B-spline wavelet FEM

Abstract

Some construct characteristics and composing material of the new Gyro's rotor are introduced. Some factors resulting in deformation of the rotor surface are analyzed. Under different loads such as the force of deflecting center, the change of temperature, the force of pressure and couple factors, the deformation of rotor is analyzed with the wavelet finite element simulation software. The vector distributing map of rotor reformation is given. The deformation resulting from the pressure force of photon is studied. Finally, the influence on Gyro's performance because of anomalous surface of rotor due to deformation of rotor is researched and the result is useful to forecast the performance of the drift of gyroscope. The disturbing moment resulting from the deformation of rotor can be compensated using the mathematic method, and provides an important reference for both design and optimization of the rotor.

Keywords

the rotor of new Gyro / the deformation of rotor / the wavelet finite element / the drift of Gyro

References

[1] Jianfeng Liu, Gannan Yuan, Shijun Zhao. The research on signal-obtaining pattern for a new type of gyroscope [J]. Journal of Marine Science and Application, 2003, 2(2): 46-52

[2] Rui Zhang, Zhihua Jin, Weifeng Tian. A signal-obtaining system of ESG [J]. Shipping Engineering, 2001, 9(4): 42-44 (in Chinese)

[3] Jianfeng Liu, Gannan Yuan, Lin Zhao, Fan-ming Liu. Measure and influence on the performance of Gyro for the surface of the new type of Gyro's rotor [J]. Journal of Chinses Intertial Technology, 2005, 13(2): 75-80 (in Chinese)

[4] Ming Yan, Decai Li, Zhihua Jin, Weifeng Tlan. Analysis of Rotor's Deformatiom and Disturbing Torque in Miniature ESG [J]. Journal of Chinses Inertial Technology, 2002, 10(5): 24-27 (in Chinese)

[5] Chunyan Zan, Qiji Tu, Hui Shi. Basic requirements for beryllium of ESG rotor [J]. Journal of Chineses Inertial Technology, 2003, 11(5): 63-66 (in Chinese)

[6] Jianfeng Liu, Gannan Yuan, Qiufeng Guo, Xiao Chen. The mathematical model analysis of a new type of Gyroscope Rotor's rotational intertia [J]. Ship Engineering, 2004, 10(5): 67-70 (in Chinese)