Influence of Design Features and Gas Filling Parameters on Dynamically Tuned Gyroscope Characteristics

Authors: Qin Zihao, Podchezertsev V.P. Published: 12.04.2017
Published in issue: #2(113)/2017  
DOI: 10.18698/0236-3933-2017-2-4-20

Category: Instrument Engineering, Metrology, Information-Measuring Instruments and Systems | Chapter: Navigation Instruments  
Keywords: Navier - Stokes equations, gas flow, dynamically tuned gyroscope, gas dynamics, errors, gas-dynamic disturbance torque

The purpose of this work was to evaluate the influence of design features and gas filling parameters on characteristics of dynamically tuned gyroscopes (DTG). In order to do it, we solved the following tasks. First, we built a DTG gas-dynamic model based on Navier - Stokes equations, taking into consideration the specific design features of gyroscopes. Next, we solved the resulting equations with respect to the velocity and pressure in the end and radial clearance of the device. Finally, we defined the disturbance torque from the forces caused by the pressure and viscous friction.


[1] Podchezertsev V.P., Tsin’ Tszykhao. Gas environment impact on dynamically tuned gyroscope. XXXIX akademicheskie chteniya po kosmonaVtike [XXXIX Academic Readings on Cosmonautics]. Moscow, January 2015, pp. 511-512 (in Russ.).

[2] Podchezertsev V.P., Tsin’ Tszykhao, Tan Sinyuan’. Components of model of drift dynamically tuned gyro. AViakosmicheskoe priborostroenie [Aerospace Instrument-Making], 2015, no. 1, pp. 8-18 (in Russ.).

[3] Podchezertsev V.P. Razrabotka metodov i sredstv nastroyki i regulirovki pretsizionnykh dinamicheski nastraivaemykh giroskopov: dis. kand. tekhn. nauk [Methods and techniques development for settings and adjustments of precision dynamically tuned gyroscope: kand. tech. sci. diss.]. Moscow, Nauchtekhlitizdat Publ.,1986. 197 p.

[4] Ling Linben, Chen Renkang. Improve the tuned flexure gyro’s property by adjusting its inside gas dynamic pressure torque. Journal of Chinese Inertial Technology, 1998, vol. 6, no. 2, pp. 40-44 (in Russ.).

[5] Loytsyanskiy L.G. Mekhanika zhidkosti i gaza [Fluid and gas mechanics]. Moscow, Drofa Publ., 2003. 840 p.

[6] Sedov L.G. Mekhanika sploshnoy sredy. T. 1 [Continuum mechanics. Vol. 1]. Moscow, Nauka Publ., 1983. 528 p.

[7] Pel’por D.S., Matveev V.A., Arsen’yev V.D. Dinamicheski nastraivaemye giroskopy [Dynamically tuned gyroscopes]. Moscow, Mashinostroenie Publ., 1988. 264 p.