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Open AccessArticle

Optimization of a New High Rotary Missile-Borne Stabilization Platform

1
National Key Laboratory for Electronic Measurement Technology, North University of China, Taiyuan 030051, China
2
Key Laboratory of Instrumentation Science & Dynamic Measurement, North University of China, Taiyuan 030051, China
*
Author to whom correspondence should be addressed.
Sensors 2019, 19(19), 4143; https://doi.org/10.3390/s19194143
Received: 24 July 2019 / Revised: 17 September 2019 / Accepted: 18 September 2019 / Published: 24 September 2019
(This article belongs to the Special Issue Gyroscopes and Accelerometers)
The passive semi-strapdown roll stabilized platform is an inertial platform, which can isolate the rolling of a projectile body by a special mechanical device. In the passive semi-strapdown roll stabilized platform, the bearing device plays an important role in isolating the rolling of the projectile body. The smaller the friction moment of bearing, the smaller the swing angular velocity of the platform, the smaller the range of inertial sensors required, the higher the accuracy of the navigation solution. In order to further reduce the swing angular velocity of the platform and improve the navigation accuracy, the bearing nested structure that could reduce the friction torque is proposed. Combined with the working principle of the passive semi-strapdown roll stabilized platform, the mechanical calculation model of friction at the moment of bearing the nested structure was established. A series of simulation analysis and tests showed that the output stability value of the friction moment was 47% that of a single bearing; the roll rate of the platform based on the bearing nested structure decreased to 50% of that based on the single bearing structure; the position and attitude errors measured of the platform based on the bearing nested structure decreased to more than 50% of that based on the single bearing structure. It showed that the bearing nested structure could effectively reduce the friction moment, improve the axial reliability of the bearing, and provide a more stable working environment for the passive semi-strapdown roll stabilized platform. View Full-Text
Keywords: inertial measurement system; high-rotation ammunition; roll stabilized platform; bearing nested structure; friction moment inertial measurement system; high-rotation ammunition; roll stabilized platform; bearing nested structure; friction moment
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MDPI and ACS Style

Wei, X.; Li, J.; Zhang, D.; Feng, K.; Zhang, J.; Li, J.; Lu, Z. Optimization of a New High Rotary Missile-Borne Stabilization Platform. Sensors 2019, 19, 4143.

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