Research on a High-Precision Pointing System with Single-Stage Control

被引：0
|
作者：
Du Y. [1 ]
Wang X. [1 ]
Wang Y. [1 ]
机构：
[1] Lanzhou Institute of Physics, China Academy of Space Technology, Gansu, Lanzhou
来源：
Binggong Xuebao/Acta Armamentarii | 2023年 / 44卷 / 08期
关键词：
error elimination; high-precision; parallel mechanism; pointing system; single-stage control;
D O I：
10.12382/bgxb.2022.0292
中图分类号：
学科分类号：
摘要：
Achieving high-pointing accuracy is a primary technical challenge for a single-stage control pointing system. Eliminating the position-floating link of the pointing mechanism can significantly enhance pointing accuracy. A pointing system is proposed in the paper, which uses an RPS-SPS parallel mechanism without the floating position. The transmission theory and error elimination algorithm of this pointing mechanism validate its efficacy. A prototype is built and tested, and the test results show that the uniaxial error of the prototype is not greater than 0.004°, the synthetic pointing error is not greater than 0.006°, and the stability time is not greater than 100 ms both under loaded and no-loaded conditions. The prototype has the pointing function in two axes, with a working space of ± 9° in both axes. The theoretical model and test results confirm the feasibility and effectiveness of the system. The research lays a foundation for the engineering application of a high-precision pointing system with single-stage control. © 2023 China Ordnance Society. All rights reserved.
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页码：2477 / 2485
页数：8
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