| 基于模糊控制的惯性测量单元温控系统数值分析 |
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| 引用本文： | 李双,杨明,何青.基于模糊控制的惯性测量单元温控系统数值分析[J].导航与控制,2016(4):38-43. |
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| 作者姓名： | 李双 杨明 何青 |
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| 作者单位： | 北京航天控制仪器研究所,北京,100039 |
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| 摘 要： | 针对捷联惯性测量单元(IMU)温控系统的高精度、高滞后性和时变性,提出一种基于CFD技术的捷联IMU模糊PID控制器设计方法.首先,对某型号IMU的热量传递机理进行分析,建立IMU传热特性三维数值计算模型,借助CFD软件Fluent的UDF功能实现对IMU数学模型温控系统的模糊PID控制.最后,通过改变环境温度获得IMU数学模型在瞬态计算条件下的温度分布规律,并将IMU不同部位的温升值与试验结果进行对比,分析温度分布对惯性仪表的影响.研究结果能为IMU温控系统的改进和优化提供依据.
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| 关 键 词： | 惯性测量单元 模糊控制 温控系统 传热特性 数值研究 |
Temperature Field Analysis of Inertial Measurement
Unit on Fuzzy Control |
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| LI Shuang-yu,YANG Ming and HE Qing.Temperature Field Analysis of Inertial Measurement
Unit on Fuzzy Control[J].Navigation and Control,2016(4):38-43. |
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| Authors: | LI Shuang-yu YANG Ming and HE Qing |
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| Institution: | Beijing Institute of Aerospace Control Devices;Beijing Institute of Aerospace Control Devices;Beijing Institute of Aerospace Control Devices |
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| Abstract: | A method based on CFD technology was proposed to improve the performance of the temperature control system in the inertial measurement unit (IMU) with characteristics of high precision, high hysteresis and time-varying. The mechanism of heat transfer in the IMU was analyzed and the software of Fluent with UDF function was utilized to investigate the fuzzy temperature control of the three-dimensional numerical model. The temperature distribution of the IMU was obtained by changing the temperature and boundary with transient calculation. The temperature distribution obtained by numerical calculation was compared with the results of experiment and the influence of temperature distribution on inertial instruments has been investigated. The results of the investigation can guid the design of the temperature control system in the IMU |
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| Keywords: | inertial measurement unit fuzzy control temperature control system heat transfer numerical investigation |
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