基于双轴承嵌套结构的弹载半捷联平台优化设计

doi:10.3969/j.issn.1000-1093.2018.04.012

兵工学报 ›› 2018, Vol. 39 ›› Issue (4): 724-730.doi: 10.3969/j.issn.1000-1093.2018.04.012

基于双轴承嵌套结构的弹载半捷联平台优化设计

郑涛¹，李杰¹，胡陈君²，蒋桂林³，郭利强³，钱海宁³

（1.中北大学仪器科学与动态测试教育部重点实验室，山西太原 030051；2.苏州中盛纳米科技有限公司，江苏苏州 215123；3.淮海工业集团有限公司，山西长治 047100）

收稿日期:2017-08-21 修回日期:2017-08-21 上线日期:2018-05-30
作者简介:郑涛（1991—），男，硕士研究生。E-mail:18634409496@163.com

通信简介：
李杰（1976—），男，教授，博士生导师。E-mail:lijie@nuc.edu.cn
基金资助:
高等学校中青年拔尖创新人才计划项目（2017年）

Optimization Design of Missile-borne Semi-strapdown Platform Based on Nested Structure of Double Bearing

ZHENG Tao¹, LI Jie¹, HU Chen-jun², JIANG Gui-lin³, GUO Li-qiang³, QIAN Hai-ning³

(1.Key Laboratory of Instrumentation Science & Dynamic Measurement of Ministry of Education, North University of China, Taiyuan 030051, Shanxi, China;2.Suzhou Fashion Nano Technology Co., Ltd., Suzhou 215123, Jiangsu, China;3.Huaihai Industry Group Co., Ltd., Changzhi 047100, Shanxi, China)

Received:2017-08-21 Revised:2017-08-21 Online:2018-05-30

摘要/Abstract

摘要： 在保证平台转动惯量和质量偏心不变的情况下，为进一步减小平台摆动角速率以提高解算精度，提出一种可减小轴承摩擦力矩的双轴承嵌套结构。该结构通过内外轴承嵌套实现对弹体滚转角速率的二次隔离，结合半捷联平台工作原理以及SKF轴承摩擦力矩算法，得到双轴承嵌套结构和单轴承结构的摩擦力矩理论数据，对比发现双轴承嵌套结构产生的摩擦力矩为单轴承产生摩擦力矩的35.7%. 为了对理论分析验证，进行了地面半物理仿真试验。结果表明，基于双轴承嵌套结构半捷联平台的摆动角速率和滚转角误差均减小为基于单轴承结构连接平台的50%，说明双轴承嵌套结构更有利于实现高精度解算。

关键词: 半捷联平台, 双轴承嵌套结构, 内筒, 摩擦力矩算法

Abstract: In order to further reduce the swing angular rate of the platform and improve the accuracy of the solution in the case that the rotational inertia and eccentricity of platform are unchanged, a double bearing nested structure is proposed to reduce the bearing friction force. The nested structure can be used to achieve the secondary isolation of the missile roll angular rate by the internal and external bearing nesting. The theoretical data of friction moments of double bearing nested structure and single bearing structure are obtained by using the operating principle of semi-strapdown platform and SKF bearing friction force algorithm. It is found that the friction moment generated by the double bearing nested structure is 35.7% of the friction moment of single bearing. The ground semi-physical simulation test is necessary to verify the theoretical analysis. The simulated results show that the swing angular rate and roll error of double bearing nested structure-based semi-strapdown inertial navigation system are 50% less than those of semi-strapdown platform with single bearing structure. Double-bearing nested structure is more conducive to high-precision solution than single-bearing structure. Key

Key words: semi-strapdownplatform, doublebearingnestedstructure, innertube, frictionmomentalgorithm

中图分类号:

TJ413⁺.6

郑涛，李杰，胡陈君，蒋桂林，郭利强，钱海宁. 基于双轴承嵌套结构的弹载半捷联平台优化设计[J]. 兵工学报, 2018, 39(4): 724-730.

ZHENG Tao, LI Jie, HU Chen-jun, JIANG Gui-lin, GUO Li-qiang, QIAN Hai-ning. Optimization Design of Missile-borne Semi-strapdown Platform Based on Nested Structure of Double Bearing[J]. Acta Armamentarii, 2018, 39(4): 724-730.

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第39卷
第4期2018 年4月兵工学报ACTA
ARMAMENTARIIVol.39No.4Apr.2018

[1]	段晓敏，李杰，刘俊. 被动式半捷联平台的动力学模型及其稳定性分析[J]. 兵工学报, 2014, 35(9): 1436-1442.
[2]	段晓敏，李杰，刘俊. 空气升力对被动式半捷联平台稳定性影响分析[J]. 兵工学报, 2014, 35(11): 1813-1819.

基于双轴承嵌套结构的弹载半捷联平台优化设计

Optimization Design of Missile-borne Semi-strapdown Platform Based on Nested Structure of Double Bearing

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