无人机惯导减振系统设计及其支架拓扑优化

王平; 张广鹏; 尉飞; 梁志超; 冯小春

doi:10.13433/j.cnki.1003-8728.20180226

无人机惯导减振系统设计及其支架拓扑优化

doi: 10.13433/j.cnki.1003-8728.20180226

1.
西安理工大学机械与精密仪器工程学院, 西安 710048;
2.
中国电子科技集团公司第五十四研究所, 石家庄 050081

基金项目:

国家自然科学基金项目（51375379）、陕西省重点研发计划项目（2017ZDXM-GY-133）及陕西省重点实验室科研计划项目（14JS062）资助

详细信息

作者简介:
王平(1981-),博士研究生,研究方向为惯性器件、导航技术以及惯导结构优化设计,hharmony@163.com

通讯作者:
张广鹏,教授,博士生导师,gpzhang@xaut.edu.cn

计量
- 文章访问数: 272
- HTML全文浏览量: 38
- PDF下载量: 69
- 被引次数: 0
出版历程
- 收稿日期: 2017-10-09
- 刊出日期: 2018-11-05

Vibration Isolation Design and Bracket Topology Optimization for UAV Inertial Navigation System

1.
School of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, Xi'an 710048, China;
2.
The 54 th Research Institute of China Electronics Technology Group Corporation, Shijiazhuang 050081, China

摘要

摘要: 支架作为惯导减振系统的重要组成部分，其动态特性对惯导减振系统的影响不可忽视。以某型号无人机惯导减振系统为例，根据其动态特性要求，对该系统的减振器参数进行了设计与工艺匹配；其次，基于变密度法对支架进行了拓扑优化，质量减少了19.9%，系统的一阶固有频率由57.09 Hz提高到58.76 Hz。最后，分别进行了惯导减振系统线振动和角振动实验，实验结果表明：优化后惯导减振系统的谐振频率为55 Hz，最大加速度传递率为2.2，-3 dB带宽在30~40 Hz范围内，相位滞后在5.16°~9.17°内，均满足设计要求。说明该惯导减振系统的设计及其支架拓扑优化方法是有效的。
- 无人机 /
- 惯导系统 /
- 减振器 /
- 拓扑优化 /
- 模态分析
Abstract: As one of important components in an inertial navigation system (INS), bracket's dynamic characteristics have a significant influence on INS. Taking the damping system of a certain type unmanned aerial Vehicle (UAV) as an example, the system parameters have been designed and process-matched according to the requirements of dynamic characteristics. Then, the topology optimization design has been carried on the bracket by using the variable density method. After optimization, the mass of the bracket has been reduced 19.9%, and the first order natural frequency of the damping system has been increased from 57.09 Hz to 58.76 Hz. Finally, the line vibration and angular vibration tests have been done on the inertial navigation damping system. The results show that the resonant frequency of the INS damping system optimized is 55 Hz, the maximum acceleration transmissibility is 2.2, -3 dB bandwidth is in the range of 30~40 Hz, and phase lag is 5.16°~9.17°, all of these can meet the design requirements, which represents that the INS damping system design and the bracket topology optimization method are valid.
- unmanned aerial vehicle(UAV) /
- inertial navigation system(INS) /
- vibration absorber /
- topology optimization /
- modal analysis

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