某轨姿控管路系统模拟分析及优化
贺迪华1，罗卫东1,2*，黄琳森1，刘忠3
（1.贵州大学 机械工程学院，贵州 贵阳 550025；2.贵州大学明德学院，贵州 贵阳 550025；3.贵州航天朝阳科技有限责任公司，贵州 遵义 563000）
摘要：根据某轨姿控系统中关键组件的固定位置进行管路布置，并通过ANSYS Workbench对管路和管路接头进行了仿真分析，针对分析结果、结合管路布置原则对原管路进行改进。通过与原管路对比发现：改进管路模型的固有频率避开了系统工作频率910 Hz；在随机振动中X方向上的等效应力和位移分别减小了66.62 MPa和0.72878 mm且在Y、Z方向上的等效应力和位移增加幅度较小；四通管路接头使得管路中流量分配更加均匀且降低了将近10%的水击压力，有效地改善了轨姿控系统中管路的布置形式。
关键词：轨姿控管路系统；四通管路接头；管路模型；仿真分析
中图分类号：TH138.8+4 文献标志码：A doi：10.3969/j.issn.1006-0316.2018.01.003
文章编号：1006－0316 (2018) 01－0011－07
Simulation Analysis and Optimization of Pipeline System in an Orbit and
Attitude Control System
HE Dihua1，LUO Weidong1,2，HUANG Linsen1，LIU Zhong3
( 1.School of Mechanical Engineering, Guizhou University, Guiyang 550025, China; 2.Mingde College of Guizhou University, Guiyang 550025, China;
3.Limited Liability Company of Guizhou Space Flight Sun Technology, Zunyi 563000, China )
3.Limited Liability Company of Guizhou Space Flight Sun Technology, Zunyi 563000, China )
Abstract：According to the fixed position of key components in an orbit and attitude control system, using by ANSYS Workbench, the pipeline and pipe joints are analyzed and the original pipeline is enhanced by the following analysis results and the principle of pipeline arrangement. Compared with the original pipeline, this paper finds that the natural frequency of the improved pipeline model avoids the working frequency 910 Hz of the operating system. In the random vibration, the equivalent stress and displacement in the X direction are significantly reduced to 66.62 MPa and 0.72878 mm and the equivalent stress and increment of displacement in the Y and Z directions are small. The flow distribution of the four-way pipe joint is more reasonable and it can reduce the nearly 10% water hammer pressure which can effectively improve the orbit and attitude control system layout of the pipeline.
Key words：the orbit and attitude control system；the four-way pipe joint；pipe model；simulation analysis
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收稿日期：2017－06－09
基金项目：贵州省自主创新项目（KYKZ－001）；贵州省科技支撑计划项目（黔科合支撑[2016]2319）
作者简介：贺迪华（1992－），男，江西吉安人，硕士研究生，主要研究方向为姿轨控动力系统。*通讯作者：罗卫东（1962－），男，贵州习水人，教授，硕士生导师，主要研究方向为姿轨控动力系统、汽车及其零部件设计理论与方法。
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