某轨姿控管路系统模拟分析及优化  

Simulation Analysis and Optimization of Pipeline System in an Orbit and Attitude Control System

作　　者：贺迪华 罗卫东[1,2] 黄琳森 刘忠 HE Dihua;LUO Weidong;HUANG Linsen;LIU Zhong(School of Mechanical Engineering,Guizhou University,Guiyang 550025,China;Mingde College of Guizhou University,Guiyang 550025,China;Limited Liability Company of Guizhou Space Flight Sun Technology,Zunyi 563000,China)

机构地区：[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

出　　处：《机械》2018年第1期11-17,共7页Machinery

基　　金：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)

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。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.

关 键 词：轨姿控管路系统 四通管路接头 管路模型 仿真分析 

分 类 号：TH138.84[机械工程—机械制造及自动化]