航天推进技术研究院主办
DENG Changhua,WANG Jun,WU Dan,et al.Space deformation analysis method for static test[J].Journal of Rocket Propulsion,2020,46(01):96-101.
静力试验空间变形分析方法
- Title:
- Space deformation analysis method for static test
- 分类号:
- V216文献标识码:A 文章编号:1672-9374(2020)01-0096-06
- 摘要:
- 液体火箭发动机机架在静力试验中,通常在关键位置布置多个位移传感器来测量机架在静力试验过程中的位移值,对所测的位移数据进行分析以确定机架是否满足刚度设计要求。由于位移传感器较多,无法直观、快速查找到可能存在的异常测点,同时由于无法可视化使得分析机架整体变形存在一定的困难,因此提出了一种静力试验结构变形的三维可视化分析方法。该方法利用结构的几何位置及测点位移信息,通过空间坐标重构连续再现结构在加载过程中的三维变形过程,形成三维变形动画,并基于Matlab软件平台开发了空间变形分析软件,可直观分析结构整体变形、快速查找位移测量异常点,同时软件分析结果可保存为文档文件和视频文件。该方法对于直观分析机架的整体变形过程,快速判断测点位移数据是否异常具有重要的工程实用价值。
- Abstract:
- In the static test of the frame of liquid rocket engine, lots of displacement sensors are usually arranged at the key positions to measure the displacement of the frame.The displacement data measured are analyzed to determine whether the frame meets the stiffness design requirements.Because of the large number of displacement sensors, it is difficult to find possible abnormal points intuitively and quickly.At the same time, it is difficult to analyze the overall deformation of the frame because of lack of visualization.So a three-dimensional visual deformation analysis technique for static test was proposed.The continuous three-dimensional deformation of the structure in the loading process was reconstructed using the geometric positions of the structure and the displacements of the measuring points.The three-dimensional deformation animation of the structure was obtained.Based on the software platform of matlab, the software of spatial deformation analysis was developed, which is intuitively to analyze the overall deformation of the structure and find the abnormal points.The results of analysis can also be saved as document files and video files.Results show that the developed technique is helpful to judge whether the displacement data of the measuring points are abnormal, and is valuable for intuitively analyzing the overall deformation process of the frame in static test.
参考文献/References:
[1] 穆朋刚, 李斌潮, 杜大华, 等.液体火箭发动机复合材料机架初步设计研究[J].火箭推进, 2017, 43(3):35-41.MU P G, LI B C, DU D H, et al.Preliminary design for composite thrust frame of liquid rocket engine[J].Journal of Rocket Propulsion, 2017,43(3):35-41.
[2] 霍世慧, 袁军社, 徐学军, 等.双推力室机架快速优化设计方法研究[J].火箭推进, 2015, 41(4):55-60.HUO S H, YUAN J S, XU X J, et al.A rapid optimization design method for frame structure of double thrust chambers[J].Journal of Rocket Propulsion, 2015,41(4):55-60.
[3] 李斌潮, 邓长华, 周云端, 等.液体火箭发动机阻尼机架减振特性研究[J].火箭推进, 2013, 39(2):46-51.LI B C, DENG C H, ZHOU Y D, et al.Study on vibration attenuation of damping frame for liquid rocket engine[J].Journal of Rocket Propulsion, 2013,39(2):46-51.
[4] 魏生道.结构静力试验技术[M].北京:宇航出版社, 1988.
[5] 夏峰, 穆家琛.全机静力试验多轮多支柱起落架支持与加载技术[J].科学技术与工程, 2018, 18(30):238-244.
[6] 郝凤琴, 贾令涛, 黄嘉璜.飞机结构静力试验数据与分析数据一致性评估方法[J].结构强度研究, 2015, 1:25-31.
[7] 黄玮, 孙秦, 冯蕴雯.飞机结构静强度试验数据分析软件的设计[J].民用飞机设计与研究, 2003(2):19-22.
[8] 刘亚龙, 王生楠, 刘海峰, 等.基于MSC/PATRAN的飞机结构强度静力试验数据实时跟踪与处理系统开发[J].航空学报, 2007, 28(1):84-89.
[9] 孙百红, 周云端.静力试验位移测量异常原因分析及推算方法研究[J].火箭推进, 2010, 36(5):59-62.SUN B H, ZHOU Y D.Cause analysis and computative method of displacement measurement abnormality in static test[J].Journal of Rocket Propulsion, 2010,36(5):59-62.
[10] 刘捷.风洞试验模型弹性变形视频测量系统设计及实现[D].哈尔滨:哈尔滨工程大学, 2017.
[11] 阮晓东, 李世伦, 诸葛良, 等.用立体视觉测量多自由度机械装置姿态的研究[J].中国机械工程, 2000, 11(5):571-573.
[12] 刘兆惠, 王超, 吕文红, 等.基于非线性动力学分析的车辆运行状态参数数据特征辨识[J].吉林大学学报(工学版), 2018, 48(5):1405-1410.
[13] 刘铁良, 杜冬梅, 章郁泱, 等.基于Matlab_GUI的双泵喷水推进船舶仿真平台设计[J].实验室研究与探索, 2018, 37(11):74-76.
[14] 苏关东, 顾勋, 张鹏, 等.基于Matlab GUI的渗流力学虚拟仿真实验平台开发[J].实验室研究与探索, 2018, 37(6):129-134.
[15] 王锴.基于MATLAB与VeriStand的自适应振动主动控制仿真及LabVIEW界面设计[D].哈尔滨:哈尔滨工程大学, 2016.
相似文献/References:
[1]穆朋刚,李斌潮,杜大华,等.液体火箭发动机复合材料机架初步设计研究[J].火箭推进,2017,43(03):35.
MU Penggang,LI Binchao,DU Dahua,et al.Preliminary design for composite thrust
frame of liquid rocket engine[J].Journal of Rocket Propulsion,2017,43(01):35.
备注/Memo
收稿日期:2018-11-21; 修回日期:2019-06-20基金项目:国家基础加强计划技术项目(2019-JCJQ-JJ-480)作者简介:邓长华(1978—),男,博士,研究员,研究领域为液体火箭发动机力学环境试验技术