| 大膨胀比喷管试验台的六分量天平研究 |
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| 引用本文： | 姚裕,吴洪涛.大膨胀比喷管试验台的六分量天平研究[J].南京理工大学学报(自然科学版),2011(4). |
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| 作者姓名： | 姚裕 吴洪涛 |
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| 作者单位： | 南京航空航天大学航空宇航学院;南京航空航天大学机电学院; |
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| 基金项目： | 国家自然科学基金(50876042); 南京航空航天大学青年科技创新基金(56V1029); 江苏省数字化制造重点实验室基金(HGDML-0905) |
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| 摘 要： | 为了研究非对称大膨胀比喷管试验台的喷管气动性能,准确地测量矢量喷管的六分量气动力,该文依据喷管试验台的测试要求,提出一种新颖的基于T型梁S弯变形的框架式整体六分量天平。通过分析天平的各元微应变与安装结构,设计并制造出天平,依据静态标定获得天平的工作系数矩阵。最后,用有限元方法验证设计结果。研究表明:天平的结构简单,精、准度高,满足试验台的六分量力测量要求。
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| 关 键 词： | 大膨胀比 喷管试验台 六分量天平 静态标定 有限元方法 |
Six-component Force Balance for Big Expansion Ratio Nozzle Test-bed |
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| YAO Yu,WU Hong-tao.Six-component Force Balance for Big Expansion Ratio Nozzle Test-bed[J].Journal of Nanjing University of Science and Technology(Nature Science),2011(4). |
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| Authors: | YAO Yu WU Hong-tao |
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| Institution: | YAO Yu1,WU Hong-tao2(1.College of Aerospace Engineering,2.College of Mechanical and Electronic Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China) |
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| Abstract: | To study the dynamic performance of a big expansion ratio nozzle with asymmetric structure,and measure the six-component dynamic force accurately for the thrust vectoring,a novel integrated six-component force balance is introduced in the paper based on S-bend deformation of T-beams.By analyzing the measuring microstrain and the assembled structure of the test-bed,the balance is designed and fabricated.The static calibration is employed to obtain the matrix of working coefficients for the balance and the fi... |
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| Keywords: | big expansion ratios nozzle test-beds six-component balances static calibration finite element method |
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