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高超声速风洞WDPR支撑尖锥模型应用可行性分析

胡正红 彭苗娇 冀洋锋 柳汀 林麒 王晓光

胡正红, 彭苗娇, 冀洋锋, 等 . 高超声速风洞WDPR支撑尖锥模型应用可行性分析[J]. 北京航空航天大学学报, 2017, 43(11): 2293-2301. doi: 10.13700/j.bh.1001-5965.2016.0855
引用本文: 胡正红, 彭苗娇, 冀洋锋, 等 . 高超声速风洞WDPR支撑尖锥模型应用可行性分析[J]. 北京航空航天大学学报, 2017, 43(11): 2293-2301. doi: 10.13700/j.bh.1001-5965.2016.0855
HU Zhenghong, PENG Miaojiao, JI Yangfeng, et al. Feasibility analysis of WDPR support cone model application in hypersonic wind tunnel[J]. Journal of Beijing University of Aeronautics and Astronautics, 2017, 43(11): 2293-2301. doi: 10.13700/j.bh.1001-5965.2016.0855(in Chinese)
Citation: HU Zhenghong, PENG Miaojiao, JI Yangfeng, et al. Feasibility analysis of WDPR support cone model application in hypersonic wind tunnel[J]. Journal of Beijing University of Aeronautics and Astronautics, 2017, 43(11): 2293-2301. doi: 10.13700/j.bh.1001-5965.2016.0855(in Chinese)

高超声速风洞WDPR支撑尖锥模型应用可行性分析

doi: 10.13700/j.bh.1001-5965.2016.0855
基金项目: 

国家自然科学基金 11472234

国家自然科学基金 11702232

详细信息
    作者简介:

    胡正红  女, 硕士研究生。主要研究方向:风洞试验技术、绳牵引并联机器人技术

    王晓光  男, 博士, 助理教授, 硕士生导师。主要研究方向:风洞试验技术、绳牵引并联机器人技术

    通讯作者:

    王晓光, E-mail:xgwang@xmu.edu.cn

  • 中图分类号: V221+.3;TB553

Feasibility analysis of WDPR support cone model application in hypersonic wind tunnel

Funds: 

National Natural Science Foundation of China 11472234

National Natural Science Foundation of China 11702232

More Information
  • 摘要:

    绳牵引并联机构(WDPR)能够有效调整飞行器模型的位姿,为扩展风洞试验能力提供了一种新型支撑手段,具有很大的应用潜力。本文将对其在高超声速风洞中应用所涉及的稳定性与气动干扰问题进行研究。以10°尖锥标椎模型为例,设计了8绳牵引的并联支撑系统,可以通过调整绳长控制模型的位置和姿态。模拟了气动载荷作用下支撑系统的稳定性,优化牵引绳直径。基于构建的三维模型,借助CFD软件进行气动计算,包括马赫数为7.8时,不同迎角下绳牵引并联支撑锥体模型的气动力系数,通过与无绳支撑结果以及文献试验数据进行比较,表明在小迎角情况下,绳系支撑引起的气动干扰相对误差较小,但会随迎角的增大而增加。此外,分别对弯刀支撑和绳牵引并联支撑进行了模态分析,对比了2种支撑的固有频率。结果显示绳系支撑固有频率较高,系统刚度较大。本文的理论研究成果可为绳牵引并联支撑技术在高超声速风洞中的应用提供一定的技术支持。

     

  • 图 1  模型在风洞中安装示意图

    1—驻室前壁;2—试验段入口;3—驻室左壁;4—驻室上壁;5—滑轮;6—相机;7—内室上壁;8—驻室后壁;9—锥体模型;10—驻室右壁;11—观察窗;12—内室右壁;13—内室下壁;14—驻室下壁;15—滚轴丝杠和电机。

    Figure 1.  Schematic of model installation in wind tunnel

    图 2  原理样机

    P—模型质心;Pi—绳与模型的连接点,i=1~8;Bi—绳与固定滑轮的连接点;Pxyz—本体坐标系;OXYZ—惯性参考坐标系。

    Figure 2.  Principle prototype

    图 3  绳牵引并联支撑锥体模型

    Figure 3.  Wire-driven parallel support cone model

    图 4  模型质心位移的变化

    Figure 4.  Change of displacement of model's center of mass

    图 5  绳牵引并联支撑系统流场网格分布

    Figure 5.  Grid distribution of flow field with wire-driven parallel support system

    图 6  法向力系数

    Figure 6.  Normal force coefficient

    图 7  轴向力系数

    Figure 7.  Axial force coefficients

    图 8  摩阻系数

    Figure 8.  Coefficients of friction resistance

    图 9  摩阻比值

    Figure 9.  Ratio of friction to drag

    图 10  迎角为0°时压力分布

    Figure 10.  Pressure distribution at 0° angle of attack

    图 11  有绳支撑下迎角为2°和8°时压力分布

    Figure 11.  Pressure distribution with support at 2° and 8° angles of attack

    图 12  单绳周围压力分布

    Figure 12.  Pressure distribution around single rope

    图 13  迎角为0°绳系周围压力分布

    Figure 13.  Pressure distribution around ropes at 0° angle of attack

    图 14  硬式支撑模型

    Figure 14.  Hard support model

    表  1  绳连接点PiBi的坐标

    Table  1.   Coordinates of wire attachment points Pi and Bi

    Pi点坐标/mmBi点坐标/mm
    P1=(-438.2,241.7,241.7)B1=(-1 509,1 145,1 145)
    P2=(400.7,194.8,112.2)B2=(1 940,955,955)
    P3=(400.7,194.8,-112.2)B3=(1 940,955,-955)
    P4=(-438.2,241.7,-241.7)B4=(-1 509,1 145,-1 145)
    P5=(-438.2,-2 41.7,-241.7)B5=(-1 509,-1 145,-1 145)
    P6=(-438.2,-241.7,241.7)B6=(-1 509,-1 145,1 145)
    P7=(400.7,-194.8,112.2)B7=(1 940,-955,955)
    P8=(400.7,-194.8,-112.2)B8=(1 940,-955,-955)
    下载: 导出CSV

    表  2  不同直径钢丝绳受力

    Table  2.   Force on steel wire ropes with different diameters

    绳直径/mm绳拉力最大值/kN绳能承受的拉力极限值/kN
    42.798
    52.8012
    62.8018
    下载: 导出CSV

    表  3  法向力系数计算结果与试验结果对比

    Table  3.   Comparison of normal force coefficient between calculation results and test results

    迎角/(°)法向力系数
    无绳支撑有绳支撑试验[16]
    0000
    20.075 70.073 60.067 5
    40.151 60.146 30.140 6
    60.227 50.220 30.212 9
    80.305 40.295 40.283 8
    下载: 导出CSV

    表  4  绳牵引并联支撑系统模态分析

    Table  4.   Wire-driven parallel support system modal analysis

    阶数频率/Hz振型
    一阶7.26偏航
    二阶15.43俯仰
    三阶22.14滚转
    四阶34.93X轴向
    五阶39.90Z轴向
    六阶40.07Y轴向
    下载: 导出CSV

    表  5  硬式支撑模态分析

    Table  5.   Hard support modal analysis

    阶数频率/Hz振型
    一阶1.25俯仰
    二阶1.49偏航
    三阶1.78偏航
    四阶5.59俯仰/轴向(x)
    五阶26.34滚转
    六阶92.92竖向(y)
    下载: 导出CSV
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出版历程
  • 收稿日期:  2016-11-04
  • 录用日期:  2017-02-08
  • 刊出日期:  2017-11-20

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