航空学报 > 2013, Vol. 34 Issue (2): 197-207   doi: 10.7527/S1000-6893.2013.0023

2m超声速风洞结构设计与研究

虞择斌, 刘政崇, 陈振华, 张世洪, 陈万华   

  1. 中国空气动力研究与发展中心 空气动力学国家重点实验室, 四川 绵阳 621000
  • 收稿日期:2012-02-07 修回日期:2012-05-14 出版日期:2013-02-25 发布日期:2012-07-03
  • 通讯作者: 虞择斌 E-mail:yhl9998@sina.com
  • 作者简介:虞择斌,男,硕士,高级工程师。主要研究方向:风洞结构设计。Tel:0816-2464942,E-mail:yhl9998@sina.com;刘政崇,男,中专,高级工程师。主要研究方向:风洞设计。Tel:0816-2464815,E-mail:lzcpb1997@yahoo.com;陈振华,男,博士,研究员,硕士生导师。主要研究方向:风洞设计。Tel:0816-2464009,E-mail:czh200240@yahoo.com

Structure Design and Research of 2 m Supersonic Wind Tunnel

YU Zebin, LIU Zhengchong, CHEN Zhenhua, ZHANG Shihong, CHEN Wanhua   

  1. State Key Laboratory of Aerodynamics, China Aerodynamics Research and Development Center, Mianyang 621000, China
  • Received:2012-02-07 Revised:2012-05-14 Online:2013-02-25 Published:2012-07-03
  • Contact: 10.7527/S1000-6893.2013.0023 E-mail:yhl9998@sina.com

摘要:

2 m超声速风洞是一座下吹-引射式暂冲型超声速风洞,采用全钢结构。针对该风洞具有结构尺寸大、运行工况多、流场品质要求高、试验段和模型更换快捷以及采用全挠性喷管实现宽马赫数范围调节等特点进行了风洞总体和主要部段结构设计与研究。在风洞设计中利用试验方法以及丰富的风洞设计经验对洞体结构设计中的重点、难点问题进行了研究,广泛使用有限元分析方法进行理论计算,采用新颖的刚性烧结金属丝网材料进行消声降噪处理,并用挠性喷管和试验段一体化设计技术排除了挠性喷管与试验段间阶差对流场品质的影响,运用气垫运输技术使试验段和模型更换快捷、稳定。通过水压试验、振动检测、风洞静调和流场校测等方法验证风洞的结构设计是合理的,设计中新材料、新技术的应用是成功的。

关键词: 超声速风洞, 结构设计, 水压试验, 挠性喷管静调, 流校

Abstract:

The 2 m supersonic wind tunnel is an intermittent blowdown-ejector wind tunnel with a full-steel structure. The general structure and main sections are designed and studied based on the characteristics of this wind tunnel, such as large structural size, multiform operational states, high flow quality, quick test section and model conversion, wide Mach number adjustment range for full flexible nozzles, etc. In the course of design, key components and difficult sections are researched by means of testing and solved with our design experiences. Finite element analysis is widely employed for theoretic calculation. A novel multi-layer sinter-wire mesh is used to reduce the strength of current noises, and flexible nozzles and test sections are incorporated in the design to eliminate step influence and improve flow quality, aero-caster movement technology is adopted to convert test sections and models quickly and steadily. Design rationality is proved by structural parameter static state debug,hydraulic testing, vibration inspection and flow quality detection. Applications of new materials and technology are found to be successful.

Key words: supersonic wind tunnel, structural design, hydraulic test, flexible nozzle static state debug, calibration test

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