• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2018, Vol. 54 ›› Issue (2): 184-190.doi: 10.3901/JME.2018.02.184

• 可再生能源与热物理 • 上一篇    下一篇

可变面积的非对称姿态模拟射流喷管设计与仿真

陈鹏飞1, 吴锋1, 徐全勇2, 彭晋1, 徐倩楠1   

  1. 1. 中国航发四川燃气涡轮研究院航空发动机高空模拟技术重点实验室 绵阳 621703;
    2. 清华大学航天航空学院 北京 100084
  • 收稿日期:2016-04-12 修回日期:2017-05-09 出版日期:2018-01-20 发布日期:2018-01-20
  • 通讯作者: 吴锋(通信作者),男,1982年出生,高级工程师。主要从事高空模拟试验技术、先进整机试验技术和复杂系统仿真技术方面的研究工作。E-mail:wufeng_my@qq.com
  • 作者简介:陈鹏飞,男,1986年出生,工程师。主要从事高空模拟试验技术、先进整机试验及试验预研技术方面的研究工作。E-mail:zhongguoren.cpf@qq.com
  • 基金资助:
    国家自然科学基金资助项目(51506108)。

Design and Simulation of Variable Area Jet Nozzle with Asymmetrical Attitude Simulation

CHEN Pengfei1, WU Feng1, XU Quanyong2, PENG Jin1, XU Qiannan1   

  1. 1. Aviation Key Laboratory of Science and Technology on Aero-engine Altitude Simulation, AECC Sichuan Gas Turbine Establishment, Mianyang 621703;
    2. School of Aerospace engineering, Tsinghua University, Beijing 100084
  • Received:2016-04-12 Revised:2017-05-09 Online:2018-01-20 Published:2018-01-20

摘要: 可变面积和可变姿态的自由射流喷管因其能够实现试车台能力的最大化、降低成本和快速调节等优点,将成为地面风洞试验研究的新趋势。为解决在大迎角范围内满足不同推进系统地面试验所需的气流能力和试验舱物理空间之间的矛盾,同时使其具备真实高度、马赫数和姿态的模拟能力,提出了一种基于非对称机械臂的姿态模拟射流喷管方案。根据试验舱结构与现代战机飞行包线,确定自由射流喷管的设计指标与初步流场布置;建立2-RRR机械臂机构数学模型,运用Deanvit-Hartenberg(D-H)法开展了机构计算与求解研究;通过仿真分析了射流喷管的初步功能实现情况,并验证了该设计方案的可行性,为射流喷管的研究与发展奠定了基础。

关键词: 非对称, 风洞, 机械臂, 可变面积, 喷管, 姿态模拟, 自由射流

Abstract: Free jet nozzle with variable area and variable attitude, for their ability to maximize test cell capacity, reduce costs and adjust quickly, etc., had become the new trend of ground wind tunnel test research. To resolve the contradiction between the airflow capacity requirements that to meet the different propulsion systems ground test required in the wide angle of attack range and the physical space requirements of test chamber, moreover, it had the ability to simulate true altitude, Mach number and attitude, an attitude simulation jet nozzle based on asymmetry robotic manipulator was proposed. According to the test chamber structure and modern aircraft flight envelope, the free jet nozzle design specifications and initial flow field layout were identified. A 2-RRR robotic manipulator mechanism mathematical model was built, and the computation via Deanvit-Hartenberg (D-H)method and solving research of mechanism was carried out. Finally, through the simulation, the jet nozzle functional fulfillment was analyzed, and the design scheme feasibility was validated for the jet nozzle investigate and development established foundation.

Key words: asymmetry, attitude simulation, free jet, nozzle, robotic manipulator, variable area, wind tunnel

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