INTELLIGENT AIRFOIL FOR PREVENTING FLOW SEPARATION
用于防止流动分离的智能翼型
基本信息
- 批准号:07555381
- 负责人:
- 金额:$ 2.11万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (A)
- 财政年份:1995
- 资助国家:日本
- 起止时间:1995 至 1997
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
An intelligent airfoil was designed to incorporate sensor, prcessor and actuator for preventing the flow separation from airfoilsurface. The original airfoil was cut in two, and thus the airfoil consists of the leading and trailing parts, which are connected by shape memory alloys (SMA) rods. The airfoil shape was changed by actuating the SMA actuators so that its incidence angle can be decreased for the suppression of the flow separation, once flow separation from the airfoil surface were detected by sensor. Various sensors were tested to detect the flow separation from airfoil surface effectively ; optical fiber sensor to detect the flow at the clearance between the leading and trailing parts of developed airfoil, pressure distribution sensor using pressure sensitive rubber, liquid crystal paint, hot film sensor allay, and piezo-electric crystal. The responses of these sensors to flow separation were tested, but there are problems on the reliability of sensors characteristics. Output signal from sensor is processed for the judgment of flow separation, and then control signal is sent to the actuator once now separation were detected after the judgments. The developed intelligent airfoil was tested in wind tunnel, and it was found to be effective for preventing the flow separation.
为了防止翼型表面的流动分离,设计了一种集传感器、处理器和作动器于一体的智能翼型。原来的翼型被切成两半,因此翼型包括领先的和落后的部分,这是连接的形状记忆合金(SMA)杆。一旦传感器检测到翼型表面的流动分离,通过致动SMA致动器来改变翼型形状,使得其冲角可以减小以抑制流动分离。试验了多种传感器对翼型表面分离流动的有效检测;光纤传感器用于检测翼型前缘和后缘间隙处的流动;压力分布传感器采用压敏橡胶、液晶涂料、热膜传感器和压电晶体。测试了这些传感器对流动分离的响应,但传感器特性的可靠性存在问题。对传感器输出信号进行处理,判断是否存在气流分离,一旦检测到气流分离,则向执行器发送控制信号。所研制的智能翼型在风洞中进行了试验,并发现它是有效的,以防止流动分离。
项目成果
期刊论文数量(9)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Tanaka,K.: "Unsteady Separation and Dynamic Lift Around an Airfoil Undergoing Piching Motion" Proceedings of the ASME Fluid Engineering Division Summer Meeting. SM97・366. 1-8 (1997)
Tanaka, K.:“正在进行俯仰运动的机翼周围的不稳定分离和动态升力”ASME 流体工程部门夏季会议记录 1-8 (1997)。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
UNO,M., NISHI,M., and TSUKAMOTO,H.: "Development of a Pressure Distribution Sensing System for Unsteady Flow Measurement Using Conductive Rubber" Proceedings of the 3rd International Conference on Fluid Dynamic Measurement and Its Applications, Modern Tec
UNO,M.、NISHI,M. 和 Tsukamoto,H.:“利用导电橡胶开发用于非稳态流量测量的压力分布传感系统”第三届流体动态测量及其应用国际会议论文集,Modern Tec
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
Tanaka, K.: "Unsteady Separation and Dynamic Lift Around an Airfoil Undergoing Piching Motion" Proceedings of the ASME Fluid Engineering Division Summer Meeting. SM97・366. 1-8 (1997)
Tanaka, K.:“正在进行俯仰运动的机翼周围的不稳定分离和动态升力”ASME 流体工程部门夏季会议记录 1-8 (1997)。
- DOI:
- 发表时间:
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- 影响因子:0
- 作者:
- 通讯作者:
宇野 美津夫: "圧力分布センシングシステムと変動圧力場計測" ターボ機械. 25・6. 310-319 (1997)
Mitsuo Uno:“压力分布传感系统和脉动压力场测量”涡轮机械25・6。
- DOI:
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- 影响因子:0
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UNO,M., TSUKAMOTO,H.: "Measuremens of Unsteady Pressure Field Using pressure Distribution Sensing System" Turbomachinery. 25-6. 310-319 (1997)
UNO,M.,TSUKAMOTO,H.:“使用压力分布传感系统测量非定常压力场”涡轮机械。
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TSUKAMOTO Hiroshi其他文献
TSUKAMOTO Hiroshi的其他文献
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08045040 - 财政年份:1996
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