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2.4m跨声速风洞颤振试验流场控制技术研究

Wei RUI,Fan YI,Ning DU,Jian-hua QIN

Shiyan Liuti Lixue/Journal of Experiments in Fluid Mechanics（2012）

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Abstract
颤振试验技术是研究飞行器颤振特性、评估安全飞行包络线的一项重要试验技术.为了满足颤振试验需要的定马赫数阶梯变速压和定总压线性变马赫数的试验要求,结合2.4m跨声速风洞的特点,有针对性地进行了控制策略设计.主要采用运动规律法和智能分段变PI实现变速压智能控制,应用运动函数实现了线性变马赫数智能控制.结果表明:该流场控制技术满足颤振试验的特殊要求,取得了流场调节过程快速、准确、可靠的试验效果.
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Key words
Adjusting dynamical pressure,Adjusting linear Mach number,Flutter test,Law of motion,Motion function,Transonic wind tunnel
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