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介绍了采用可考虑变叶片间相角的变形激盘法对某型风扇叶片的颤振性能进行的研究结果。计算表明,转子在大的来流攻角或高的相对马赫数下,叶片有可能发生失速颤振,在零度攻角附近可能出现堵塞颤振。叶片气动弹性稳定较差的叶片主要是那些叶片间相角为正的叶片。该计算结果为某型风扇叶片的设计提供了有益的参考。
This paper introduces the research results of the flutter performance of a fan blade by using the deformable disk method which can consider the phase angle between the variable blades. Calculations show that the rotor may have flutter at stalls at large attack angles or high relative Mach numbers, and clogging flutter may occur near a zero angle of attack. Vanes with poorer aeroelastic stability are mainly those with positive phase angle between leaves. The calculation results provide a useful reference for the design of some fan blades.