使用解析方式推导得到机翼的临界颤振速度、颤振频率对于设计变量的灵敏度表达式。
Then the gradients of flutter speed and frequency of wing with respect to the design variables were deduced with analytical method.
NACA0012和PROF叶栅在不同折合频率下气动参数随时间的变化表明，折合频率是影响叶栅颤振的重要因素。
The variation of aerodynamic parameters of cascade NACA0012 and PROF under different reduced frequency shows that the reduced frequency is an important factor that influences the flutter.
建立固有振动频率和颤振阻尼对结构参数的敏度公式，设计两种不同优化问题的数学模型。
The sensitivity formulas about natural frequency and flutter damp to structure parameters were discussed, and the math models about optimization design were established.
这种频率锁定规律可以清楚地解释失速颤振的各种非线性现象。
The characteristic of "lock-in" can be used to explain all kinds of nonlinear phenomenon of the stall flutter.
探讨了由于振动频率、颤振自由度、广义质量等参数的变化对机翼—外挂干扰颤振特性影响的一些特点。
This paper probes the features of the effect on the external stores jam flutter characteristics due to the variation of parameters of vibration frequency, flutter freedom and generalized mass.
并通过实际测量主振系统的振动频率和幅值大小，研究了诸因素对再生颤振的影响。
Measuring the amplitudes of vibrational system. we explore all kinds of factors that influence regeneration chatter.
本文用特征值法研完了叶片频率失调及盘片耦合对叶栅颤振边界的影响。
The eigenvalue method is presented for determining the effects of blade mistuning and blade-disk on cascade flutter boundaries in incompressible flow.
计算机模拟结果表明，时变进给切削比单调增大进给切削更能有效地抑制颤振。在一定的条件下，时变进给量变化幅度及变化频率越大，抑振效果越好。
The results of computer simulation demonstrates that it is more efficient to suppress chatter by time-varying feed rate cutting than by increasing feed rate cutting only.
计算机模拟结果表明，时变进给切削比单调增大进给切削更能有效地抑制颤振。在一定的条件下，时变进给量变化幅度及变化频率越大，抑振效果越好。
The results of computer simulation demonstrates that it is more efficient to suppress chatter by time-varying feed rate cutting than by increasing feed rate cutting only.
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