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harmonic motion 【物理學】諧運動。

Assuming the blades conduct a planar simple harmonic motion , the flows in vibrating cascades in the case of different oscillating amplitudes , different reduced frequencies and different torsional centers are computed respectively for two blade profiles . according to comparing flow calculations at different oscillation modes , the influence of the oscillation parameters “ selection on aeroelastic performances of cascades is analyzed 假定葉片做平面簡諧運動,針對兩種葉型分別計算了不同振動幅度、折合頻率及扭心位置時的振動葉柵流場,根據各種振型下流場計算結果的比較,分析了振動參數選取對葉柵氣動彈性性能的影響。

harmonic oscillator

The wing is modeled structurally by vibrational modes , which are used as amplitude of motion by a finite element analysis . conservative full - potential equation and three dimensional unsteady euler equation are used to compute the unsteady transonic flows around airfoil and wings under simple harmonic motion 以給定機翼模態分布下機翼上各點的模態值作為運動幅值,以三維非定常全位勢方程和三維非定常euler方程為控制方程,求解三維機翼簡諧運動下的非定常氣動力。

Assuming the blades conduct a planar simple harmonic motion , the flows in vibrating cascades in the case of different oscillating amplitudes , different reduced frequencies and different torsional centers are computed respectively for two blade profiles . according to comparing flow calculations at different oscillation modes , the influence of the oscillation parameters “ selection on aeroelastic performances of cascades is analyzed 假定葉片做平面簡諧運動,針對兩種葉型分別計算了不同振動幅度、折合頻率及扭心位置時的振動葉柵流場,根據各種振型下流場計算結果的比較,分析了振動參數選取對葉柵氣動彈性性能的影響。

The numerical results show that the time domain response of the laminated plates induced by the in - line force of non - steady component oscillating flow is similar to harmonic motion with certain ribbon which is formed by period motion 計算結果表明,零均值流量脈動流順流向作用力誘發反對稱角鋪設層合板的時域響應近似于具有一定帶寬的諧波運動,而這一帶寬又是由一定周期運動形成的。

Damped harmonic motion 阻尼諧動

Angular harmonic motion 角諧運動

Theoretical study on dynamic filtration with the membrane in simple harmonic motion 簡諧運動膜分離的理論研究

Cosine acceleration or simple harmonic motion 余弦加速度運動