结果表明，按滚转角对飞机进行反馈控制时，不能使该不稳定模态变为稳定模态。
The result shows that the unstable mode could not be changed into a stable one by using the bank Angle feedback control.
用特征向量转角给出了一种密集模态的判别准则。
A judging criterion of closely spaced modes by eigenvector turning angles is put for ward in this paper.
计算出了由三维地震激发的管系模态、管系位移、转角响应幅值以及地震激发的管系模态响应系数。
The 3d earthquake induced pipeline system vibration modes, the amplitudes of displacement and rotation responds, as well as the modal participation factor were calculated.
计算出了由三维地震激发的管系模态、管系位移、转角响应幅值以及地震激发的管系模态响应系数。
The 3d earthquake induced pipeline system vibration modes, the amplitudes of displacement and rotation responds, as well as the modal participation factor were calculated.
应用推荐