The modal matrix expansion of the cross power spectra of the multi-measurement acceleration response in the multi-DOF structure is derived in detail.

详细推导了多自由度结构多测点加速度响应的互功率谱模态矩阵展开式。

youdao

This paper gives a theoretical formulation for the extraction of mode shape by fitting the cross power spectra of the outputs and a cantilever beam is analysed.

该文提出了一种用互功率谱求振型的方法，并对此理论进行了详细推导，以一悬臂梁为例对该方法进行了试验验证。

youdao

In this paper, the method of cross power spectrum is used to simulate rotor bars breaking faults of induction motor, including continuous breaking and intermittent breaking of rotor bars.

利用互功率谱方法对异步电动机发生多根导条断裂故障进行了模拟仿真，包括连续断条和间歇断条故障。

youdao

As the clock ticked over into injury time a last assault from the Wallabies saw them come within inches of scoring several times before Giteau sent the ball wide for replacement centre Cross to power over.

BBC: Scotland 9-8 Australia

Of these, 31 are provincial and 7 engage in cross-province power transmission.

FORBES: Cracking China's Power Sector

When Ressano Garcia opened, Aggreko was thought to have been the first private firm to supply power cross-border to utilities in southern Africa.

BBC: Glasgow-based Aggreko strikes new Africa deal