A novel technique is proposed based on Fourier modal expansion and least-square fitting to reconstruct a two-dimensional wavefront from phase difference resulting from large shear.
提出一种基于模式展开和最小二乘拟合的算法，可以从大剪切量差分波前快捷地重建原始的二维波前。
Based on the theory of modal superposition and power series expansion, a modal superposition method for the sensitivity analysis of FRF is proposed in this paper.
基于模态展开和幂级数展开原理，提出了一种频响函数灵敏度分析的模态展开法。
The vibration responses of the need nodes were estimated according to the response of the finite nodes by the modal expansion technique.
采用模态扩展技术实现由有限几个点的振动响应获取所需点上的响应。
Finally, an explanation was given about the application of the expansion series of residual admittance in reduction of degrees of freedom in modal synthesis.
说明了剩余导纳展开式在模态综合自由度减缩中的应用。
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。
The nonlinear model of the composite beam is established and the modal expansion solution is obtained.
建立梁的非线性弯曲方程，并求出模态展开解。
The classical displacement expansion theorem and the modal aggregation principle are discussed at the beginning of the paper.
首先回顾经典的位移展开定理和模态叠加原理。
The classical displacement expansion theorem and the modal aggregation principle are discussed at the beginning of the paper.
首先回顾经典的位移展开定理和模态叠加原理。
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