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论文类型：期刊论文

发表时间：2022-06-30

发表刊物：振动与冲击

所属单位：运载工程与力学学部

期号：22

页面范围：67-71,77

ISSN号：1000-3835

摘要：For generalized eigenvalue problems,a method based on the fast Fourier transform (FFT) was developed.In the proposed method,the dynamical structural response was viewed as a signal containing all information about the vibrational frequencies.Using FFT to the signal,the vibrational frequencies can be obtained.The method is a kind of direct solution method which can compute all eigenvalues without the matrix inversion.A numerical example manifests the correctness of the proposed method.

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