Modal truncation method for continuum structures based on matrix norm: modal perturbation method
Hou Jun Kang,
Quan Yuan,
Xiaoyang Su
et al.
Abstract:Modal analysis is a widely applied method to study the vibration phenomenon of continuum structures, but there is no clear method to solve the modal truncation problem at present. In order to determine the contribution of different modes to the whole system, a new mode truncation method based on perturbation theory is proposed in this paper. In the process of discretization, perturbation parameters are introduced into the modes, and the modal number in the continuum structure system is confirmed according to t… Show more
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