Abstract
This paper analyzed natural vibration frequencies and vibration modes of suspend-dome structure with finite element method. Firstly, to get the corresponding vibration mode of each frequency of the structure, understand the distribution of directional stiffness in the structure, and realize the basic natural vibration characteristics, this paper analyzed the natural vibration characteristics of suspend-dome structure. And then, this paper analyzed such four parameters as rise, roofing mass, sectional stiffness of the rods, and prestress in the cables. Through comparison of the four parameters, we can get the similarities and differences among their frequencies and vibration modes, and whether or not the mass and the stiffness are harmonious, and draw some valuable conclusions for structural design.
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