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Dynamic response analysis of natural gas boilers under seismic loads
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Journal Article
Dynamic response analysis of natural gas boilers under seismic loads
2025
Overview
This paper establishes a dynamic response analysis model of natural gas boilers composed of shell elements and beam elements. Stress, and deformation under the effects of self-weight, temperature loads, and seismic loads are used as evaluation indicators. The strength of natural gas boilers under two working conditions: hot state with low load, and full load, is analyzed. The results indicate that the boiler has high stiffness in the vertical direction, while the lower part of the rear wall is a relatively weak point in terms of stiffness. This provides a reference for further optimization of the boiler structure. Additionally, it was found that the first natural frequency of the boiler decreased by 36.7% and 38.1% compared to the static and free modes, respectively, after applying thermal loads, indicating a significant reduction in the stiffness of the boiler when heated.
Publisher
IOP Publishing
