Simulation and modal analysis of optimization design axial-flow fan blades
ZHOU Bo
WANG Hui
ZHANG Ya-nan
Abstract：In view of the reduction of working performance that due to the resonance of blade for axial-flow fans,the analysis of the simulation and the modal is made through the establishment of the finite element model for blades in optimal design by using the computational fluid dynamics (CFD) and the theory of modal analysis,which obtained the curve of flow-static pressure for three type blades under the rated rotor speed,and the blades different natural frequencies with the shapes of vibrating mode,and the reason of the improvement in working performance of the optimized fans is discussed.The result shows the maximal flow rises 5.8％ and the maximal static pressure increases 7.3％.Setting the reverse triangular prisms spiral on the blade surface is considered as the best optimal program and the natural frequency in this kind of design rises 2.3％.
Keywords：axial-flow fanblade optimizationmodal analysis
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 71-75 )