Analysis and Optimization of Vibration Causes in Integrated Stove
This article takes the shaking of a certain integrated stove head as an example to analyze the specific reasons for the vibration.During normal testing,the integrated stove showed significant shaking of the stove head.However,the cause of the vibration could not be identified by strengthening the structural components and adding connections.The vibration of this model is significantly abnormal when the fan speed is between 800 r/min and 1 000 r/min,indicating the possibility of resonance.After finite element simulation,modal analysis was conducted on the integrated stove model,and it was found that the ninth natural frequency of the integrated stove was 18.74 Hz,which is similar to the vibration frequency corresponding to the fan speed of(13.33～16.67)Hz,indicating the possibility of resonance.By modifying the structure of the wind cabinet,enhancing the stiffness of the shell,and adding connectors,the ninth order frequency of the structure was raised to 24.15 Hz,effectively avoiding resonance frequencies and solving the problem of furnace head shaking.By using simulation methods to perform modal analysis on the structure,the cause of furnace head vibration can be directly identified and the direction for subsequent modifications can be pointed out.This method reduces the number of experiments and has good promotion value.
modal analysisintegrated stovefurnace head shakingstructural optimization
万方数据
维普
