本研究使用有限元素分析(FEA)及實驗模態分析(EMA)的方法進行空濾結構之振動模態,結構的加速度頻率響應函數,與振動疲勞特性。本文之空氣濾清器模型驗證,單一零件至組合件皆進行驗證,確認組合件的接合條件模型是否等效於實際的空濾結構。針對空氣濾清器進行振動疲勞分析,基於Miner線性累積損傷理論進行結構損傷之評估,判斷其發生位置之損傷壽命,建立振動疲勞分析流程之技術。 研究結果顯示: 實驗與模擬值的預測相當一致性,確認本研究所建立的模擬技術之合理與正確性。此技術可以應用在空濾產品設計驗證的階段,減少試作與測試的次數,有效減少產品設計所需的時間。
In this study, finite element analysis (FEA) and experimental modal analysis (EMA) methods were used to find the vibration mode, the acceleration frequency response function, and the vibration fatigue of the air cleaner housing. The validation step includes the single upper casing ,lower casing, and the assembly casing, in order to find the suitable connecting boundary condition for the air cleaner assembly. The established vibration fatigue analysis of the air cleaner is based on Miner's linear cumulative damage theory to assess its structural damage. The results can be shown that the experimental and simulated values are very consistent, which confirms the feasibility and correctness of the simulation technology established in this study. This technology can be applied to the air cleaner design verification phase, reducing the number of tests and porotypes, and effectively reducing the time required for product design.