本研究以軟隔式脈衝發動機支撐筒為例，利用有限元素分析軟體 ANSYS 進行支撐筒之結構應力與挫曲特徵值計算。並使用實驗設計法規劃三水準全因子試驗之實驗設計，進行支撐筒各設計變數的尺寸設計參數規劃，探討支撐筒各設計參數承受外在應力的影響。根據實驗的結果，再應用最小平方法藉由實驗的數據分別建構應力及挫曲特徵值等兩個反應曲面，以結構最大應力值與挫曲特徵值為限制條件，對支撐筒質量進行最小化分析。結果顯示品質特性之預測模型具有精確度。

In this study, a soft-clapboard pulse motor pulse separation device(PSD), using FE analysis software ANSYS, calculation the PSD of the structural stresses and buckling eigenvalues. And the use Design of Experiment(DOE) planning three level full factorial experimental design of the experiment. The size of a planned design parameters of each PSD design variables. Discussion on the design parameters of the PSD to withstand the impact of external stress. According to the results of the experiment, then apply the least squares method(LSM) by experimental data were construction stress and buckling eigenvalues and so two response surface. In the structure of the maximum stress and buckling eigenvalues limitation factor. Quality of the PSD to minimize the analysis. The results show that the prediction model has the quality characteristics of accuracy.

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