本文之研究主旨在利用二衝台機器產生衝擊波，再將衝擊波形描繪成衝擊響應頻譜(Shock Response Spectrum)。利用衝擊響應頻譜作衝擊測試現在已經普遍的被利用在3C產品及高精密的儀器設備，如手機、衛星等。為了能提高衝擊的加速度，特別在一衝台衝擊模組上再加上一個質量塊做為二衝台衝擊模組，讓兩個衝擊模組撞擊作加速度的二次放大，以達到測試規範要求的高G值。
在理論研究方面，利用解析解求得撞擊的位移及撞擊的時間，並和實驗及模擬結果進行比較驗證。在實驗方面，利用自由落體式衝擊試驗機對兩個衝擊模組做不同高度的衝擊試驗，探討兩者撞擊後的加速度及撞擊時間；在數值模擬方面，利用商用有限元素軟體LS-DYNA進行兩個衝擊模組在與實驗同樣條件下的的撞擊模擬，取其加速度及撞擊時間與實驗結果比較，兩者的誤差皆在10%以內，因此驗證數值模擬方法在衝擊的環境負載下有一定的準確性。
最後進一步對PSLV(Polar Satellite Launch Vehicle)及Minotaur_IV火箭所提供之衝擊環境進行衝擊訊號重建，比較重建之訊號與測試訊號的差異，並與振動機產生之訊號比較，比較兩者的差異。另外將二衝台衝擊模組產生之衝擊波與預設之標準比較，確認產生之衝擊波符合預設之標準。期望透過本文之驗證使得自由落體式衝擊試驗機能產生符合不同火箭載具之衝擊環境，使衛星衝擊測試更接近真實。

The purpose of this work is to study two-stroke drop machine was used to produce specific shock waves. Shock response spectrum (SRS) was also computed and performed from these various shock waves in this study. It is commonly adopt to test for 3C products and high technology machine, such as cell phone and satellite, etc. Besides, the first-stroke and second-stroke punch modules are performed and utilized to enhance the G peak value in order to increase the peak of impact acceleration.
As for theoretical background, the impacted deformation and duration which are obtained by analytic solution. For the experimental results, the impact acceleration and impact duration was measured during the two-stroke drop test on the different initial height. The FEM commercial software - LS-DYNA are utilized to analyze the impact acceleration and impact duration of two-stroke drop mechanisms at the same condition in our study. According to these verified results, the accuracy and adequacy are also confirmed by utilizing LS-DYNA to check the dynamic impact behavior. Comparison of the experimental and simulated results is also examined and the deviation error between experimental and simulated results is near 10% in this work. The reconstruction of the shock environment is also operated and performed clearly for PSLV and Minotaur_IV rockets by using the two-stroke drop mechanism. Besides, the shaker and two-stroke drop mechanisms were also to examine and compare the difference for shock impulse used in clear. All of the experimental and simulated results are reported in this work.

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