The response velocity of transducer was measured by the laser Doppler vibrometer.The loading and unloading process were analyzed and modeled in three segments. 據此對超聲加卸載過程分段，進行頻譜分析和非穩態特性建模，並研究了相關的試驗方法。
The performance of the combined procedure is evaluated by analyzing the three test cases of the flow past a cylinder, for their transient and steady-state flow behaviors. 最後，通過對一個黏性流體圓柱體繞流問題的瞬態和穩態特性分析，給出了組合解法性能的評價。
