front of wave test 中文意思是什麼
front of wave test
解釋
波前沖擊試驗-
The lightning impulse breakdown and steep - front impulse breakdown test of silicone rubber are also performed, which give a reference for other so lid materials. the result of this research also will give a reference to revises the standard of steep - front wave impulse voltage test
為了配合本課題的研究還做了硅橡膠材料的雷電沖擊耐受強度和陡波沖擊耐受強度試驗，這兩個試驗對了解其它固體材料的雷電沖擊系數和伏秒特性也具有參考價值。 -
In order to verify the effectiveness of steep - front impulse voltage test in finding the internal faults of composite insulator, some insulators with faults, including conductive channel, semi - conductive channels, airy channel, partial little air bubble that occur separately at different place, are modeled. steep - front wave impulse voltage test is made for these faulty insulator and normal insulator
為了檢驗陡波試驗對于發現合成絕緣子內部故障的有效性，分別模擬了絕緣子內部不同部位有導電性、半導電性通道，小氣泡，金屬雜質，長氣泡以及芯棒與護套間不粘連故障的絕緣子，並從三維靜電場計算和用不同陡度的陡波試驗兩個方面進行了驗證。 -
In this paper, high - order accurate weighted essentially non - oscillatory ( weno ) schemes are investigated and their applications in hyperbolic conservation laws are discussed. based on this, a new weno difference scheme which based on dispersion - relation - preserving relation is developed, and representative test cases with this scheme for computational aeroacoustics ( caa ) problems has been implemented and compared in order to test capability of wave capturing ; in addition, weno schemes generally do not converge at high order in the presence of contact discontinuity of euler equations, so a conservative front tracking technique coupling weno schemes and level set method to simulate the translating density profile is presented here, and numerical simulation with this technique for representative test case has been implemented and results show the desired accuracy
本文研究了高階精度加權基本無振蕩（ weno ）格式及其在雙曲守恆律方程中的應用，在此基礎上作了兩個方面的工作：一是針對高頻聲波問題構造出一種基於保色散關系（ drp ）的weno有限差分格式，並對計算氣動聲學（ caa ）問題的代表性算例進行了大量數值實驗，比較了該格式捕捉波數的能力；另外，針對高階weno格式在處理euler方程的接觸間斷時精度有所降低的問題，研究了利用界面追蹤技術levelset方法和高階激波捕捉weno格式相結合的一種守恆追蹤方法，並且給出有代表性的密度滑移面問題的算例，得到一致高階精度的數值模擬結果。 -
The final result shows that steep - front wave impulse voltage test plays a very effective part in finding serious faults of the insulator, however, tiny faults are not easy to be found through this method
計算和試驗結果相一致，結果表明陡波試驗在檢驗合成絕緣子嚴重內絕緣故障方面很有效，但對較輕的故障就不太有效。 -
The relation between form errors of the flat mirror under test and wave - front aberrations, i. e., influence function, can be obtained through sampling the pupil plane
摘要通過在光瞳面上取點的方法，找出被檢平面鏡面形誤差與檢驗系統波像差之間的相互關系，即影響函數。
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