quasi-static field 中文意思是什麼
quasi-static field
解釋
準靜態場-
Based on the fepg system of feijian, the solutions of static electric field, quasi - static electric field and time - harmonic field are researched
基於飛箭公司fepg系統平臺，本論文研究了靜電場，準靜電場，時諧場的求解問題。 -
Based on qualitative analysis and comparison of several options for suppressing transverse vibration on deck type steel plate girder of railway bridge, conclusions are made as follows : with static reinforcing, the vibration amplitude can be suppressed to some extent, but quasi - resonance of the bridge can not be avoided, moreover, the construction is inconvenient and costly. with option of two bridge connection, the effectiveness of vibration suppression is clear ( the damping ratio approaches 50 % ) and it is fairly economic and easy, however, the quasi - resonance of the bridge can not be avoided either. with dynamic option ( mtmd option ), the quasi - resonance of the bridge can be effectively avoided ( the damping ratio is up to 51. 38 % as tested in field ), moreover, the construction cost is low, and the construction is simply and convenient
通過對目前抑制鐵路上承式鋼板梁橋橫向振動的幾種方案進行定性的分析和比較，認為：靜力加固方案可以使橋梁振幅有所減小，但不能避免準共振現象的發生，而且工程造價較高，施工也不方便；兩橋連接方案減振效果明顯（減振率近50 % ） ，比較經濟也比較方便，但同樣不能避免準共振現象的發生；動力減振方案（ mtmd抑振方案）可以有效的抑制橋梁的準共振現象（現場試驗中減振率達51 . 83 % ） ，而且工程造價較低，施工簡單、方便。 -
In order to compare with the extreme of dynamic solutions when the mach number approaches zero, i. e. the quasi - static propagation, the corresponding quasi - static problem is also studied asymptotically in the paper. the governing equations of crack - tip field are derived, and numerical solutions are obtained by selections of typical parameter values with combination of boundary conditions of each problem
採用這種率敏感型本構關系，為了與馬赫數趨于零時動態解的極限情況? ?準靜態擴展情況作對比，本文還對相應的準靜態問題進行了漸近分析，推導了裂尖場的控制方程，並選取典型的特徵參數，結合問題的邊界條件進行了數值求解。 -
The quasi - static damage stage under the quasi - static stress field produced by gas from explosion. finally, the general model for blasting damage and fracture is gained. in the thesis, a gas - driven fracture propagation and damage localization at the crack tip model during explosion products are proposed
根據爆炸力學，將巖石的爆破損傷分為兩個階段來研究，第一階段為爆炸應力波作用下的動態損傷階段，第二階段為爆生氣體靜態壓力場作用下的損傷階段，最終得出了巖石在爆破作用下的爆破損傷斷裂全過程演化模型。
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