quasi-circular 中文意思是什麼
quasi-circular
解釋
準圓形-
Experimental investigation on the energy absorption characteristic of braided composite circular tubes subjected to quasi - static axial compression
編織復合材料圓管準靜態軸向壓縮吸能特性的試驗研究 -
Abstract : a previously proposed approximate quasi - static theoretical method is employed herein to examine the deformation and perforation of a simply - supported circular plate struck by a flat - faced projectile at normal incidence. based on the principle of virtual work, static load - displacement relationships are first obtained and then used to predict the energy - absorbing capacity of the plate subjected to relatively low speed impact. it is shown that good agreement is obtained between the theoretical predictions and the available experimental data, provided that adiabatic shear plugging failure does not occur, but the influence of strain rate sensitivity is taken into account
文摘:採用準靜態近似理論方法分析簡支圓板在平頭彈丸正撞下的變形和穿透.首先基於虛功原理得到了靜態荷載位移關系，並將其用於預測低速沖擊下圓板的能量吸收能力.當考慮了材料的應變率敏感性，並且不發生絕熱剪切沖塞破壞的前提下，理論預測和實驗結果吻合良好 -
After the nonlinear and absorption effect is taken into account in the applications where high power ultrasonic is involved, the first and second harmonic components of the sound field of stepped circular plate is analyzed, based on the kzk equation and quasi - linear condition
考慮到大功率超聲應用中的非線性和吸收作用，本文從kzk方程和準線性條件出發，對于工作在共振頻率下的這種階梯圓盤，推導了它的一階和二階諧波聲場計算方法。
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