muffler n. 1.圍巾;頭巾。 2.(無(wú)指)厚手套;拳擊用手套。 3.消聲器,減音器。
reactive adj. 1.反動(dòng)的,倒退的,復(fù)古的。 2.反應(yīng)的;反作用的;反沖的;【電學(xué)】電抗的;【化學(xué)】反應(yīng)性的,活性的。 a reactive current 無(wú)效電流。 reactive power 無(wú)功電力。 reactivity n. adv. -ly ,-ness n.
Acoustic transmission matrix of reactive muffler containing units made of perforated pipe 抗性消聲器中含穿孔管時(shí)的聲傳遞矩陣
With the fe software ansys , the performance of reactive muffler is calculated by the 3 - d fem ( finite element method ) in this thesis . the mathematical model of inner acoustic fe equation is established and the calculation formulas about tl ( transmission loss ) and il ( insertion loss ) of muffler are deduced 本文討論了運(yùn)用ansys分析軟件對(duì)抗性消聲器性能進(jìn)行三維有限元計(jì)算的方法,建立了消聲器內(nèi)部聲學(xué)有限元方程的數(shù)學(xué)模型,推導(dǎo)了消聲器插入損失和傳遞損失的計(jì)算公式。