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1、分類號TP113.1學(xué)號14030001ＵＤＣ密級公開工學(xué)碩士學(xué)位論文聲子晶體管路降噪設(shè)計研究碩士生姓名曹曉豐學(xué)科專業(yè)機(jī)械工程研究方向振動與噪聲控制指導(dǎo)教師郁殿龍研究員國防科學(xué)技術(shù)大學(xué)研究生院二〇一六年十月DesignofNoiseReductioninPhononicCrystalPipeCandidate：CaoXiaofengAdvisor：Prof.YuDianlongAdissertationSubmittedinpartialfulfillmentoftherequirementsforthedegreeofMasterofEngineeringinMechanic
2、alEngineeringGraduateSchoolofNationalUniversityofDefenseTechnologyChangsha，Hunan，P.R.ChinaOctober，2016國防科學(xué)技術(shù)大學(xué)研究生院碩士學(xué)位論文目錄摘要...........................................................................................................iABSTRACT....................................................
3、..............................................ii第一章緒論..............................................................................................21.1研究背景及意義..............................................................................................21.2傳統(tǒng)管路降噪研究綜述..........................
4、........................................................21.2.1管路聲學(xué).................................................................................................31.2.2空氣管路降噪現(xiàn)狀.................................................................................41.2.3存在的問題.......................
5、......................................................................61.3聲子晶體管路降噪研究基礎(chǔ)..........................................................................61.3.1聲子晶體基本概念和特征.....................................................................61.3.2聲子晶體帶隙機(jī)理................................
6、.................................................71.3.3聲子晶體管路降噪基本原理.................................................................81.3.4聲子晶體管路研究現(xiàn)狀.......................................................................101.3.5存在的問題.............................................................
7、..............................101.4管路系統(tǒng)聲傳播特性主要計算方法............................................................101.4.1傳遞矩陣法...........................................................................................101.4.2有限元法........................
