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ID:31975565
大小:1.42 MB
页数:41页
时间:2019-01-29
《树木内部应力波传播速度模型研究》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、ABSTRACT3.Thecamphortree,acaciatreeandChinaberrydiscwithdefectsuchasdecayandcrackweredetected,andtheexperimentresultshowedthatduetotheexistenceofhollowness,decayandcrack,thefittedcurvebetweenthedirectionangleandstresswavetransmissionvelocitydidnotpresenttherelationofqu
2、adraticfunction.Inthedefectiveposition,thecurvewouldsinkinwardlywithasignificantdifferencefromtheexperimentonhealthytrees.Therefore,thestresswavetransmissionvelocitymodelproposedinthispaperhadagoodguidingsignificancetothedetectionofinternaldefectoftrees.Keywords:Trees;
3、StressWave;VelocityModel;Non-destructiveTestingIII万方数据目录目录摘要......................................................................................................................................................IABSTRACT..................................................
4、.....................................................................................II1绪论..................................................................................................................................................11.1研究背景.........................
5、......................................................................................................11.2研究的目的和意义...............................................................................................................21.2.1研究目的..................................
6、..................................................................................21.2.2研究意义....................................................................................................................31.3基于应力波的木材无损检测技术的国内外研究现状...................................
7、...................31.3.1国外研究现状............................................................................................................31.3.2国内研究现状............................................................................................................51.4木材应力波无
8、损检测设备研究现状...................................................................................61.4.1仪器发展现状.............
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