The influence of the detecting array on the spectrum signal is studied . a solution is put forward to correct the displacement error caused by width of the light activated element , when the sampling theorem is satisfied 提出了在滿足采樣定理的前提下,采用頻域反卷積的方法來(lái)消除由像元寬度對(duì)光譜峰值定位造成的亞像元誤差。
In this paper , the state of the art of the engineering controlled explosion and the finite element method ( fem ) are reviewed . in order to analyze and simulate the demolishment of frame - structured buildings due to controlled blasting , the method of killing or activating elements , a high level technique in fem , and the special element - solid65 are introduced to the blasting field first in china by the author 本文回顧和總結(jié)了工程控制爆破和有限單元法的發(fā)展歷史及其研究現(xiàn)狀,在國(guó)內(nèi)首次把單元生死法這一有限元高級(jí)處理技術(shù)和ansys軟件中特有的solid65單元引入到爆破拆除工程領(lǐng)域,用其進(jìn)行框架結(jié)構(gòu)樓房爆破拆除的計(jì)算機(jī)模擬,探討了構(gòu)件在完全破壞前的應(yīng)力、應(yīng)變、裂縫生成和塑性鉸形成位置。