Fiberglass-steel sucker rod zero damping model was established,and the frequency factor design formulation was given.
建立了玻璃鋼-鋼混合抽油桿柱無(wú)阻尼振動(dòng)模型;給出了計(jì)算頻率系數(shù)的計(jì)算公式;分析了二級(jí)玻璃鋼混合桿柱面積比(Y1)、長(zhǎng)度比(Y2)對(duì)桿柱頻率系數(shù)的影響;給出了桿柱組成比例的合理范圍。
Quantitative analysis of relationship between transitory internal friction and frequency during reverse martensitic transformation in Ni_(49.8)Ti_(50.2) alloy;
Ni_(49.8)Ti_(50.2)合金馬氏體逆相變的瞬態(tài)內(nèi)耗與頻率間關(guān)系的定量分析
Influencing analysis of human activities on frequency of red tides(HABs) in Zhejiang Sea Areas;
人類活動(dòng)對(duì)浙江近海赤潮發(fā)生頻率的影響分析
The Gradient Analysis with Frequency Variation in Optical-electrical Characteristic of Liquid Crystal Light Valve;
液晶光閥特殊光電特性中的陡度隨頻率變化的分析
A separable approach based on the SVD of a data matrix is proposed to estimate frequencies and bearings of noise sources by a uniform linear array.
本文提出利用均勻線陣接收的數(shù)據(jù)構(gòu)造一種矩陣進(jìn)行奇異值分解，以對(duì)頻率、方位兩參數(shù)進(jìn)行分離估計(jì)，用頻率譜估計(jì)出聲源頻率，用方位譜估計(jì)出聲源方位角。
By using CAD software, the influence of mass and spring constant on system natural frequencies and mode shapes is discussed respectively.
本文首先導(dǎo)出了該系統(tǒng)頻率和振型的分析表達(dá)式,并利用計(jì)算機(jī)輔助設(shè)計(jì)軟件,分別討論了質(zhì)塊質(zhì)量及彈簧常數(shù)對(duì)系統(tǒng)頻率的影響。