重構(gòu)理論下采煤機(jī)牽引速度對(duì)滾筒載荷影響研究
發(fā)布時(shí)間:2018-07-04 15:59
本文選題:采煤機(jī) + 滾筒三向力; 參考:《機(jī)械強(qiáng)度》2017年03期
【摘要】:為了研究實(shí)際工況下,牽引速度對(duì)采煤機(jī)滾筒工作載荷的影響,采用Tikhonov正則化方法,構(gòu)建截齒載荷重構(gòu)模型,并推演出牽引速度與截齒載荷關(guān)系,建立滾筒與牽引部相互耦合的動(dòng)力學(xué)系統(tǒng)模型,運(yùn)用數(shù)值仿真的方法對(duì)模型求解,并對(duì)結(jié)果運(yùn)用數(shù)理統(tǒng)計(jì)方法得出不同牽引速度下采煤機(jī)滾筒三向力的均值及標(biāo)準(zhǔn)差,最后進(jìn)行實(shí)驗(yàn)驗(yàn)證,結(jié)果表明仿真數(shù)據(jù)與實(shí)驗(yàn)數(shù)據(jù)的均值和標(biāo)準(zhǔn)差誤差范圍小于5%,驗(yàn)證了理論模型的正確性。
[Abstract]:In order to study the influence of traction speed on the working load of shearer drum under actual working conditions, a reconstruction model of gear cutting load was constructed by Tikhonov regularization method, and the relationship between traction speed and gear cutting load was deduced. The dynamic system model of the coupling between the drum and the traction part is established, and the numerical simulation method is used to solve the model. The mean value and standard deviation of the three-way force of the shearer drum under different traction speeds are obtained by using the mathematical statistics method. Finally, the experimental results show that the error range of the mean value and standard deviation between the simulation data and the experimental data is less than 5, which verifies the correctness of the theoretical model.
【作者單位】: 遼寧工程技術(shù)大學(xué)機(jī)械工程學(xué)院;煤炭工業(yè)協(xié)會(huì)高端綜采成套裝備動(dòng)力學(xué)測(cè)試與大數(shù)據(jù)分析中心;
【基金】:國(guó)家能源研發(fā)(實(shí)驗(yàn))中心重大項(xiàng)目(2010_215) 國(guó)家青年科學(xué)基金項(xiàng)目(51504121)資助~~
【分類號(hào)】:TD421.6
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