本文選題：數(shù)字圖像相關(guān)　切入點(diǎn)：軸功率測(cè)量　出處：《光學(xué)精密工程》2016年11期 　論文類型：期刊論文

【摘要】：基于工業(yè)攝像技術(shù)提出一種非接觸測(cè)量傳動(dòng)軸動(dòng)態(tài)軸功率的方法。首先設(shè)計(jì)了軸功率測(cè)量系統(tǒng),提出了測(cè)量軸轉(zhuǎn)速和軸轉(zhuǎn)矩的方法。通過(guò)數(shù)字散斑的相關(guān)搜索和亞像素計(jì)算等手段,測(cè)得軸轉(zhuǎn)速和轉(zhuǎn)矩值,最終計(jì)算得出軸功率。為驗(yàn)證本文方法的測(cè)量精度,搭建了車載試驗(yàn)系統(tǒng),并在底盤測(cè)功機(jī)上對(duì)其進(jìn)行了實(shí)際測(cè)量試驗(yàn)。試驗(yàn)結(jié)果表明:提出的軸功率測(cè)量方法得到的結(jié)果與底盤測(cè)功機(jī)測(cè)量結(jié)果變化趨勢(shì)一致,其相對(duì)誤差平均值為9.37%。其中軸轉(zhuǎn)速的測(cè)量范圍可以覆蓋整個(gè)過(guò)程,測(cè)量值波動(dòng)較小,與底盤測(cè)功機(jī)測(cè)量結(jié)果基本一致,其相對(duì)誤差平均值為0.73%,抗噪能力強(qiáng);軸轉(zhuǎn)矩的測(cè)量范圍可覆蓋部分高轉(zhuǎn)矩,測(cè)量值波動(dòng)較大,兩者測(cè)量結(jié)果趨勢(shì)一致,其相對(duì)誤差平均值為15.15%,抗噪能力較弱。本文方法克服了一些傳統(tǒng)測(cè)量方法的不足,為解決軸功率動(dòng)態(tài)測(cè)量提供了一種新思路。
[Abstract]:Based on the industrial camera technology, a non-contact measurement method for the dynamic shaft power of the drive shaft is proposed. Firstly, the shaft power measurement system is designed. The method of measuring shaft speed and torque is put forward. By means of correlation search of digital speckle and calculation of sub-pixel, the axial speed and torque are measured, and the axial power is finally calculated. In order to verify the measuring accuracy of this method, An on-board test system is set up, and a practical measurement test is carried out on the chassis dynamometer. The experimental results show that the results obtained by the proposed method are consistent with the measured results of the chassis dynamometer. The average relative error is 9.37. The measuring range of shaft rotational speed can cover the whole process, and the measured value fluctuates little, which is basically consistent with the measured result of chassis dynamometer. The average relative error is 0.73 and the anti-noise ability is strong. The measuring range of shaft torque can cover part of high torque, and the measured value fluctuates greatly. The trend of the two measurement results is the same, the average relative error is 15.15, and the anti-noise ability is weak. The method in this paper overcomes the shortcomings of some traditional measurement methods. It provides a new way to solve the problem of shaft power dynamic measurement.
【作者單位】： 軍事交通學(xué)院工程實(shí)驗(yàn)中心;海軍航空工程學(xué)院飛行器工程系;中國(guó)人民解放軍94303部隊(duì);
【基金】：國(guó)家863高技術(shù)研究發(fā)展計(jì)劃資助項(xiàng)目(No.2013AA065303) 國(guó)家自然科學(xué)基金重點(diǎn)資助項(xiàng)目(No.91120306) 天津市自然科學(xué)基金資助項(xiàng)目(No.14JCQNJC01600)
【分類號(hào)】：U467.45;TP391.41
，

本文編號(hào)：1635141