本文關(guān)鍵詞： 微傳動(dòng)平臺(tái) 定位精度 誤差權(quán)重系數(shù) 幾何誤差 誤差補(bǔ)償　出處：《農(nóng)業(yè)機(jī)械學(xué)報(bào)》2015年05期 　論文類型：期刊論文

【摘要】：為了提高微傳動(dòng)平臺(tái)的定位精度,對(duì)幾何誤差進(jìn)行了分析。利用微分關(guān)系構(gòu)造微傳動(dòng)平臺(tái)輸出位姿誤差與各結(jié)構(gòu)參數(shù)幾何誤差之間的映射關(guān)系,引入誤差權(quán)重系數(shù),分析了各結(jié)構(gòu)參數(shù)對(duì)微傳動(dòng)平臺(tái)定位精度的影響,建立了微傳動(dòng)平臺(tái)的精度補(bǔ)償模型。利用Matlab對(duì)微傳動(dòng)平臺(tái)的定位精度進(jìn)行計(jì)算仿真,搭建實(shí)驗(yàn)平臺(tái)進(jìn)行實(shí)驗(yàn)測(cè)試,仿真和實(shí)驗(yàn)結(jié)果表明,基于權(quán)重系數(shù)法建立的誤差模型合理,并且通過建立的精度補(bǔ)償模型,微動(dòng)平臺(tái)的定位誤差從補(bǔ)償前的20%~30%下降到了補(bǔ)償后的10%~15%,使微傳動(dòng)平臺(tái)的定位精度獲得了較大提高。
[Abstract]:In order to improve the positioning accuracy of the micro transmission platform, the geometric error is analyzed, and the mapping relationship between the output pose error of the micro transmission platform and the geometric error of the structural parameters is constructed by using the differential relation. The influence of structural parameters on positioning accuracy of micro-transmission platform is analyzed by introducing error weight coefficient. The precision compensation model of the micro transmission platform is established. The positioning accuracy of the micro transmission platform is calculated and simulated by Matlab. The experimental platform is set up for experimental test. The simulation and experimental results show that. The error model based on the weight coefficient method is reasonable, and through the precision compensation model, the positioning error of the fretting platform decreases from 20% before compensation to 10% or 15% after compensation. The positioning accuracy of the micro transmission platform has been greatly improved.
【作者單位】： 重慶大學(xué)機(jī)械傳動(dòng)國家重點(diǎn)實(shí)驗(yàn)室;上海市空間飛行器機(jī)構(gòu)重點(diǎn)實(shí)驗(yàn)室;
【基金】：國家自然科學(xué)基金資助項(xiàng)目(51275537) 上海市空間飛行器機(jī)構(gòu)重點(diǎn)實(shí)驗(yàn)室開放課題資助項(xiàng)目(SM2014D201) 重慶大學(xué)機(jī)械傳動(dòng)國家重點(diǎn)實(shí)驗(yàn)室科研業(yè)務(wù)費(fèi)資助項(xiàng)目(SKLMT-ZZKT-2012MS05)
【分類號(hào)】：TH139;TH703
【正文快照】： 引言柔性微傳動(dòng)平臺(tái)定位技術(shù)是納米操作、納米測(cè)量以及納米制造的關(guān)鍵技術(shù)之一[1-2],常用在精密工程領(lǐng)域。目前可應(yīng)用的高精度驅(qū)動(dòng)器大致有壓電陶瓷驅(qū)動(dòng)器、電致伸縮陶瓷和音圈電機(jī)等[3],其中壓電陶瓷驅(qū)動(dòng)器(PZT)具有高分辨率、高剛度及低能耗、無噪聲等優(yōu)點(diǎn)[4-5]。柔性鉸鏈通

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