音圈電機(jī)驅(qū)動(dòng)的柔性定位平臺(tái)設(shè)計(jì)與控制
[Abstract]:A two-degree-of-freedom flexible micro-positioning platform is designed, which is mainly composed of voice coil motor and flexure hinge mechanism. A double parallel four-bar mechanism composed of right-angle flexure hinges is installed symmetrically in order to realize the large stroke and motion decoupling of the platform. The working stroke is more than 2 mm and the positioning accuracy is up to nano-scale. The space supporting mechanism is designed to ensure its bearing capacity. The structure design and bearing capacity of the micro-positioning platform are analyzed. Considering the characteristics of the dynamic behavior of the positioning platform, the BP neural network combination identification method optimized by genetic algorithm is used to identify the system model, which overcomes the shortcomings of the neural network in the dynamic behavior identification of complex systems. Based on the neural network PID compound inverse control method, the micro-positioning platform is controlled, and the identification and control method is verified by experiments. The results show that the neural network identification method optimized by genetic algorithm and the neural network PID compound inverse control method are suitable for the practical application of the flexible micro-positioning platform system driven by the voice coil motor.
【作者單位】: 天津大學(xué)機(jī)構(gòu)理論與裝備設(shè)計(jì)教育部重點(diǎn)實(shí)驗(yàn)室;廣東省精密裝備與制造技術(shù)重點(diǎn)實(shí)驗(yàn)室;
【基金】:國(guó)家自然科學(xué)基金資助項(xiàng)目(51675376,51675371,51675367,51275337) 歐盟2020地平線H2020-MSCA-RISE-2016項(xiàng)目(734174);歐盟第七框架生物醫(yī)療機(jī)器人項(xiàng)目(612641) 歐盟2020地平線和科技部重點(diǎn)研發(fā)項(xiàng)目(S2016G4501,644971) 特種車(chē)輛及其傳動(dòng)系統(tǒng)智能制造國(guó)家重點(diǎn)實(shí)驗(yàn)室開(kāi)放課題項(xiàng)目(GZ2016KF007) 廣東省精密裝備與制造技術(shù)重點(diǎn)實(shí)驗(yàn)室開(kāi)放課題項(xiàng)目(PEM201602)~~
【分類(lèi)號(hào)】:TH122
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