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多轉(zhuǎn)軸機(jī)械自適應(yīng)濾波交叉階比跟蹤
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    摘要:

    有多個(gè)獨(dú)立轉(zhuǎn)軸的旋轉(zhuǎn)及往復(fù)運(yùn)動(dòng)機(jī)械在升降速過(guò)程產(chǎn)生的振動(dòng)復(fù)雜,，不同參考轉(zhuǎn)軸的階比在頻率交叉的時(shí)候會(huì)產(chǎn)生拍波現(xiàn)象，使階比成分的分離成為難題。通過(guò)研究周期性負(fù)載機(jī)械系統(tǒng)振動(dòng)信號(hào)的特點(diǎn),，構(gòu)造了包括狀態(tài)方程和觀測(cè)方程的振動(dòng)信號(hào)模型,，采用解耦合自適應(yīng)濾波分離方法提取相交叉的階比成分,?？朔似渌A比跟蹤方法不能分離交叉階比的不足,。

    Abstract:

    Vibration is complicated in run-up and coast-down process of rotating and reciprocating combustion machinery which has multiple independent axles. Orders thatfrequency interact in different axle reference cause beating phenomena which makes order separation difficult. Through studying haracteristic of periodic loading machine system, vibration model including state equation and observation equation was constructed. Order tracking was implemented by decouple adaptive filter and crossing order was separated and extracted. Adaptive filter order tracking method overcomes shortcoming that fail to separate crossing order of other order tracking methods.

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孔慶鵬,劉敬彪,章雪挺,盛慶華.多轉(zhuǎn)軸機(jī)械自適應(yīng)濾波交叉階比跟蹤[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2009,40(1):213-216.[J]. Transactions of the Chinese Society for Agricultural Machinery,2009,40(1):213-216.

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