【摘要】：以電磁能量收集裝置作為研究對(duì)象,考慮裝置機(jī)械振動(dòng)部分結(jié)構(gòu)形式的差異,分別建立三參數(shù)和兩參數(shù)電磁能量收集裝置的系統(tǒng)模型。通過(guò)引入無(wú)量化參數(shù),以單頻簡(jiǎn)諧激勵(lì)作為環(huán)境載荷給出兩類(lèi)能量收集裝置的位移響應(yīng)和電流響應(yīng)的解析表達(dá)式。分別考慮電路部分和機(jī)械振動(dòng)部分各主要設(shè)計(jì)參數(shù)進(jìn)行影響因素分析,對(duì)比研究了兩類(lèi)能量收集裝置的機(jī)電耦合性能。為了更直觀比較不同類(lèi)型能量收集裝置的能量轉(zhuǎn)化性能,將輸入到電路外部負(fù)載的平均電功率作為考核指標(biāo)。結(jié)果表明:改變機(jī)械阻尼比和三參數(shù)系統(tǒng)的剛度比,可顯著提升能量收集裝置的機(jī)電耦合性能和能量轉(zhuǎn)化特性。同時(shí),三參數(shù)系統(tǒng)輸入電路外部負(fù)載的平均電功率也大于兩參數(shù)裝置。僅改變電路部分的參數(shù),對(duì)兩類(lèi)能量收集裝置的影響相同;但是,通過(guò)同時(shí)調(diào)整機(jī)械阻尼比和三參數(shù)系統(tǒng)剛度比可增強(qiáng)三參數(shù)能量收集裝置的能量轉(zhuǎn)化效率。
[Abstract]:The system model of three-parameter and two-parameter electromagnetic energy-collecting device is set up by taking the electromagnetic energy-collecting device as the research object and taking into consideration the difference in the structural form of the mechanical vibration part of the device. The analytical expressions of the displacement response and the current response of two kinds of energy-collecting devices are given by introducing the non-quantization parameter and using the single-frequency simple harmonic excitation as the environmental load. The main design parameters of the circuit part and the mechanical vibration part are considered, and the electromechanical coupling performance of the two types of energy-collecting devices is compared. In order to compare the energy conversion performance of different types of energy collection devices more intuitively, the average electric power input to the external load of the circuit is used as the assessment index. The results show that the mechanical damping ratio and the stiffness ratio of the three-parameter system can be changed, and the electromechanical coupling performance and energy conversion characteristics of the energy-collecting device can be obviously improved. At the same time, the average electric power of the external load of the input circuit of the three-parameter system is also larger than the two-parameter device. Only the parameters of the circuit part are changed, the effects on the two types of energy collecting devices are the same, but the energy conversion efficiency of the three-parameter energy collecting device can be enhanced by simultaneously adjusting the mechanical damping ratio and the three-parameter system stiffness ratio.
【作者單位】： 北京空間飛行器總體設(shè)計(jì)部;空間智能機(jī)器人系統(tǒng)技術(shù)與應(yīng)用北京市重點(diǎn)實(shí)驗(yàn)室;
【基金】：國(guó)家自然科學(xué)基金資助項(xiàng)目(51405014)
【分類(lèi)號(hào)】：TH113.1

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