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自由活塞式內(nèi)燃發(fā)電機啟動過程分析
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國家自然科學(xué)基金資助項目(50976014)


Analysis of Starting Process in Free-piston Engine-generator
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    摘要:

    針對自由活塞式內(nèi)燃發(fā)電機啟動過程中的匹配問題,，建立了內(nèi)燃發(fā)電機系統(tǒng)啟動過程的數(shù)學(xué)模型,。通過對活塞運動位移及速度的簡化，推導(dǎo)出直線電機驅(qū)動力簡化表達式。研究結(jié)果表明：增加內(nèi)燃發(fā)電機的活塞運動組件質(zhì)量，可以減小直線電機的驅(qū)動力，但是活塞組件達到的最大速度減小，不利于高速啟動；減小內(nèi)燃機摩擦阻力系數(shù)以及有效壓縮比也可以降低直線電機的驅(qū)動力,。利用該簡化公式分析了一臺樣機的啟動過程，獲得了該樣機所需要的最小驅(qū)動力,。

    Abstract:

    In order to solve the matching problem, the mathematic model of starting process of free-piston engine-generator was analyzed. By simplifying the displacement and velocity of the piston, simplified expressions of driving force of linear motor was deduced. The result showed that the larger piston mass could advisably increase inertial force and decrease the minimum starting force, but reduce the maximum speed and slower the starting process. Less frictional coefficient and effective compression ratio could also reduce the starting force. With the simplified formula, the starting process of a prototype free-piston engine-generator was analyzed and the minimum starting force was achieved.

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劉福水,趙術(shù)偉,王道靜,姜一通.自由活塞式內(nèi)燃發(fā)電機啟動過程分析[J].農(nóng)業(yè)機械學(xué)報,2013,44(7):6-11. Liu Fushui, Zhao Shuwei, Wang Daojing, Jiang Yitong. Analysis of Starting Process in Free-piston Engine-generator[J]. Transactions of the Chinese Society for Agricultural Machinery,2013,44(7):6-11.

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  • 在線發(fā)布日期: 2013-06-20
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