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電控液壓動(dòng)力轉(zhuǎn)向系統(tǒng)液壓管路建模與特性
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    摘要:

    用鍵合圖方法建立了電控液壓動(dòng)力轉(zhuǎn)向系統(tǒng)(EHPS)液壓管路的數(shù)學(xué)模型并得到管路的狀態(tài)空間方程。在建模的過程中考慮了液壓管路的動(dòng)態(tài)摩擦阻力，通過實(shí)驗(yàn)，驗(yàn)證了模型的準(zhǔn)確性。應(yīng)用Matlab/Simulink工具，對(duì)管路液阻、液容、液感各參數(shù)對(duì)管路工作特性的影響進(jìn)行了仿真分析，結(jié)果表明，在條件許可范圍內(nèi)，增大液阻和液感，減小液容可以增強(qiáng)管路工作的穩(wěn)定性。

    Abstract:

    The mathematical model of hydraulic of electro-hydraulic power steering system(EHPS) line was established by using bode graph theory and the state space equation was attained. Dynamic fluid friction of the line has been considered when modeling so the simulation results more agreed with reality. A simulation was carried out to analyze how the fluid resistance, induction and capacity impacted the work performance of the hydraulic line. The result is that, increase the fluid resistance and induce or decrease the fluid capacity could all boost up the stability.

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石培吉,施國標(biāo),林逸,趙萬忠.電控液壓動(dòng)力轉(zhuǎn)向系統(tǒng)液壓管路建模與特性[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2008,39(10):174-177.[J]. Transactions of the Chinese Society for Agricultural Machinery,2008,39(10):174-177.

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