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多橋驅(qū)動車輛越障時(shí)軸荷動態(tài)分配研究
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華南農(nóng)業(yè)大學(xué)南方農(nóng)業(yè)機(jī)械與裝備關(guān)鍵技術(shù)省部共建教育部重點(diǎn)實(shí)驗(yàn)室開放基金資助項(xiàng)目（KF200707）


Calculation of Dynamic Axle-load of 4-axle Driven Vehicle Crossing Obstacle
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    摘要:

    軸荷動態(tài)分配規(guī)律是影響多橋驅(qū)動非路面車輛可靠性的主要因素，為了獲得越障時(shí)的軸荷，建立了四橋驅(qū)動越障時(shí)軸荷動態(tài)分配動力學(xué)模型。對某型四橋驅(qū)動山地車輛進(jìn)行了計(jì)算與分析，獲得附著系數(shù)φ為0.1～1.0越障時(shí)各橋軸荷分配量，結(jié)果表明，該車輛越障時(shí)軸荷動態(tài)分配值差異較大，第4橋軸荷總是呈現(xiàn)較大值，導(dǎo)致各橋的疲勞壽命不一致。

    Abstract:

    A 4 axle driven hill terrain vehicle was made in China. To improve the vehicle fatigue strength and reliability, the dynamics models of 4 axle-load were founded when it crossing obstacle. According to the dynamics models, the axleload distributions of the vehicle crossing obstacle were calculated when offroad adhesion coefficient φ is 0.1~1.0. The results showed its axleload distributions had more different among 4-axle when the vehicle crossing obstacle, the distribution law was analyzed. The design of 4-axle different strength and improving the 4-axle strength was put forward. The paper provided a mathematic model for reliability design and optimizing distribution of torque when the hill-ground crossing obstacle.

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魏道高,區(qū)穎剛,楊丹彤,劉慶庭.多橋驅(qū)動車輛越障時(shí)軸荷動態(tài)分配研究[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2011,42(2):39-42,53. Wei Daogao, Ou Yinggang, Yang Dantong, Liu Qingting. Calculation of Dynamic Axle-load of 4-axle Driven Vehicle Crossing Obstacle[J]. Transactions of the Chinese Society for Agricultural Machinery,2011,42(2):39-42,53.

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