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計(jì)及車(chē)架彈性的低速汽車(chē)動(dòng)力學(xué)模型分析
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    摘要:

    以某低速汽車(chē)為例，針對(duì)整車(chē)在40 km/h行駛速度下出現(xiàn)的垂向振動(dòng)問(wèn)題，在將車(chē)身視為剛性體的單質(zhì)點(diǎn)和多質(zhì)點(diǎn)模型的基礎(chǔ)上，建立了該低速汽車(chē)的多質(zhì)點(diǎn)且計(jì)及車(chē)架彈性的1/2整車(chē)動(dòng)力學(xué)模型；并在整車(chē)道路試驗(yàn)及車(chē)架試驗(yàn)?zāi)B(tài)分析的基礎(chǔ)上，運(yùn)用理論分析、仿真模擬相結(jié)合的方法，對(duì)3種模型進(jìn)行了仿真分析和研究。計(jì)算結(jié)果與試驗(yàn)結(jié)果吻合，表明將車(chē)身視為彈性體是有必要的，并且明確了單質(zhì)點(diǎn)剛性車(chē)身和多質(zhì)點(diǎn)彈性車(chē)身模型的適用范圍分別為

    Abstract:

    0～10 Hz和10～20 Hz。The low speed vehicle has been selected as prototype and analysis has been done with the theory of vehicle vibration, because in the condition of good roads and empty loads at the speed of about 40 km/h, this truck vibrated distinctly. Then three different kinds of vehicle vibrating models were established. According to the truck’s road test and modal test, and the theory of vehicle vibration, the simulation of these three models was made, and the results were analyzed. It proved the results of simulation well agreed with the experiment. The frame should be considered as elastic. The frequency for the single particle rigid frame is 0～10 Hz and 10～20 Hz for the multi-particle elastic frame. 

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趙剡水,周孔亢,李苗,陳可.計(jì)及車(chē)架彈性的低速汽車(chē)動(dòng)力學(xué)模型分析[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2008,39(10):15-19.[J]. Transactions of the Chinese Society for Agricultural Machinery,2008,39(10):15-19.

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