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基于ABAQUS的測力車輪有限元建模與試驗
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國家自然科學(xué)基金項目(51675005)和安徽農(nóng)業(yè)大學(xué)研究生創(chuàng)新基金項目(2020ysj-76)


Finite Element Modeling and Testing for Force-measuring Wheel Based on ABAQUS
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    摘要:

    輪胎力信息是研究車輛動力學(xué)控制系統(tǒng),、車輛可靠性等的基礎(chǔ),,對輪胎力測試最直接有效手段是測力車輪傳感器(簡稱測力車輪)。當(dāng)前對測力車輪的研究主要集中于彈性體部件,,考慮到輪胎對車輛運動特性的顯著影響,,本文對包括彈性體和橡膠胎體的整個測力車輪進(jìn)行有限元建模和試驗研究。首先基于測力車輪典型結(jié)構(gòu),,明確輪胎胎體建模方法,、各部件間接觸問題的處理方法,,制作測力車輪樣機并建立樣機(195/65R15)的ABAQUS有限元模型。然后基于輪胎剛度機進(jìn)行測力車輪樣機的垂直工況,、側(cè)向工況和縱向工況的穩(wěn)態(tài)加載臺架試驗,。最后進(jìn)行這3個工況下的測力車輪有限元仿真分析。試驗與仿真結(jié)果對比分析表明:3種工況下各測點應(yīng)變最大相對誤差絕對值分別為4.86%,、3.92%和3.15%,,說明本研究確定的建模方法可行,模型能夠準(zhǔn)確反映穩(wěn)態(tài)工況下的車輪受力情況。

    Abstract:

    Tire force information is the basis of research on vehicle dynamics control system and vehicle reliability, and the most effective means for tire force testing is force-measuring wheel sensor (i.e. force-measuring wheel). At present, the research on force-measuring wheel mainly focused on elastomer components, and in view of the significant influence of tire on the motion characteristics of vehicle, the whole force-measuring wheel, including elastomer and rubber tire body was modeled and tested. Firstly, the structure of force-measuring wheel was introduced in detail. Besides, the method of modeling tire carcass and the method of dealing with contact problems between components were clarified, and a finite element model of the force-measuring wheel prototype (meridian tire 195/65R15) was established. Then, based on the tire stiffness machine, the bench test of vertical working condition, lateral working condition and longitudinal working condition of force-measuring wheel prototype was carried out. Finally, the finite element simulation analysis of force-measuring wheel under three working conditions were executed. The comparative analysis of test and simulation results showed that the maximum absolute values of the relative error of strain values of each measuring point under the three working condition were 4.86%, 3.92% and 3.15%, which indicated that the modeling method determined was feasible, and the model can accurately reflect the wheel force under steadystate conditions. The rubber carcass and elastomer as a whole were studied, which laid a foundation for the decoupling optimization of the multi-dimensional force structure of force-measuring wheel. 

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劉莉,陶亮,孫小明,張小龍,錢鵬.基于ABAQUS的測力車輪有限元建模與試驗[J].農(nóng)業(yè)機械學(xué)報,2020,51(5):387-394. LIU Li, TAO Liang, SUN Xiaoming, ZHANG Xiaolong, QIAN Peng. Finite Element Modeling and Testing for Force-measuring Wheel Based on ABAQUS[J]. Transactions of the Chinese Society for Agricultural Machinery,2020,51(5):387-394.

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  • 收稿日期:2019-11-14
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  • 在線發(fā)布日期: 2020-05-10
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