基于多體接觸碰撞的松軟地面車輪沉陷仿真

doi:10.3969/j.issn.1000-1298.[year].[issue].[sequence]

首頁 > 過刊瀏覽>2009年第40卷第10期 >33-38. DOI:10.3969/j.issn.1000-1298.[year].[issue].[sequence]

基于多體接觸碰撞的松軟地面車輪沉陷仿真
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                        10.3969/j.issn.1000-1298.[year].10.[sequence]
                    
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of Wheel Sinkage on Soft Terrain Based on Multibody Contact Problem

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提出了一種大規(guī)模多體系統(tǒng)接觸碰撞理論與車輛地面力學理論相結合的仿真方法,，并基于多體動力學仿真平臺開發(fā)了車輪土壤相互作用仿真模塊,。基于該方法建立的土壤動力學模型和車輪土壤接觸碰撞模型，進行了車輪沉陷的仿真,。根據記錄，在普通配置臺式計算機上模擬土槽系統(tǒng)30 s的運動，僅需20 min。在相同實驗條件下,，仿真結果與土槽實驗結果趨勢一致，仿真曲線與土槽實驗曲線吻合良好,。由此表明該仿真算法能夠滿足越野行駛仿真的需要,。

Abstract:

A new approach to realize the wheel-soil interaction simulation was proposed which applied the large-scale multibody contact problem and vehicle terramechanics theory. Using this method, we developed a wheel-soil simulation module in self-developed multibody dynamics simulation platform. Based on modeling of soil and wheel-soil contact, the computational implementation for wheel sinkage was depicted in detail. According to records, it needs only 20 min to simulate the motion of wheel-soil testbed system about 30?s on a microcomputer with general configuration. Under similar conditions simulation and experimental results have good consistency. This indicates that the simulation algorithm could meet the requirement of off-road driving simulation.

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左艷蕊,宗志堅,劉忠途,程源,樊世超.基于多體接觸碰撞的松軟地面車輪沉陷仿真[J].農業(yè)機械學報,2009,40(10):33-38. of Wheel Sinkage on Soft Terrain Based on Multibody Contact Problem[J]. Transactions of the Chinese Society for Agricultural Machinery,2009,40(10):33-38.

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