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三維隨機路面通用模型建立與仿
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and Simulation of General 3D Virtual Stochastic Road Model
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    摘要:

    為了給虛擬樣機仿真分析提供復(fù)雜三維路面環(huán)境,，基于單點FFT路面不平度時域模型，建立了三維FFT隨機路面數(shù)學(xué)模型,，并實現(xiàn)了其在Matlab中的仿真,；依據(jù)三角網(wǎng)格法理論，建立了生成三維路面文件的通用模型,，包括節(jié)點的生成和單元生成算法,，并導(dǎo)入Adams形成所需的三維路面仿真環(huán)境。應(yīng)用上述方法生成C級路面,，對所選擇的車輛樣機進行了行駛平順性仿真,，與GB/T 13441—92標(biāo)準(zhǔn)對比分析得到了該車行駛平順舒適性的合理時間。

    Abstract:

    In order to provide the research of virtual prototype a complex 3-D virtual road environment, a 3-D FFT stochastic road model was established based on the single-point FFT model, and then the simulation result was gained by Matlab. What's more, based on the theory of triangle network, a general 3-D virtual road model with the arithmetic of nodes and elements was created. Then a specified 3-D virtual road file was imported into Adams to form the 3-D virtual road. Finally, a C-level virtual road was generated for the riding performance simulation of virtual vehicle. By comparing the simulation result with the GB/T 13441—92, the virtual vehicle's reasonable time under the ride performance requirement was obtained.

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彭佳,何杰,叢穎,李旭宏,陳一鍇.三維隨機路面通用模型建立與仿[J].農(nóng)業(yè)機械學(xué)報,2009,40(3):1-4. and Simulation of General 3D Virtual Stochastic Road Model[J]. Transactions of the Chinese Society for Agricultural Machinery,2009,40(3):1-4.

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