沖擊作用下粘性土壤破碎體的分形維數(shù)與影響因

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

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沖擊作用下粘性土壤破碎體的分形維數(shù)與影響因
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                        10.3969/j.issn.1000-1298.[year].3.[sequence]
                    
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Fractal Dimensions of Cohesive Soil under Impact and Its Influencing Factors

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摘要:

給出沖擊破碎分析的兩倍尺度控制約定,研究粘結(jié)態(tài)土壤破碎體生成的影響因素,，建立了土壤破碎體分形維數(shù)與落錘質(zhì)量、沖擊行程,、土壤含水率,、破碎比能之間的關(guān)系,。結(jié)果表明,，土壤破碎體的分形維數(shù)與落錘質(zhì)量及沖擊行程沒有聯(lián)系,，但分形維數(shù)與土壤含水率及破碎比能具有明顯的相關(guān)性,。另外,，通過比較得知土壤在沖擊作用下的破碎體分形維數(shù)遠遠低于植被土樣的分形維數(shù),。

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A scaling definition based on two times scale was provided for soil fragmentation analysis. An experiment was conducted to uncover the relationships among soil fragments fractal dimension and the falling weight, falling height, soil moisture content, and specific fragmentation energy. The result shows that no relation exists among fractal dimension, falling weight and falling height, but obvious correlation appears among soil fractal dimension, moisture content and specific fragmentation energies. A further comparison of fractal dimensions shows that soil under impacting action has a much lower value than that under natural actions.

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孟鳳英,丁啟朔,鹿飛,丁為民,潘根興.沖擊作用下粘性土壤破碎體的分形維數(shù)與影響因[J].農(nóng)業(yè)機械學(xué)報,2009,40(3):108-111. Fractal Dimensions of Cohesive Soil under Impact and Its Influencing Factors[J]. Transactions of the Chinese Society for Agricultural Machinery,2009,40(3):108-111.

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