| 土壤—全方位深松机组系统随机振动研究 |
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| 引用本文： | 郭烜,邱立春,李宝筏.土壤—全方位深松机组系统随机振动研究[J].农业工程学报,2001,17(3):62-66. |
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| 作者姓名： | 郭烜 邱立春 李宝筏 |
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| 作者单位： | 1. 内蒙古民族大学,
2. 沈阳农业大学, |
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| 基金项目： | 国家自然科学基金(10071048,1970102)和教育部高等学校骨干教师资助计划资助项目 |
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| 摘 要： | 建立了土壤——全方位深松机非线性系统模型，分析了系统振动减阻的复杂内共振机理、土壤强度分维和负载信号特性，可以通过调整土壤耕作机组固有频率来改善振动减阻性能，以及利用牵引阻力频谱指数来衡量系统振动减阻性能。田间试验数据分析结果与上述结论相符。
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| 关 键 词： | 全方位深松机 非线性切削力 频谱指数 1/f噪声 |
| 文章编号： | 1002-6819(2001)03-0062-05 |
| 收稿时间： | 2000/9/18 0:00:00 |
| 修稿时间： | 2000年9月18日 |
Research on the Random Oscillation of Soil Bulk-Subsoiler System |
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| Guo Xuan,Qiu Lichun and Li Baofa.Research on the Random Oscillation of Soil Bulk-Subsoiler System[J].Transactions of the Chinese Society of Agricultural Engineering,2001,17(3):62-66. |
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| Authors: | Guo Xuan Qiu Lichun and Li Baofa |
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| Abstract: | The complex internal resonance mechanism for resistance-reducing by oscillation, fractal dimension of soil intensity and the characteristics of load signals are analyzed by means of soil bulk-subsoiler nonlinear system model developed by the author. The conclusions, to improve resistance-reducing capability in soil-tilling system by adjusting its natural frequency, and judge it by frequency-spectrum exponential of drag-resistance, are obtained. Meanwhile, these theoretical results are verified with the test data from field experiments. |
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| Keywords: | bulk subsoiler nonlinear cutting force frequency spectrum exponential 1/f noise |
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