基于土壤坚实度的仿形弹性镇压辊镇压力实时测量方法

doi:10.13229/j.cnki.jdxbgxb20170351

摘要/Abstract

摘要： 针对镇压作业过程中镇压力实时监测困难且测量不准确的问题,提出了一种基于土壤坚实度的仿形弹性镇压辊镇压力实时测量方法。该方法通过在不同土壤干基含水率(13.9%d.b.,21.2%d.b.和27.8%d.b.)条件下进行镇压辊镇压试验及静态压板试验,分别建立土壤坚实度与镇压辊偏心量、土壤坚实度与静态压强之间的数学模型,利用土壤坚实度的等价关系,建立仿形弹性镇压辊偏心量与镇压力之间的数学模型。本文数学模型可以实现对镇压力的准确量化和实时测量,为镇压作业时对镇压辊的调整提供了技术支撑。

关键词: 农业工程, 镇压辊, 仿形, 土壤坚实度, 镇压力, 实时测量

Abstract: In order to solve the problem that the soil compaction pressure is difficult to monitor in real-time, a real-time pressure measurement of profiling elastic press roller was introduced based on soil cone index. In this method, the real-time values of pressure were acquired through the measurement of the eccentricity of profiling elastic press. The clay soils with three moisture contents, 13.9%d.b., 21.2%d.b. and 27.8%d.b., were used in the experiment. From the experimental results, the relationship between eccentricity of the profiling elastic press and the soil solidity, and that between the static pressure and the soil solidity, were established. With equivalent relationship of the soil cone index, the data curve was fitted and the model equation was established between the eccentricity and pressure in the top layer of soil with depth of 0mm-100mm. The model equation can get accurate quantification and real-time measurement of the pressure to provide technical support for the adjustment of the profiling elastic press roller during operation.

Key words: agriculture engineering, elastic press roller, profile, soil cone index, compaction pressure, real-time measurement

中图分类号:

S223

贾洪雷, 王万鹏, 陈志, 庄健, 王文君, 刘慧力. 基于土壤坚实度的仿形弹性镇压辊镇压力实时测量方法[J]. 吉林大学学报(工学版), 2018, 48(4): 1169-1175.

JIA Hong-lei, WANG Wan-peng, CHEN Zhi, ZHUANG Jian, WANG Wen-jun, LIU Hui-li. Real-time pressure measurement of profiling elastic press roller based on soil cone index[J]. 吉林大学学报(工学版), 2018, 48(4): 1169-1175.

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