Compaction Performance of Biomimetic Press Roller to Soil

作     者：Jin Tong Qingzhu Zhang Li Guo Yuan Chang Yingjie Guo Fengwu Zhu Donghui Chen Xin Liu 

作者机构：The Key Laboratory of Bionic Engineering (Ministry of Education of China) Jilin University Changchun 130025 China The College of Biological and Agricultural Engineering Jilin University Changchun 130025 China. The School of Engineering Huzhou University Huzhou 313000 China The College of Engineering Technique Jilin Agriculture University Changchun 130118 China 

出 版 物：《Journal of Bionic Engineering》 (仿生工程学报（英文版）)

年 卷 期：2015年第12卷第1期

页      面：152-159页

核心收录：

学科分类：090702[农学-森林培育] 0907[农学-林学] 08[工学] 09[农学] 0802[工学-机械工程] 

基　　金：This work was supported by the National Natural Science Foundation of China (Grant No. 51475204)  the Development Program of Science and Technology of Jilin Province of China (Grant No. 20100711)  the Pro- ject of Graduate Innovation Fund of Jilin University (Grant No. 20121093 and Grant No. 20121096) and the Natioanal “985 Project” in Jilin University 

主　　题：press roller soil compaction biomimetics geometrical structure compaction performance 

摘      要：The compaction characteristics of biomimetic press roller with ridge structures, inspired from the geometrical features of the ventral surface of dung beetle （Copris ochus Motschulsky）, were investigated in this work. Field tests were carried out at three weights （300 N, 500 N and 700 N） and two forward velocities （0.64 m·s^-1 and 1.04 m·s^-1） for biomimetic press roller and conventional press roller. To determine compaction performance, rolling resistance, soil bulk density, soil moisture content, emergence rate and percent change of plant spacing were measured. Roller weight was proved to be the major contributory factor on soil compaction. Biomimetic press roller decreased rolling resistance by 2.98% -17.69% at the velocity of 0.64 m·s^-1, and by 6.59% -18.57% at the velocity of 1.04 m·s^-1 compared with the conventional press roller. Both biomimetic roller and conventional roller can achieve proper bulk density for corn seeds under the experimental conditions. However, compared with the conventional roller, biomimetic roller helped soil conserve more moisture. The highest emergence rate was found when the biomimetic roller worked with a weight of 700 N and velocity of 0.64 m·s^-1. Percent change of plant spacing was lower using the biomimetic press roller compared with that using the conventional roller, because that adjacent ridge structures of the biomi- metic roller can well constrain the flow of soil during compacting process.