Authors

Abstract

To address the high penetration resistance and severe soil adhesion of tobacco planting devices operating in wet, clayey soil, a biomimetic planting device was designed using a Gaussian multi-peak function and characteristic curves derived from multiple bird beaks. The peak parameters, including height, position, and width, were optimized using discrete element method (DEM) simulations and response surface methodology. The resulting biomimetic profile reduced penetration resistance and soil adhesion, thereby improving tobacco transplanting performance. The optimized prototype exhibited a penetration resistance of 18.7 N and an adhered soil mass of 14.98 g, representing reductions of 60.47% and 40.56%, respectively, compared with the conventional prototype.

Abstract in Chinese

为解决烟草栽植器在湿黏土壤中阻力大、粘附严重的问题，本文基于高斯多峰函数融合多种鸟喙特征曲线，研制了一款仿生栽植器。结合离散元 (DEM) 仿真，利用响应面法优化了波峰参数（高度、位置和宽度）。该仿生曲线可以主动引导黏土颗粒发生横向上滑移，较大幅度的缩减前端压缩区。优化后样机穿透阻力为 18.7 N，黏附质量为 14.98 g，相比于传统样机，分别减少了 60.47% 和 40.56%。