Improving the operational efficiency of Vaderstad disk openers with optimized geometry and induced vibration

建议的研究重点是提高操作效率的瓦德斯塔德圆盘开松机与优化的磁盘几何形状和适当的诱导振动应用于圆盘开松机。本研究的目的是找出与圆盘形状及其诱发振动有关的主要参数对以下方面的影响：（1）圆盘与土壤之间摩擦力方向的变化，（2）接触表面的弹性变形，以及（3）摩擦系数的变化。成对表面上的法向载荷、接触表面拓扑、振动方向、诱发振动的振幅/频率以及切削速度将首先在仿真环境中建模。通过传统的数值优化方法，最有影响力的因素将被识别和排名。将为假设检验和评价开发实验室规模的设置。实验装置将包括振动切割工具，圆盘，和压实土样，其压实度，质地和含水量可以控制。

The proposed research focuses on improving the operational efficiency of Vaderstad disk openers with optimized disk geometry and properly induced vibration applying on the disk openers. The objective of this study is to find the effect of major parameters related to the disk shape and induced vibration in it on: (1) change of the direction of friction force between the disk and soil, (2) elastic deformation of contact surface, and (3) change of friction coefficient.Factors such as: normal load on the paired surface, contact surface topology, direction of the vibration, amplitude/frequency of the induced vibration, and the cutting velocity will be modeled within a simulation environment first. Via conventional numerical optimization methods, the most influential factors will be identified and ranked. A lab-scale setup will be developed for hypothesis testing and evaluation. The experimental setup would consist of a vibrating cutting tool, a disk, and a compact-soil specimen, whose compactness, texture, and water content can be controlled.