Development and Field Evaluation of a Variable-Depth Tillage Tool Based on a Horizontal Pneumatic Sensor Measurement
Journal Title: Journal of Agricultural Machinery - Year 2023, Vol 13, Issue 1
Abstract
Soil compaction can be naturally occurred or can be machinery-induced. Subsoiling is often applied to loosen soil compaction and decrease soil strength to levels that allow for root development and growth. Variable-depth subsoiling which modifies the physical properties of soil only where the tillage is required for crop growth has the potential to reduce labor, costs and fuel, and energy requirements. Since this study aimed to perform subsoiling operations with variable depth, the variable-depth tillage (VDT) tool was developed. A pneumatic multi-nozzles sensor has been used to simultaneously predict the depth of a soil layer in three depths (15, 30, and 45 cm), and send a signal to control the depth of the VDT tool. Evaluation of the VDT tool system was performed by two methods namely static and dynamic tests. In static evaluation, the system response time was measured to reach 95% of the proposed depths. The dynamic evaluation of the tool was accomplished in two steps in the field. The amount of fuel consumption and the travel distance of the tool tine to reach the desired operation depth were measured and compared with the common subsoiler (when the depth control was OFF). The average fuel consumption by using the variable-depth tillage tool decreased by 17.36% compared to the constant depth. Furthermore, the pneumatic sensor tine penetrated into the soil perfectly and sent the control signal to the control unit of the VDT tool in real-time, and the VDT tool loosened the soil at the exact depths sent by the sensor.
Authors and Affiliations
M. Tahmasebi,M. Gohari,A. Sharifi,A. Hedayatipour,
Prioritization of Strategic Agricultural Crops in Alborz Province Using the Fuzzy Delphi Method and The Analytical Hierarchy Process (AHP)
Alborz province with an area of about 5121.7 km2 has about 0.31% of the total area of the country. The total arable area of the province is about 48954 hectares. Water, land and capital are the most important factors for...
Carrot Sorting Based on Shape using Image Processing, Artificial Neural Network, and Support Vector Machine
Introduction Carrot is one of the most important agricultural products used by millions of people all over the world. Quality assessment of agricultural products is one of the most important factors in improving the mark...
Analysis of the Exergy of Combustion the Diesel and Biodiesel Fuel in a DI Diesel Engine
IntroductionIn recent years, the exergy analysis method has been widely used in the design, simulation and performance assessment of various thermal systems. In this regard, this method may be applied to various types of...
Ergonomic Evaluation of Vibrations of a Rototiller with New Blade
Introduction One of the most important problems arising with operation of the conventional rototillers is severe vibration of the machine handle which is transmitted to the userâs hands, arms and shoulders. Long period...
The Effect of Operation and Engine Speed on Chainsaw Vibration
Introduction Tree felling is an important part of forest exploitation. According to the condition of Iranian forests, mechanization in these forests has not been grown as it should be. Therefore, a main part of tree fell...