Design Optimization in Rotary Tillage Tool System Components by Computer Aided EngineeringAnalysis

Shinde, Gopal U.; Kajale, Shyam R.

doi:10.7763/ijesd.2012.v3.231

“…Then, some geometrical optimizations were proposed to reduce the torque requirement of the rotary tillage blade. For example, a saw tooth angular blade of the rotary cultivator was designed and tested in field [ 8 ]. The straight blade required the least torque, average power, peak power, specific energy, and effective specific energy at 375-500 rpm [ 9 ].…”

Section: Introductionmentioning

confidence: 99%

Biomimetic Rotary Tillage Blade Design for Reduced Torque and Energy Requirement

Yang

¹

,

Jin

²

,

Huang

³

et al. 2021

Applied Bionics and Biomechanics

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A rotary cultivator is a primary cultivating machine in many countries. However, it is always challenged by high operating torque and power requirement. To address this issue, biomimetic rotary tillage blades were designed in this study for reduced torque and energy requirement based on the geometric characteristics (GC) of five fore claws of mole rats, including the contour curves of the five claw tips (GC-1) and the structural characteristics of the multiclaw combination (GC-2). Herein, the optimal blade was selected by considering three factors: (1) the ratio ( r ) of claw width to lateral spacing, (2) the inclined angle ( θ ) of the multiclaw combination, and (3) the rotary speed ( n ) through the soil bin tests. The results showed that the order of influence of factors on torque was n , r , and θ ; the optimal combination of factors with the minimal torque was r = 1.25 , θ = 60 ° , and n = 240 rpm . Furthermore, the torque of the optimal blade (BB-1) was studied by comparing with a conventional (CB) and a reported optimal biomimetic blade (BB-2) in the soil bin at the rotary speed from 160 to 320 rpm. Results showed that BB-1 and BB-2 averagely reduced the torque by 13.99% and 3.74% compared with CB, respectively. The field experiment results also showed the excellent soil-cutting performance of BB-1 whose average torques were largely reduced by 17.00%, 16.88%, and 21.80% compared with CB at different rotary speeds, forward velocities, and tillage depths, respectively. It was found that the geometric structure of the five claws of mole rats could not only enhance the penetrating and sliding cutting performance of the cutting edge of BB-1 but also diminish the soil failure wedge for minimizing soil shear resistance of BB-1. Therefore, the GC of five fore claws of mole rats could inspire the development of efficient tillage or digging tools for reducing soil resistance and energy consumption.

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“…The major aim of using optimization techniques is to evaluate the maximum or minimum value of a function contingent on the criteria established. According to Schneider and Erney (2008) and Shinde and Kajale (2012), due to necessities imposed in the design of the mechanical parts, implementation and use of the designed products require optimization methods. Process Engineering encompasses the utilization of multiple tools and approaches from systems modeling, mathematics, and computer science.…”

Section: Process Optimisationmentioning

confidence: 99%

Process Optimization of Engineering Work Request in an Offshore Environment

2023

EPPM-Journal

0

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The survival of multinational corporations today and in the future is premised on their competitive edge in effectively deploying modern optimization tools in providing utility and services to clients. This research studies the applications of process optimization in the valve procurement life cycle of the engineering unit of an offshore corporation. A forensic audit into the operations of this multi-disciplinary corporation with varied processes targeted at achieving optimization goals reveals cases of inefficiencies in personnel utilization and cost management. These show up in duplication of personnel effort and inefficient cost burdens. Employing the excellent tools within the lean six sigma framework, analysis of the manufacturers and cost combinations were carried out on 9,145 valves procured between January 2017 and January 2020. The results indicate huge cost variations of over 50% of valve mean price of similar valve types and sizes with resulting loss of cost-saving opportunities for the period under consideration. Process inefficiencies were established, such as unnecessary duplication of the process step of contacting the valve original manufacturer for a quote, inadequate rigour in price negotiation, and unnecessary features requested during valve specification. The outcome of this study corrects these inefficiencies, improves opportunities, and makes recommendations such as the need for all manufacturer engagements to be multi-party that involves the end-user, supply chain group, and approvers to eliminate rework and checkmate opportunities for racketeering. These establish cost-effectiveness and resource efficiency in the system.

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“…The use of rotary tillage machines with active working bodies driven by the power take-off mechanism of the tractor makes it possible to perform technological functions at speeds that are 3-8 times higher than the speed of the machine-tractor unit. This significantly reduces the cost of moving the mass of the unit, which does not participate in the performance of useful work and increases the efficiency of using the unit [14,15].…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Improving the work process efficiency of a tillage module for pre-sowing tillage

Aliiev,

Tesliuk,

Zolotovska

et al. 2023

EEJET

0

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The formation of a differentiated structure of the arable horizon during the pre-sowing processing of the grant is a relevant task that can be solved by designing appropriate soil-processing technical means. A scientific hypothesis has been put forward, according to which increasing the efficiency of the process of forming a differentiated structure of the arable horizon can be achieved by improving the design and substantiating the structural and technological parameters of the tillage module for pre-sowing tillage. Numerical simulation was carried out in the Simcenter STAR-CCM+ software package using the Lagrangian multiphase model employing the discrete element method. Calculation of second-order regression equations and statistical processing of the obtained data was carried out in the Wolfram Cloud software package. As a result of the simulation of the improved design of the tillage module, which includes one drum, plowshare, casing, and cleaner, it was found that it performs the operation of separation and redistribution of soil aggregates with almost the same efficiency as the basic design with 2 drums and plowshare. As a result of the simulation of the work process of the improved tillage module, regression equations of the content of the 10–30 mm fraction in the 0–4 cm soil layer and the content of the 0–10 mm fraction in the 4–8 cm soil layer from the research factors were obtained. The chosen factors of influence were a casing outlet clearance, casing inlet clearance angle, cleaner inclination angle, drum rotation frequency, unit movement speed, and processing depth. Solving the problem of multi-criteria optimization, the rational structural and technological parameters of the tillage module for pre-sowing tillage were calculated

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Design Optimization in Rotary Tillage Tool System Components by Computer Aided EngineeringAnalysis

Cited by 16 publications

References 7 publications

Biomimetic Rotary Tillage Blade Design for Reduced Torque and Energy Requirement

Biomimetic Rotary Tillage Blade Design for Reduced Torque and Energy Requirement

Process Optimization of Engineering Work Request in an Offshore Environment

Improving the work process efficiency of a tillage module for pre-sowing tillage

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