Reliability-based design for soil tillage machines

Al-kheer, A. Abo; Hami, Abdelkhalak El; Kharmanda, Ghias; Mouazen, Abdul Mounem

doi:10.1016/j.jterra.2010.06.001

Cited by 42 publications

(14 citation statements)

References 13 publications

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“…Similar data were obtained by foreign researchers [10][11][12][13][14][15][16]. These works establish the work tool parameters to provide better soil pulverization at minimal draught resistance of the work tools [11]; they also study energy consumption by different crop production technologies and method for tractor draught class selection according to the tillage technology [12], develop an approach to justification of the design of tillage machines to provide their reliability [13], study the effect of work tool type, tillage depth and velocity on productivity of tillage machines on clay soils and necessitate their alignment [14], investigate the impact of tillage depth and velocity on draught resistance when working with different types of work tools [15,16].…”

Section: Introductionsupporting

confidence: 89%

Import Substitution Technology and Machinery as the Basis for Eliminating Food Dependence of Russia

Mazitov¹,

Sharafiev²,

Rakhimov³

et al. 2018

International Scientific and Practical Conference "AgroSMART - Smart Solutions for Agriculture" (AgroSMART 2018)

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Annotation-The crop capacity in different soil and climatic zones depends on implemented technologies of tillage and sowing, crop rotation and type of work tools of the machinery complex. In every zone, main and additional tilling should be made with different work tool types and to different depth corresponding to the zone conditions. The tillage should also provide conditions for plant growth and development, as well as accumulation and rational usage of accumulated moisture during the whole vegetation period. The work demonstrates that tillage by foreign machinery not tailored to Russian conditions as compared to locally produced machines withers the soil away, reduces crop capacity and increases the base costs. In this connection, the team of researchers has elaborated a universal technology for soil treatment and types of work tools for machines to put it into life. Having said that, the type and dimensions of farms dictates the degree of universalization of newly created machines, so they should have replaceable working elements or interchangeable modules. The methods for determining the metal consumption for machines of different type, their draught resistance and performance of equipment were developed; the calculations are also presented. The study yields dependencies that allow establishing adequate velocities of equipment and operating width of tilling and sowing machines that ensure maximum performance of equipment with tractors having different draught class. The parameters of machines are used by the engineers of LLC Chelyabinsk Compressor Plant, LLC Varnaagromash and Yaroslavovich Production Company for designing and putting into production a complex of tillage and sowing machinery for tractors of draught class 1,4; 3; 5 and 6-7. The developed complex of machines performs all components of tillage technologies for specific working conditions and corresponds to functional specifications of agricultural machinery, environment protection, ergonomics and energy saving. Thus, the developed import-substitution technology and complex of machines enable increased crop capacity and reduced base cost of cultivated crops, which is the basis for liquidation of food dependence of Russia.

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Section: Introductionsupporting

confidence: 89%

Import Substitution Technology and Machinery as the Basis for Eliminating Food Dependence of Russia

Mazitov¹,

Sharafiev²,

Rakhimov³

et al. 2018

International Scientific and Practical Conference "AgroSMART - Smart Solutions for Agriculture" (AgroSMART 2018)

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“…In real deep drawing process, the process parameters and material parameters inevitably show variations due to their uncertain characters [33]. In this work, the material parameters in Voce law, and the friction coefficient are taken as uncertain variables.…”

Section: Uncertainties In Deep Drawingmentioning

confidence: 99%

Uncertainty analysis of deep drawing using surrogate model based probabilistic method

Huang

Radi

Hami

2016

Int J Adv Manuf Technol

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Deep drawing is an important manufacturing process in industry. In order to obtain high-quality products produced by deep drawing, the set of design variables used in forming operation is designed through deterministic optimization. However, in real forming process, the design variables show variability and randomness which will affect the product quality. These uncertainties are an inherent characteristic of nature and cannot be avoided. This paper focuses on uncertainty analysis of deep drawing with the consideration of uncertainties in material parameters and friction. An uncertainty analysis approach which combines the finite element method (FEM) simulation, surrogate modeling, and Monte Carlo simulation (MCS) is presented in this work. The constructed surrogate models are validated and compared by cross validation and error measures. Then Monte Carlos Simulation is conducted by the use of the constructed surrogate model. The surrogate model based probabilistic method used in this paper is an approach with high-efficiency and sufficient accuracy for uncertainty analysis in deep drawing.

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“…When the standard deviation increases, the error increases. The mean values of the dynamic component of the angular displacements θ (1,1) and θ (2,1) are presented in Figs. 7a and 7b for σ m = σ I = 5%.…”

Section: Numerical Simulationmentioning

confidence: 99%

Dynamic response of a spur gear system with uncertain parameters

Guerine¹,

Hami

Walha

et al. 2016

jtam

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In this paper, we propose a new approach for taking into account uncertainties based on the projection on polynomial chaos. The new approach is used to determine the dynamic response of a spur gear system with uncertainty associated to gear system parameters. The simulation results are obtained by the polynomial chaos approach for dynamic analysis under uncertainty. The proposed approach is an efficient probabilistic tool for uncertainty propagation. It has been found to be an interesting alternative to the parametric studies. The polynomial chaos results are compared with Monte Carlo simulations.

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Reliability-based design for soil tillage machines

Cited by 42 publications

References 13 publications

Import Substitution Technology and Machinery as the Basis for Eliminating Food Dependence of Russia

Import Substitution Technology and Machinery as the Basis for Eliminating Food Dependence of Russia

Uncertainty analysis of deep drawing using surrogate model based probabilistic method

Dynamic response of a spur gear system with uncertain parameters

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