AN EFFECTIVE METHOD FOR OPTIMIZATION OF AGRICULTURAL TOOLS DESIGN

J.SEDLAR,; Said, JABBAR; Gadu,; JAN,

	AN EFFECTIVE METHOD FOR OPTIMIZATION OF AGRICULTURAL TOOLS DESIGN
The Iraqi Journal of Agricultural Science
Article 1, Volume 39, Issue 5, 2008, Pages 118-125
Authors
; JABBAR Said; ;
Abstract
This paper presents an application of an optimization procedure for a mass optimization of a welded framework of a special tractor trailer designed for transport of seeding machines. Optimization procedure, so-called Fully Stressed Design (FSD), based on an indirect approach utilizing optimum criteria has been used. The aim of the optimization was to achieve the lowest possible mass of the construction taking into consideration the allowed resistance. Through reducing the total mass of welded framework by 878.12 kg .This optimization method has saved 35.85 % of maximum stress value .From static analysis for original model that the stresses are 71.25 MPa is enough to provide the secure movement and require of rigidity under a weight of the framework that is 1362.9 kg. It has been shown that optimization procedures have an important and un replaceable role in practice, because they result in significant material savings keeping the required resistance and consistency parameters of constructions within the required specification. That is why the optimum analysis of rigidity were gustivide depending on element geometric method which is advance method problems could by the formation of the calculation model for analysis of the proposed subjects and the correct in mechanics. That are part of the programming system Pro/ Mechanica with the formation of the virtual model by means of the programmed known as CAD product Pro/ Engineer .The finite element method has been used to execute the optimum design in which the problem is solved have been determined. These problems could be the formation of the calculation model for analysis of the proposed subjects and the correct translation of results. It has been concluded that the welded framework weight can by reduced FROM 2000 KG TO 1368.9 KG.
Keywords
Framework; welded construction; Finite element method; optimization procedure; Fully Stressed Design

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