Reliability-based design optimization strategy for soil tillage equipment considering soil parameter uncertainty
Автор: Kharmanda Ghias Mohamed, Antypas Imad Rezakalla
Журнал: Вестник Донского государственного технического университета @vestnik-donstu
Рубрика: Процессы и машины агроинженерных систем
Статья в выпуске: 2 (85) т.16, 2016 года.
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The objective of this work is to provide an efficient tool of Reliability-Based Design Optimization (RBDO) for soil tillage machine design process in order to achieve designs with a required reliability (safety) level. An efficient methodology that controls the reliability levels for different statistical distribution cases of random soil properties is developed. This developed strategy is based on design sensitivity concepts in order to determine the influence of each random parameter. The application of this method consists in taking into account the uncertainties on the soil tillage forces. The tillage forces are calculated in accordance with analytical model of McKyes and Ali with some modifications to include the effect of both soil-metal adhesion and tool speed. The different results show the importance of the developed strategy to improve the performance of the soil tillage equipments considering both random geometry and loading parameters.
Design, optimization, structural reliability, random variables, soil properties, soil tillage equipment
Короткий адрес: https://sciup.org/14250201
IDR: 14250201 | DOI: 10.12737/19690
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