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Algorithms 2018, 11(2), 22; https://doi.org/10.3390/a11020022

Design Optimization of Steering Mechanisms for Articulated Off-Road Vehicles Based on Genetic Algorithms

School of Mechanical Science and Engineering, Jilin University, Changchun 130022, China
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Received: 3 January 2018 / Revised: 6 February 2018 / Accepted: 7 February 2018 / Published: 13 February 2018
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Abstract

Two cylinders arranged symmetrically on a frame have become a major form of steering mechanism for articulated off-road vehicles (AORVs). However, the differences of stroke and arm lead to pressure fluctuation, vibration noise, and a waste of torque. In this paper, the differences of stroke and arm are reduced based on a genetic algorithm (GA). First, the mathematical model of the steering mechanism is put forward. Then, the difference of stroke and arm are optimized using a GA. Finally, a FW50GLwheel loader is used as an example to demonstrate the proposed GA-based optimization method, and its effectiveness is verified by means of automatic dynamic analysis of mechanical systems (ADAMS). The stroke difference of the steering hydraulic cylinders was reduced by 92% and the arm difference reached a decrease of 78% through GA optimization, in comparison with unoptimized structures. The simulation result shows that the steering mechanism optimized by GA behaved better than by previous methods. View Full-Text
Keywords: steering mechanism; articulated off-road vehicles; optimization; genetic algorithm; ADAMS steering mechanism; articulated off-road vehicles; optimization; genetic algorithm; ADAMS
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Zhou, C.; Liu, X.; Xu, F. Design Optimization of Steering Mechanisms for Articulated Off-Road Vehicles Based on Genetic Algorithms. Algorithms 2018, 11, 22.

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