Welcome to Journal of Graphics share: 
Journal of Graphics

Journal of Graphics

Previous Articles     Next Articles

Optimization of Parameter Design of New Articulated Steering Mechanism

Abstract: A new articulated steering mechanism that adopts a special dual-joystick and its structural type are introduced. An articulated steering mechanism of heavy vehicle is used as a certain study object, and the virtual prototype of the steering mechanism hinge point parameters is set up by the CAE software. With the “design study” method, the changes of the steering performance parameters and the design variable of the approximate sensitivity are obtained, and so are the hinge points with the greatest relevance. By using OPTDES-SQP optimization model and hereafter setting the objective function, the optimization design model whose optimization objective is set as the comprehensive steering performance optimal, is established. After optimization, the change rate of arm difference is -74.6%, and the increase of steering angle is +2.22%. Through the practical application, in the process of steering, the vibration and shock of steering hydraulic steering system is reduced, and the stability of the system is increased. With these good results achieved, the necessary basis can be provided for the control and operation of articulated steering system.#br# Key words: articulated steering; optimal design; steering stability   

  • Online:2014-02-28 Published:2015-03-26

PDF (PC)

255

Abstract: A new articulated steering mechanism that adopts a special dual-joystick and its structural type are introduced. An articulated steering mechanism of heavy vehicle is used as a certain study object, and the virtual prototype of the steering mechanism hinge point parameters is set up by the CAE software. With the “design study” method, the changes of the steering performance parameters and the design variable of the approximate sensitivity are obtained, and so are the hinge points with the greatest relevance. By using OPTDES-SQP optimization model and hereafter setting the objective function, the optimization design model whose optimization objective is set as the comprehensive steering performance optimal, is established. After optimization, the change rate of arm difference is -74.6%, and the increase of steering angle is +2.22%. Through the practical application, in the process of steering, the vibration and shock of steering hydraulic steering system is reduced, and the stability of the system is increased. With these good results achieved, the necessary basis can be provided for the control and operation of articulated steering system.

Key words: articulated steering, optimal design, steering stability