Multi-objective optimization of a steering system considering steering modality

Wang, Chunyan; Zhang, Yuqi; Zhao, Wanzhong

doi:10.1016/j.advengsoft.2018.09.012

Cited by 24 publications

(16 citation statements)

References 19 publications

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“…4 Improving the handling stability of vehicles by optimizing steering system parameters has also been the subject of much research. [10][11][12][13][14][15][16][17][18] Chunyan Wang introduces steering modality into the study of steering systems, combining a dynamical model with a physical model to investigate the performance of steering feel, steering sensitivity, and steering modality. Based on the dynamical model of the vehicle and the steering system, transfer functions for steering feel, steering sensitivity, and steering stability are derived.…”

Section: Introductionmentioning

confidence: 99%

Analysis and optimization of vehicle transient characteristics under sine-swept steering input with considering steering system stiffness and damping

Gao

2022

Proceedings of the Institution of Mechanical Engineers, Part K:

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This study focuses on the influence of steering system stiffness and damping on the vehicle transient characteristics at two different types of handling frequencies, and optimizes the vehicle transient characteristics with steering system stiffness and damping as optimization variables at both handling frequencies. The kinematic relationship between wheel angle and steering wheel angle is derived as well as a detailed analysis of the forces on the steering linkage. The differential equations of vehicle dynamics are developed to explain the influence of steering system stiffness and damping on the vehicle transient characteristics theoretically. The stiffness and damping, which have a significant influence on the vehicle transient characteristics, are selected by sensitivity analysis and used as variables for simulation verification. Simulation results show that the influence of steering system stiffness and damping on vehicle transient characteristics is different at high handling frequencies and low handling frequencies. The stiffness and damping are used as optimization variables and the objective evaluation indexes of vehicle transient characteristics at high handling frequencies and low handling frequencies are used as optimization targets for multi-objective optimization by the NSGA-II optimization algorithm. The optimization results show that: The yaw rate gain relative to steering wheel angle and the delay time of lateral acceleration relative to steering wheel angle are improved at both low and high frequencies.

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Section: Introductionmentioning

confidence: 99%

Analysis and optimization of vehicle transient characteristics under sine-swept steering input with considering steering system stiffness and damping

Gao

2022

Proceedings of the Institution of Mechanical Engineers, Part K:

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“…The beam structure was lightened without sacrificing strength or rigidity, reducing the materials and cost of press production. Our design approach optimizes the main dimensions of the beam and enhances the overall performance of the press, laying the basis for optimal design of other parts of the press [4][5][6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Multi-Goal Driven Optimization of the Beam in Straight-Side Two-Point Press

Yang¹

2020

JESA

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Traditionally, the beams of mechanical presses are designed and optimized empirically. The empirical design cannot satisfy the increasingly strict requirements on product performance, quality, cost and appearance. This paper attempts to develop a lightweight design for the beam of a straight-side two-point press without sacrificing the strength and stiffness of the structure, thus saving materials and production cost. Our design was mainly developed through multi-goal-driven optimization (multi-GDO) based on ANSYS Workbench. Firstly, the finite-element model of the target beam was established with the aid of ANSYS Workbench and SolidWorks, followed by the static structural analysis on the beam structure. Next, the main dimensional parameters of the beam were subjected to sensitivity analysis, revealing the key factors affecting the beam dimensions. Finally, the multi-objective genetic algorithm (MOGA) was called to optimize the main design variables, and finalize the lightweight design of the beam. The lightweight design was found to greatly save the material and production cost. The research results lay the theoretical basis for beam improvement, and provide a reference for the optimization of other parts of mechanical press and other molding and forging machines.

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“…The optimization of steering system performance has also become a focus of scholars' research. Reference [8] introduced the steering method into the study of the steering system, combined the dynamic model with the physical model, and used the NSGA-II algorithm to optimize the steering system for further improve the performance of the system. A novel steering system has been developed to improve the driving performance during steering [9].…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, the sudden increase of the steering load will lead to the system oscillation. If the opening area8 A of the orifice 8 R increases, c K ,increases,  will increase and the pressure overshoot p M will decrease. the number of oscillations will decrease, and the corresponding stability of the system will increase.…”

mentioning

confidence: 99%

Investigation On The Influence of A Novel Redirector With By-Pass Damping On The Performance of Load Sensing Steering System

Wang

Liu²,

Chen³

et al. 2020

Preprint

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The load sensing steering system of articulated loaders is prone to large pressure shock and oscillation during steering operations, affecting the stability of the steering system. To improve this phenomenon, an optimized structure of the redirector with by-pass damping is proposed, which adding orifices and throttle grooves to the original redirector. In the study, to control the steering load and working conditions, the steering load of the loader is replaced by using a pressure regulating valve. The simulation and experimental results shows that, compared with the traditional redirector, using the novel structure redirector with by-pass damping ensures good load sensing characteristics, the peak output pressure shock caused by the load unit step signal decreases from 65.04bar to 56.35bar, with a decrease rate of 13.4%, reducing the pressure oscillation of the hydraulic system. The pressure fluctuation time can be reduced from 2.09s to 1.6s, with a decrease rate of 23.4%, the output pressure oscillation decays faster, the smoothness of the steering operation is significantly improved.

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Multi-objective optimization of a steering system considering steering modality

Cited by 24 publications

References 19 publications

Analysis and optimization of vehicle transient characteristics under sine-swept steering input with considering steering system stiffness and damping

Analysis and optimization of vehicle transient characteristics under sine-swept steering input with considering steering system stiffness and damping

Multi-Goal Driven Optimization of the Beam in Straight-Side Two-Point Press

Investigation On The Influence of A Novel Redirector With By-Pass Damping On The Performance of Load Sensing Steering System

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