Allocation Optimization of Multi‐Axis Suspension Dynamic Parameter for Tracked Vehicle

Ling, Qihui; Dai, Juchuan; He, Xingyun; Chen, Shengzhao; Chen, Zhewu

doi:10.1155/2021/8961020

Cited by 2 publications

(2 citation statements)

References 29 publications

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“…In addition, there are often conflicting relationships among the objectives in multi-objective optimization problems [28,29]. Therefore, it is necessary to measure the weights of multiple objectives and build a multi-objective optimization model for vertical and lateral smoothness as shown in Equation ( 6) [30,31]. Here, x i : design variable where i = 1, 2, 3, 5; y m (x i ): sub-objective function of m, m = 1, 2; and P m : percentage of outcome weights for the m th sub-objective function.…”

Section: Multi-objective Optimization 61 Theoretical Analysismentioning

confidence: 99%

Multi-Objective Optimization of Bogie Stability for Minimum Radius Curve of Battery Track Engineering Vehicle

Shen,

Zhao,

Wang

et al. 2024

Applied Sciences

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A battery track engineering vehicle faces challenges such as derailment and other safety concerns when navigating an R20m minimum radius curve, primarily owing to its low vertical and horizontal stabilities. To address these issues, a methodology integrating genetic optimization algorithms with a rigid and flexible coupled multi-body dynamics simulation is proposed to optimize the primary suspensions of the bogie of the vehicle. Initially, a multi-objective optimization model combining rigid and flexible coupled multi-body dynamics of battery track engineering vehicles with a genetic optimization algorithm was formulated. Subsequently, the optimal Latin hypercube design was applied to analyze the sensitivity of vertical and horizontal stability to various suspension parameters. Finally, a non-dominated sorting genetic algorithm (NSGA-II) and an archive-based micro genetic algorithm (AMGA) were applied to optimize the primary suspensions to enhance stability. Consequently, a set of optimal suspension parameter combinations was obtained. A notable enhancement was observed in the lateral stability of the optimized battery track engineering vehicles by 23.33% and in the vertical stability by 3.5% when traversing the R20m minimum radius curve, thereby establishing a theoretical foundation for further improving the running safety of railway vehicles and resolving the shortcomings of less research on the smallest radius curve.

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Section: Multi-objective Optimization 61 Theoretical Analysismentioning

confidence: 99%

Multi-Objective Optimization of Bogie Stability for Minimum Radius Curve of Battery Track Engineering Vehicle

Shen,

Zhao,

Wang

et al. 2024

Applied Sciences

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“…Finally, the correctness of the theoretical model and the optimization of the grouser parameters was verified through prototype experiments. Qiao et al [24,25] established a high-speed tracked vehicle action system model by using the simulation analysis method. Subsequently, the vibration response of the vehicle on uneven pavement was evaluated from four aspects: driver comfort, driver absorbed power, occupant handling efficiency, and suspension dynamic travel.…”

Section: Introductionmentioning

confidence: 99%

Multi-body dynamics modeling and test of an articulated steering half-track tractor

Zhou,

Chen,

et al. 2023

International Journal of Agricultural and Biological Engineering

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With the benefits of small turning radius and high trafficability, the articulated steering half-track tractor had been widely utilized in orchard and small spaced farmland. To study the dynamic performance of the articulated steering half-track tractor and provide a model basis for studying the path tracking control, an accurate multi-body dynamic model of the tractor was required. In this study, the crucial parameters in the dynamic model construction of the tractor were investigated. Firstly, the topology model of the components of the half-track tractor was built by RecurDyn, in which the movement subs and driver functions were given. Secondly, considering the difference of dynamic characteristic of the articulated steering tractor with respect to different pavement hardnesses, the soft and hard pavement models were constructed by employing the harmonic superposition method. Finally, the simulations of the half-track tractor under straight-line and swerve had been conducted on the two types of pavements, and the simulation results were compared with the experimental and theoretical results. The results indicated that the average speed error of the dynamic model on hard pavement and farmland soft pavement were 2.7% and 2.1% compared with the real tractor tests. At the same time, the straight-line driving offset errors of the dynamic model on the two pavements were 1.6% and 3.8% for the front wheels and the rear wheels offset errors were 3.9% and 2.4%, respectively. Furthermore, the turning radius error under front wheel steering was 8.2% and the error under articulated steering was 5.3%. It is proved that the established dynamic model had high accuracy, which provides an efficient approach to analyze the dynamic features of the half-track tractor.

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Allocation Optimization of Multi‐Axis Suspension Dynamic Parameter for Tracked Vehicle

Cited by 2 publications

References 29 publications

Multi-Objective Optimization of Bogie Stability for Minimum Radius Curve of Battery Track Engineering Vehicle

Multi-Objective Optimization of Bogie Stability for Minimum Radius Curve of Battery Track Engineering Vehicle

Multi-body dynamics modeling and test of an articulated steering half-track tractor

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