Vibration research of heavy trucks. Part 2: Optimization of vehicle dynamic parameters

Nguyen, Vanliem; Yong, Yan; Hu, Yongzhu

doi:10.21595/jmeacs.2020.21814

Cited by 3 publications

(3 citation statements)

References 10 publications

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“…Mahmoodabadi et al [1] applied the genetic algorithm (GA) for improving the ride quality of the model of half-vehicle, while Li and Wang [2][3] built the dynamic model of the half-vehicles for simulating and optimizing the parameters of the cab's suspension systems to decrease the seat's vibration in the vertical direction. Chen et al [4] also applied measurement and simulation methods to optimize the cab's isolation system for heavy commercial vehicles. In addition, Zhang et al [5] had researched a dynamic model of the multi-body for the isolating systems of the cab to reduce the RMS accelerations of the vertical driver's seat and cab pitch angle.…”

Section: Introductionmentioning

confidence: 99%

Performance of semi-active cab suspension system with different control methods

Ni¹,

Nguyen²

2023

J. mechatron., artif. intell., eng.

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In this study, based on adaptive control methods, the semi-active suspension system of the heavy truck cab is researched and controlled to improve the ride comfort of the heavy truck. A dynamic model of the vehicle is established for simulation. Matlab/Simulink software is used to simulate and calculate the root mean square (RMS) accelerations of the driver’s seat and cab pitch angle under different operation conditions. Proportional-integral-derivate controller with its parameters optimized by the genetic algorithm (GA-PID controller) and Fuzzy logic control combined with PID (FLC-PID controller) are used to control the semi-active cab suspension system of the heavy truck. The obtained results show that the ride comfort of the vehicle using FLC-PID is better improved in comparison with using GA-PID under different operating conditions. Especially, when the vehicle moves at a speed of 72 km/h, the RMS accelerations of the driver's seat and cab pitch angle are greatly reduced by 26.45 % and 26.07 % respectively. Therefore, the FLC-PID control should be applied to the suspension system of the vehicles to improve the vehicle's ride comfort.

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Section: Introductionmentioning

confidence: 99%

Performance of semi-active cab suspension system with different control methods

Ni¹,

Nguyen²

2023

J. mechatron., artif. intell., eng.

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“…Improving the ride comfort of vehicles has always been of particular interest to researchers. To study this issue in detail, the influence of the vehicle's design parameters as well as the suspension system had been analyzed and evaluated [1][2][3]. Optimizing the design parameters of the suspension systems had been made to improve the ride comfort [1,4].…”

Section: Introductionmentioning

confidence: 99%

“…To study this issue in detail, the influence of the vehicle's design parameters as well as the suspension system had been analyzed and evaluated [1][2][3]. Optimizing the design parameters of the suspension systems had been made to improve the ride comfort [1,4]. Studies showed that the vehicle's ride comfort had been significantly improved.…”

Section: Introductionmentioning

confidence: 99%

Controlling isolation system of initial combustion engines

Nguyen¹,

Wen²

2022

J. mechatron., artif. intell., eng.

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To evaluate the effect of the engine vibration on the vehicle's ride comfort and improve the vehicle's ride comfort, three types of engine's isolation systems including the traditional rubber mount (TRM), hydraulic mount (HM), and semi-active HM controlled by the PID control (SHM) are proposed. A dynamic model of the inline 4-cylinder engine is established to determine the excitation force of the engine. By the combination of the random excitation of the vehicle floor affecting the engine isolation system, the isolating performance of the TRM, HM, and HM is then simulated and evaluated on isolating the engine vibration and improving the vehicle's ride comfort. Both the root mean square (RMS) values of the engine acceleration response (𝑎 ) and isolation force (𝐹 ) of engine isolation systems are given as the objective functions. The research results show that the engine vibration combined with the excitation of the road surface roughness significantly affects the vehicle's ride comfort. By using the SHM, both the engine acceleration and isolation force are significantly reduced in comparison with the TRM. Especially, the values of the 𝑎 and 𝐹 are remarkably decreased by 9.32 % and 9.69 % in comparison with the TRM. Thus, to improve the vehicle's ride comfort and reduce the effect of the engine's vibration on the ride comfort, the engine isolation system used by the TRM needs to be replaced by using the SHM.

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Effect of the geometrical parameters on the vehicle's moving stability

Ye¹,

Nguyen²,

Ke³

2022

J., mech. eng. autom., control. syst.

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To enhance the moving stability and safety of vehicles, kinematics and dynamics model of the vehicle consisting of a guided front wheel and a free rear wheel is established based on the model of a four-wheeled vehicle when the vehicle moves on the curve-road. The effect of the geometrical parameters and dynamics parameters including the factor of the moving stability, vehicle moving speed, lateral stiffness parameters of the front and rear wheels, vehicle mass, vehicle length on the vehicle moving stability and safety is then simulated and analyzed, respectively. The research results indicate that the operating parameters of the vehicle greatly affect the vehicle moving stability. The lateral stiffness parameters of the front and rear wheels should be increased while the vehicle mass needs to be reduced in the operating condition of the vehicle to enhance the vehicle moving stability. Besides, the vehicle length L should be reduced and the longitudinal distance of a needs to be distributed by 0.95×a to further improve the vehicle moving stability.

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Vibration research of heavy trucks. Part 2: Optimization of vehicle dynamic parameters

Cited by 3 publications

References 10 publications

Performance of semi-active cab suspension system with different control methods

Performance of semi-active cab suspension system with different control methods

Controlling isolation system of initial combustion engines

Effect of the geometrical parameters on the vehicle's moving stability

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