Dynamic Behavior and Force Analysis of the Full Vehicle Model using Newmark Average Acceleration Method

Yildirim, E.; Esen, İsmail

doi:10.48084/etasr.3335

Cited by 8 publications

(2 citation statements)

References 24 publications

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“…In the literature, quarter car [1][2][3][4][5][6][7], half car [8][9][10], and full car [11][12][13] models are generally used for the analysis of car suspension systems. Hanafi controlled the semi-active car suspension system using PID (Proportional-Integral-Derivative) controller [14].…”

Section: Introductionmentioning

confidence: 99%

Comparative analysis of full car model with driver using PID and LQR controllers

Eroğlu

Koç²,

Kozan

et al. 2022

International Journal of Automotive Science and Technology

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In this study, an active suspension model is proposed to increase the driving safety and passenger comfort of the car, which is adversely affected by car-road interaction. In this context, the full car model with a driver is considered as eight degrees of freedom. All the motion equations of the car were determined by the Lagrangian method and converted into state-space forms. Then, these equations are solved precisely by using Euler's method in Matlab software. PID and LQR controllers are designed to reduce the vertical displacement of the passenger and the rotational movements of the car. In order to evaluate the performance of the designed controllers, two different road inputs and two different car speeds are taken into account. In the simulation results, the vertical displacement and acceleration values of the driver and the rotational movements of the car were examined. While the PID controller stands out in damping the displacement values at low speeds, the LQR controller is much more successful in other cases.

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Section: Introductionmentioning

confidence: 99%

Comparative analysis of full car model with driver using PID and LQR controllers

Eroğlu

Koç²,

Kozan

et al. 2022

International Journal of Automotive Science and Technology

View full text Add to dashboard Cite

show abstract

“…Yildirim and Esen examined the dynamic behavior in the vertical direction only by using a full vehicle model, taking into account different road inputs and different vehicle speeds [3]. The most used controller as an active controller in vehicle suspension systems is usually fuzzy logic.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Lateral and Vertical Direction Dynamic Responses of a Full Car Model Exposed to Sine Road Input

Eroğlu

2022

Sakarya University Journal of Science

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In this study, the full car model, which is exposed to a sinusoidal road input, has been examined to ensure the driving safety of the vehicles and the comfort of the passengers. In this context, the full car, including lateral and vertical movements, is modeled with fourteen degrees of freedom. The second-order equations of motion of the modeled vehicle were obtained using the Lagrangian method and reduced to first-order equations of motion using the state-space form. Then, these equations of motion were solved precisely in the time domain using the Euler method in the Matlab environment. To examine the lateral movements and the rotations of the vehicle in the pitch and roll axis, a sine wave with a wavelength of 5 m and an amplitude of 0.1 m was applied to the wheels of the vehicle. In the analysis, the right front wheel is exposed to a sinusoidal road input at t=0 s, while the left front wheel is exposed to a sinusoidal road input after the vehicle moves 2.5 m. Thus, both the pitch and roll motion of the vehicle will be examined in detail. In the study, four different vehicle masses 500 kg, 1000 kg, 2000 kg, and 3000 kg were taken into consideration and the effect of different vehicle masses on passenger and vehicle dynamic behaviors was investigated. In addition, the situation of passing vehicles at variable speeds from the given disruptive road input has also been examined. The maximum dynamic responses of the passenger and the vehicle were examined when the vehicle speed changed from 3 m/s to 50 m/s by 0.1 m/s. In the study, it has been observed that the vehicle mass and certain vehicle speed have effects on the vertical and lateral displacements and accelerations of the passenger and the vehicle

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Realistic Modelling for Analysis of Train-Structure and Ballasted-Track Interaction for High-Speed Trains

Eroğlu

Koç

Esen

et al. 2023

J. Vib. Eng. Technol.

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Dynamic Behavior and Force Analysis of the Full Vehicle Model using Newmark Average Acceleration Method

Cited by 8 publications

References 24 publications

Comparative analysis of full car model with driver using PID and LQR controllers

Comparative analysis of full car model with driver using PID and LQR controllers

Investigation of Lateral and Vertical Direction Dynamic Responses of a Full Car Model Exposed to Sine Road Input

Realistic Modelling for Analysis of Train-Structure and Ballasted-Track Interaction for High-Speed Trains

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