A design tool to evaluate the vehicle ride comfort characteristics: modeling, physical testing, and analysis

Karen, İdris; Kaya, Necmettin; Öztürk, Ferruh; Korkmaz, I.; Yıldızhan, Murat; Yurttas, Aysun

doi:10.1007/s00170-011-3592-z

Cited by 19 publications

(6 citation statements)

References 8 publications

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“…It also performed slightly better for the suspension deflection. Body acceleration is the primary indicator for evaluating the ride comfort of a vehicle [32]. According to the vibration standard ISO 2631, ride comfort can be evaluated by using the root mean square of the weighed acceleration of a vehicle's body.…”

Section: Numerical Simulationsmentioning

confidence: 99%

Modeling and Control of a Shear‐Valve Mode MR Damper for Semiactive Vehicle Suspension

Meng

Zhou

2019

Mathematical Problems in Engineering

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Aiming at demonstrating the feasibility and capability of applying magnetorheological (MR) dampers to the vehicle vibration control, the hyperbolic tangent model is established to characterize the performance of a shear-valve mode MR damper that was developed for a vehicle suspension system in this study. An experimentally derived differential evolution (DE) algorithm is used to find the optimal parameters of the model. To demonstrate the effectiveness of the MR damper for semiactive suspension systems, a model was constructed of a quarter-car suspension system with the damper. A fuzzy control algorithm with a correction factor was adopted to control the output force of the damper and obtain better overall control of the performance of the suspension system. Simulation results indicate that the improved fuzzy control algorithm provides a better ride comfort than normal fuzzy control and passive control. Furthermore, the semiactive suspension system displayed effectively vibration suppression thanks to the MR damper combined with corresponding control algorithms.

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Section: Numerical Simulationsmentioning

confidence: 99%

Modeling and Control of a Shear‐Valve Mode MR Damper for Semiactive Vehicle Suspension

Meng

Zhou

2019

Mathematical Problems in Engineering

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“…The seat is a critical structure of a vehicle because vibration transmitted through the seat can affect both human health and driving comfort (Griffin, 1990). Many methods have been developed numerically and experimentally to assess seat performance in attenuating or influencing vibration; however, the findings have not always been consistent due to the nonlinearity of the material used for the seat and the human responses (Karen et al, 2012). The seat vibrations due to the movement of a car are transmitted to the car floor, which is later transmitted to the human body through seat structure and can be complex, involving many factors.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Preload, Density and Thickness on Seat Dynamic Stiffness

Hassan¹,

Rezali²,

Jalil³

et al. 2023

JST

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The vibration transferred to the car floor transmits to the human body through the seat structure, and the typical design of the seat structure consists of several components such as seat frame and seat cushion. The material widely used as seat cushion is open-cell polyurethane (PUR) foam; when under vibration, it will behave dynamically. Factors such as mechanical properties and material thickness of PUR can affect its behaviour and performance and the amount of vibration transmits to the human body. This work measures the PUR dynamic stiffness for different material densities and thicknesses. The test was conducted using an indenter head with a flat surface since it was a less expensive method, and quicker measurement could be done. The force sensor was placed within the indenter structure to measure the load transmitted to the seat and acceleration data acquired by the accelerometer, which was mounted on a shaker test plate. Foam materials with 30 kg/m3 and 44 kg/m3 with 30 mm and 50mm thickness are used in the experiment with the amount of preload applied of 20 N,30 N and 40 N. Seat stiffness increased when the preload increased from 20 N to 40 N, and a similar trend occurred when foam thickness decreased. The lower density of PUR resulted in a greater increase of seat stiffness and damping across the frequency 0-30 Hz compared to a higher density of PUR. This study concluded that thickness, preload, and density significantly affect seat dynamic stiffness.

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“…Yang et al 4 studied on a systematic methodology which is used to evaluate and improve the ride comfort of a tractor with a tandem suspension based on multi-body system dynamics, and they defined a new index called annoyance rate which indicated the quantitative correlation between objective method and subjective comment. Karen et al 5 a simulation-based model of a full-car suspension system is proposed to predict the ride comfort. A simulation model was created for calculating ride comfort effectively.…”

Section: Introductionmentioning

confidence: 99%

Correlation between objective and subjective tests for vehicle ride comfort evaluations

Böke

Albak

Kaya

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part D:

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One of the most important criteria that vehicle customers take into consideration when buying vehicles is ride comfort. Ride comfort is determined in two different ways, called objective and subjective methods. This research presents an approach for subjective and objective evaluations of vehicle ride comfort through road tests. In this study, first, reliable driver evaluation for subjective tests is made and tests are performed with these reliable drivers. Correlation between objective and subjective test results is achieved for different vehicle types and road groups and software is developed to evaluate subjective ride comfort by using objective test data acquired from the vehicle. This software is intended to be used instead of subjective tests in future vehicle development studies.

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A design tool to evaluate the vehicle ride comfort characteristics: modeling, physical testing, and analysis

Cited by 19 publications

References 8 publications

Modeling and Control of a Shear‐Valve Mode MR Damper for Semiactive Vehicle Suspension

Modeling and Control of a Shear‐Valve Mode MR Damper for Semiactive Vehicle Suspension

The Effect of Preload, Density and Thickness on Seat Dynamic Stiffness

Correlation between objective and subjective tests for vehicle ride comfort evaluations

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