Possible experimental method to determine the suspension parameters in a simplified model of a passenger car

Sh., Lajqi; Gugler, Jürgen; Lajqi, Naser; Shala, Ahmet; Likaj, Ramë

doi:10.1007/s12239-012-0059-7

Cited by 6 publications

(3 citation statements)

References 2 publications

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“…The equivalent stiffness and damping coefficients presented above were calculated using an experimental method. The equivalent stiffness values of the suspensions and tires were obtained through static vertical load-deflection tests [22,23], and similarly, the equivalent torsional stiffness values of the anti-roll bars were obtained through torsional load-torsion angular deformation tests. The values for the various equivalent stiffness, equivalent torsional stiffness, and damping The equations of motion for the driving vehicle were derived using the following Lagrange equation:…”

Section: 𝐹𝐹 =mentioning

confidence: 99%

Dynamic Modeling and Analysis of a Driving Passenger Vehicle

Yun¹,

Lee²,

Jang³

et al. 2023

Preprint

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This study presents a dynamic model of a passenger vehicle and analyzes its dynamic characteristics and responses. A dynamic vehicle model with seven degrees of freedom was established to analyze the behavior of a driving vehicle. The vehicle model had three degrees of freedom for the motion of the sprung mass and four degrees of freedom for the unsprung masses. For this model, the equations of motion were derived using Lagrange’s equation. To verify the model, the suspension deformations computed using the model were compared with the deformations measured through three actual vehicle driving tests which are the slalom, double lane change, and step steer tests. Furthermore, we investigated the effects of suspension stiffness, suspension damping, and anti-roll bar torsional stiffness on the dynamic characteristics and responses of the vehicle model. The developed dynamic vehicle model may help vehicle designers predict the dynamic responses of a vehicle through simulation without performing a driving test.

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Section: 𝐹𝐹 =mentioning

confidence: 99%

Dynamic Modeling and Analysis of a Driving Passenger Vehicle

Yun¹,

Lee²,

Jang³

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

Section: Dynamic Vehicle Modelmentioning

confidence: 99%

Dynamic Modeling and Analysis of a Driving Passenger Vehicle

et al. 2023

View full text Add to dashboard Cite

This study presents a dynamic model of a passenger vehicle and analyzes its dynamic characteristics and responses. A dynamic vehicle model with seven degrees of freedom was established to analyze the behavior of a driving vehicle. The vehicle model had three degrees of freedom for the sprung mass’s motion and four degrees for the unsprung masses. For this model, the equations of motion were derived using Lagrange’s equation. To verify the model, the suspension deformations computed using the model were compared with those measured through three actual vehicle driving tests: the slalom, double lane change, and step steer tests. Furthermore, we investigated the effects of suspension stiffness, suspension damping, and anti-roll bar torsional stiffness on the dynamic characteristics and responses of the vehicle model. This study presented a new full-car model that can analyze a turning vehicle’s behavior in response to changes in the steering angle input. The developed dynamic vehicle model may help vehicle designers predict the dynamic responses of a vehicle through simulation without performing a driving test.

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“…The vehicle suspension systems are categorized as passive, active, and semi-active systems, Lajqi et al [4] and Senthil [5], Fig. 1.…”

Section: Introductionmentioning

confidence: 99%

Designs and Optimizations of Active and Semi-Active Non-linear Suspension Systems for a Terrain Vehicle

Lajqi¹,

Pehan²

2012

SV-JME

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This paper introduces a design and optimization procedure for active and semi-active non-linear suspension systems regarding terrain vehicles. The objective of this approach is the ability to quickly analyze vehicles' suspension performances resulting from passive, active, or semi-active systems. The vehicle is represented by a mathematical model regarding a quarter of it, and equations for motion are derived and solved by using MATLAB/Simulink. In order to verify the reliability of the derived computer program, a comparison is made with one of the comprehensive commercial software packages. The decision parameters of the active damping device are optimized by using the Hooke-Jeeves method, which is based on non-linear programming. The usefulness of the treated active and semi-active systems on a concrete terrain vehicle is presented and compared with the presented passive systems by analyzing the vehicle's body acceleration, velocity, displacement, and vertical tire force, namely those aspects that directly influence driving comfort and safety.

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Possible experimental method to determine the suspension parameters in a simplified model of a passenger car

Cited by 6 publications

References 2 publications

Dynamic Modeling and Analysis of a Driving Passenger Vehicle

Dynamic Modeling and Analysis of a Driving Passenger Vehicle

Dynamic Modeling and Analysis of a Driving Passenger Vehicle

Designs and Optimizations of Active and Semi-Active Non-linear Suspension Systems for a Terrain Vehicle

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