Determination of the equivalent parameters for modelling a McPherson suspension with a quarter-car model

Hurel, Jorge; Peralta, Juan E.; Rivas, Jorge Luis Amaya; Flores, Bolivar; Flores, Francisca

doi:10.1109/isie.2017.8001289

Cited by 5 publications

(4 citation statements)

References 22 publications

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“…Neglecting the mass of the suspension strut and the control arm, considering the vertical displacement of the vehicle only, the quarter-vehicle model of the MacPherson suspension can be simplified to the model shown in Figure 3 [22]. A is the connection point between the MacPherson suspension strut and the control arm; B is the connection point between the control arm and the body.…”

Section: Stiffness Of the Suspensionmentioning

confidence: 99%

Study of Suspension Parameters Matching to Enhance Vehicle Ride Comfort on Bump Road

Gao

2021

Shock and Vibration

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In this study, the parameters of the MacPherson front suspension and the E-type multilink rear suspension are matched to enhance the vehicle ride comfort on bump road. Vehicle vibration and suspension stiffness are analyzed theoretically. In the simulation study, the influence of the front and rear wheels on the vehicle vibration is considered, so the time-domain curves of the front and rear seat rail accelerations are processed by adding windows with two different window functions. The resulting ΔRmsLocal and ΔRmsGlobal are used as evaluation indexes of the vehicle ride comfort. The sensitivity analysis yields the magnitude of the influence of the suspension parameters on the evaluation indexes. In addition, the trends of ΔRmsLocal and ΔRmsGlobal with bushing stiffness at different vehicle speeds are discussed. The results show that longitudinal ΔRmsLocal and ΔRmsGlobal of the seat rails are influenced by the bushings mostly, while the vertical ΔRmsLocal and ΔRmsGlobal of the seat rails are influenced by the spring and shock absorber mostly. The trends of ΔRmsLocal and ΔRmsGlobal with bushing stiffness are influenced by the speed of the vehicle. Finally, the vehicle ride comfort is enhanced after optimization and matching of the suspension parameters by NSGA-II optimization algorithm.

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Section: Stiffness Of the Suspensionmentioning

confidence: 99%

Study of Suspension Parameters Matching to Enhance Vehicle Ride Comfort on Bump Road

Gao

2021

Shock and Vibration

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“…where A _ R B is the derivative of A R B with respect to time, and v sx , v sy and v sz are three independent parameters specifying the angular velocity v s of the vehicle body. Then, the angular velocity v s is given by equations (13) and (15)…”

Section: Kinematic Analysis Of Vehicle Bodymentioning

confidence: 99%

“…Balike et al 9 identified the equivalent suspension and damping rates of a planar double-wishbone suspension from the suspension kinematics. Hurel et al 15 found the equivalent parameters of a quarter-car model based on the geometry of the MacPherson suspension. Zhou et al 16 proposed a unified method to determine the equivalent suspension parameters from the kinestatic relations of the spatial suspension mechanism.…”

Section: Introductionmentioning

confidence: 99%

A generalized method for three-dimensional dynamic analysis of a full-vehicle model

Zhou

2020

Proceedings of the Institution of Mechanical Engineers, Part D:

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Dynamic performances of the vehicle are significantly influenced by the suspension mechanisms. An understanding of the effects of the suspension kinematics and statics (or, briefly, kinestatics) is crucial to improve the dynamic performances of a vehicle. However, the suspension kinestatics is often neglected in the dynamic analysis. This paper presents a generalized full-vehicle model for the three-dimensional dynamic analysis, which consists of two pairs of the front and rear spatial suspension mechanisms. Each suspension is represented by a corresponding instantaneous screw joint supporting the vehicle body at any instant. The full-vehicle model is viewed to be a 6-degree-of-freedom spatial parallel mechanism. As the spatial parallel mechanism, the kinematics and statics of the full-vehicle model are analysed using the theory of screws. Taking the suspension kinestatics and tyre dynamics into consideration, the dynamic equations of the full-vehicle model are formulated in terms of the Lagrangian equations. As immediate applications, the dynamic behaviours of a vehicle are simulated and evaluated under two different road disturbances, respectively. By comparing with the simulation results from two other widely used methods, it confirms the validity of the theoretical method.

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“…The first category tries to seek equivalent stiffness and damping parameters that contain geometric information. Based on the instantaneous rotational center of suspensions, Balike et al 29 analytically derived the equivalent parameters for a planar double wishbone suspension while Hurel et al 30 derived the equivalent parameters for a planar Macpherson suspension. Besides, Zhou et al 31 proposed another identification method of equivalent parameters using the theory of screws.…”

Section: Introductionmentioning

confidence: 99%

Geometry optimization of a planar double wishbone suspension based on whole-range nonlinear dynamic model

Niu

Jin

Wang

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part D:

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Dynamic analysis is an essential task in the geometry design of suspension systems. Whereas the dynamic simulation based on numerical software like Adams is quite slowly and the existing analytical models of the nonlinear suspension geometry are mostly based on small displacement hypothesis, this paper aims to propose a whole-range dynamic model with high computational efficiency for planar double wishbone suspensions and further achieve the fast optimal design of suspension geometry. Selection of the new generalized coordinate and explicit solutions of the basic four-bar mechanism dramatically reduce the complexity of suspension geometry representation and provide analytical solutions for all of the time varying dimensions. By this means, the running speed and computational accuracy of the new model are guaranteed simultaneously. Furthermore, an original Matlab/Simulink implementation is given to maintain the geometric nonlinearity in the solving process of dynamic differential equations. After verifying its accuracy with an ADAMS prototype, the presented whole-range model is used in the vast-parameter optimization of suspension geometry. Since both kinematic and dynamic performances are evaluated in the objective function, the optimization is qualified to give a comprehensive suggestion to the design of suspension geometry.

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Determination of the equivalent parameters for modelling a McPherson suspension with a quarter-car model

Cited by 5 publications

References 22 publications

Study of Suspension Parameters Matching to Enhance Vehicle Ride Comfort on Bump Road

Study of Suspension Parameters Matching to Enhance Vehicle Ride Comfort on Bump Road

A generalized method for three-dimensional dynamic analysis of a full-vehicle model

Geometry optimization of a planar double wishbone suspension based on whole-range nonlinear dynamic model

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