Racing car chassis optimization using the finite element method, multi-body dynamic simulation and data acquisition

Luque, Pablo; Mántaras, Daniel Álvarez; Pello, Alberto

doi:10.1177/1754337112444517

Cited by 12 publications

(10 citation statements)

References 38 publications

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“…The simulation software is widely used for both design and vehicle optimization. 18 The design variable selected to apply and validate the methodology was the steer angle relationship between the two front wheels.…”

Section: Test Procedures and Methodology Validationmentioning

confidence: 99%

A new methodology to optimize a race car for inertial sports

Allonca

Mántaras

Luque

et al. 2019

Proceedings of the Institution of Mechanical Engineers, Part P:

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In sports competitions with wheeled vehicles, the resistances to movement that most affect vehicle performance are aerodynamic drag, rolling resistance, inertial forces and gravitational forces. When a powerful engine is available, the rolling resistance is negligible but, in competitions where the vehicle has a low-power engine or lack of it, the rolling resistance has a significant influence on the vehicle performance. The resistance to advance in curve due to the steer angle (curve resistance) is not taken into account during the design process. However, as noted in other research for this type of vehicle, the curve resistance cannot be neglected. Therefore, this article develops a methodology to optimize the vehicle cornering behavior of non-motored vehicles intended for inertial sports, which can be applied to any type of wheeled vehicle. The target of the vehicle optimization is to maximize its cornering speed, while its resistance to movement is reduced. As will be shown, both factors are related and opposed to each other.

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Section: Test Procedures and Methodology Validationmentioning

confidence: 99%

A new methodology to optimize a race car for inertial sports

Allonca

Mántaras

Luque

et al. 2019

Proceedings of the Institution of Mechanical Engineers, Part P:

Self Cite

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“…This software simulates dynamic models with flexible bodies in a shorter time than other explicit FEA software packages do. This type of software is successfully used in different fields, such as in the automotive sector [20], or in different manufacturing processes [21,22], etc., for the same purpose of this work. Utilizing multibody dynamics solution technology, MSC-ADAMS runs nonlinear dynamics in a fraction of the time required by FEA solutions.…”

Section: Methodology For Virtual Cma Analysismentioning

confidence: 99%

Dynamic Deformations in Coordinate Measuring Arms Using Virtual Simulation

Cuesta¹,

Mántaras²,

Luque³

et al. 2015

Int. j. simul. model.

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This paper presents a study for assessing the dynamic structural deformations of one of the most modern, and portable, measurement equipment: the Coordinate Measuring Arms (CMAs or AACMMs). The study of the measurement errors derived from the use of these instruments is still controversial due to a certain lack of traceability and reliability in measurements due to the influence of the human factor acting on a complex 3D structure (with 6 or 7 degrees-of-freedom). When contact measurements are taken into account, the human factor variable originates non-uniform contact forces, lack of stability, different velocities and accelerations, among unpredictable probing trajectories. All these factors lead to conclude that in every manual measurement involving a CMA there is a structural dynamic deformation caused by the approach movement before probing a contact point as well as by the force exerted during probing. In order to determine the amplitude of this deformation and its distribution along the CMA structure a new methodology has been developed. Both depend on the followed trajectory and on the probing force amplitude and orientation. This work presents the methodology and steps required for the construction of the virtual simulation model. The method employs 3D modelling of all elements of the CMA structure, Finite Element Analysis (FEA) software and multibody simulation techniques with flexible bodies. This set of software tools is nowadays capable of creating dynamic virtual models for the dynamic analysis of complex mechanisms (machines, vehicles…) in optimization tasks. The application of these tools supposes a novel approach to the study of the CMA metrological behaviour.

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“…Successful car racing depends on the ability of a driver to get the most out of an optimally designed vehicle. 1 However, the traditional vehicle dynamics are not completely applicable to a race car, which means that it is not feasible to rigidly follow the designed criterion of the passenger car. In the past few decades, numerous studies have concentrated on design methods to enhance the performance of race cars, including aerodynamic package design, [2][3][4] engine control, 5,6 suspension alignment parameters design, [7][8][9] and steering system design.…”

Section: Introductionmentioning

confidence: 99%

Research on race car steering geometry considering tire side slip angle

Zheng

Yang

2019

Proceedings of the Institution of Mechanical Engineers, Part P:

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The steering trapezoid designed according to the Ackermann steering geometry potentially causes excessive tire wear and affects the steering performance due to the large tire deformation resulting from large lateral acceleration. To address these problems, this article introduces a design method for a race car steering system that considers the tire side slip angles to optimize the target steering angle relation. First, a racing path was planned by genetic algorithm according to the given race track and race car driver characteristics. Next, the objective function of the ideal steering angle relation was constructed by introducing the Ackermann correction coefficient and establishing the modified Ackermann steering geometry model, considering the tire side slip angle. Then, a data acquisition experiment was designed, and the Ackermann correction coefficient was identified by the proposed simulation algorithm. Finally, the coincidence degree of wheel steering centers was defined as the evaluation index, which can be used to describe and evaluate the performance of the coordination for wheels’ movement. Simulation results show that the design method of the steering system effectively improves the handling stability of the race car and reduces the tire leaning-grind.

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Racing car chassis optimization using the finite element method, multi-body dynamic simulation and data acquisition

Cited by 12 publications

References 38 publications

A new methodology to optimize a race car for inertial sports

A new methodology to optimize a race car for inertial sports

Dynamic Deformations in Coordinate Measuring Arms Using Virtual Simulation

Research on race car steering geometry considering tire side slip angle

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