Generalised pitch-plane vehicle model satisfying Olley ride criteria

Williams, Daniel E.; Nhila, Amine

doi:10.1504/ijhvs.2016.077321

Cited by 3 publications

(2 citation statements)

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“…The axle location convention has also been found useful for multiaxle vehicle ride models. Using it a pitch plane ride model can be constructed bearing some resemblance to equations (27) and (28) (Williams and Nhila, 2016).…”

Section: Multiaxle Applicationmentioning

confidence: 99%

Rationale for a new vehicle dynamic convention

Williams¹,

Margolis

2020

Journal of Vibration and Control

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The term “slip angle” has been inconsistently applied in the vehicle dynamics field for some time, even in the presence of a clear definition in the SAE J670 standard defining vehicle dynamic terms. This work proposes the opposite of the Society of Automotive Engineers slip angle convention, not a completely unknown concept in the literature. This proposed slip angle convention is combined with a simple yet novel convention change for axle location. Differences between the conventional model and the new conventions are discussed, and the differences between the proposed convention and SAE J670 are clearly delineated. This work is intended as a reference to be used in the vehicle dynamics community by any researcher wishing to work with a model more intuitively pleasing and widely applicable than the accepted standard. This work does not present a particular new research result. Rather, it provides context on the often confusing choice of vehicle dynamic conventions and suggests a preferable selection.

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Section: Multiaxle Applicationmentioning

confidence: 99%

Rationale for a new vehicle dynamic convention

Williams¹,

Margolis

2020

Journal of Vibration and Control

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“…Pintado and Benitez 2 present a methodology of optimization of suspensions based on a full-vehicle vertical dynamic model. Williams and Nhila 3 present a generalized vehicle model that allows characterization of ride dynamics for an arbitrary number of axles, with the purpose of determine suspension stiffness so that the Olley criteria are satisfied. Drehmer et al 4 present a suspension parameter optimization, using a multi-objetictive function, based on RMS vertical acceleration.…”

Section: Introductionmentioning

confidence: 99%

Optimization of vehicle suspension parameters based on ride comfort and stability requirements

Silva

Reinaldo

Montenegro

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part D:

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The use of optimization methods in engineering is growing, allowing the best possible way to fulfill the requirements of the project. For vehicle suspensions, there are various conditions, which involve comfort, safety, stability, maneuverability, among others. A safety and stability evaluation is carried out by several tests, including Double Lane Change. In this maneuver, the vehicle must change lanes quickly twice, allowing it to be assessed for stability in sudden movements. For ride comfort, it is common for the design to be based on the vehicle’s natural vibration frequencies. In this context, this work aims to present a methodology for optimizing the suspension parameters of a vehicle, based on the natural frequencies of vibration and the simulation of a Double Lane Change maneuver. For that, it is employed vertical and lateral dynamics mathematical models, with hypotheses that allow the adequate adaptation to the represented phenomena. Finally, Particle Swarm Optimization (PSO) is used, which is a stochastic algorithm, based on nature. It has low computational cost, with reasonable results, allowing the parameters to be estimated and comprising the two objectives simultaneously.

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