Factoring Nonlinear Kinematics into New Suspension Design: A CAE Approach to Vehicle Roll Dynamics

Kaminaga, Masugi; Murata, Makoto; Tateishi, Yoshiro

doi:10.4271/940871

Cited by 6 publications

(4 citation statements)

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“…In the kinematic study of the McPherson-type steering suspension the following initial considerations have been taken into account [3]:…”

Section: Analysis Of the Real Systemmentioning

confidence: 99%

“…Given the complexity of the system it is necessary to have access to analytical models which permit the optimisation of the global design of the vehicle [1][2][3][4]. In this paper we put forward a kinematic development which on the basis of the characteristics of the system allows us to determine its performance and to propose operational improvements.…”

Section: Introductionmentioning

confidence: 99%

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Development and validation of a three-dimensional kinematic model for the McPherson steering and suspension mechanisms

Mántaras

Luque

Vera

2004

Mechanism and Machine Theory

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“…In the kinematic study of the McPherson-type steering suspension the following initial considerations have been taken into account [3]:…”

Section: Analysis Of the Real Systemmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Development and validation of a three-dimensional kinematic model for the McPherson steering and suspension mechanisms

Mántaras

Luque

Vera

2004

Mechanism and Machine Theory

View full text Add to dashboard Cite

“…After an exhaustive analysis of this suspension system and of di erent publications [1][2][3][4][5][6][7][8], the movement is considered as a sum of two elemental movements. The rst represents the parallel displacement of the wheels to a middle position, with a revolute joint de ned by points C r and C l .…”

Section: Analysis Of the Real Systemmentioning

confidence: 99%

A three-dimensional kinematic model for compound crank axle suspension mechanism

Mántaras

Luque

Vera

2003

Proceedings of the Institution of Mechanical Engineers, Part D:

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A three-dimensional model is presented of the kinematic behaviour of a compound crank axle suspension system. A general approach is put forward to determine the main parameters (camber, steer angle, toe in/out) that influence the handling of the vehicle as a function of the operational factors of the system. The input data are the suspension geometry and the travel of the struts. The model has been applied to a standard vehicle, and the validity of the results has been proven.

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“…The consideration of nonlinear kinematics is usually necessary for systems with large amplitude motion and multiple, coupled degrees of freedom (DoFs). The inclusion of nonlinear kinematics is shown to be important in applications such as biomechanics [17,18], robotics [19,20], transportation [21,22], tracking control [23,24], and design of manipulators [25,26], to name a few. However, for ocean engineering applications, numerical models employed to simulate the dynamic behavior of a floating structure generally assume the motion to be planar, in the direction of wave travel, with up to three DoFs considered (horizontal translation, vertical translation, and rotation in the resulting plane: surge, heave, and pitch, respectively) [27,28].…”

Section: Introductionmentioning

confidence: 99%

Nonlinear Dynamic and Kinematic Model of a Spar-Buoy: Parametric Resonance and Yaw Numerical Instability

Giorgi

Davidson

Habib

et al. 2020

JMSE

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Mathematical models are essential for the design and control of offshore systems, to simulate the fluid–structure interactions and predict the motions and the structural loads. In the development and derivation of the models, simplifying assumptions are normally required, usually implying linear kinematics and hydrodynamics. However, while the assumption of linear, small amplitude motion fits traditional offshore problems, in normal operational conditions (it is desirable to stabilize ships, boats, and offshore platforms), large motion and potential dynamic instability may arise (e.g., harsh sea conditions). Furthermore, such nonlinearities are particularly evident in wave energy converters, as large motions are expected (and desired) to enhance power extraction. The inadequacy of linear models has led to an increasing number of publications and codes implementing nonlinear hydrodynamics. However, nonlinear kinematics has received very little attention, as few models yet consider six degrees of freedom and large rotations. This paper implements a nonlinear hydrodynamic and kinematic model for an archetypal floating structure, commonplace in offshore applications: an axisymmetric spar-buoy. The influence of nonlinear dynamics and kinematics causing coupling between modes of motion are demonstrated. The nonlinear dynamics are shown to cause parametric resonance in the roll and pitch degrees of freedom, while the nonlinear kinematics are shown to potentially cause numerical instability in the yaw degree of freedom. A case study example is presented to highlight the nonlinear dynamic and kinematic effects, and the importance of including a nominal restoring term in the yaw DoF presented.

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Factoring Nonlinear Kinematics into New Suspension Design: A CAE Approach to Vehicle Roll Dynamics

Cited by 6 publications

References 0 publications

Development and validation of a three-dimensional kinematic model for the McPherson steering and suspension mechanisms

Development and validation of a three-dimensional kinematic model for the McPherson steering and suspension mechanisms

A three-dimensional kinematic model for compound crank axle suspension mechanism

Nonlinear Dynamic and Kinematic Model of a Spar-Buoy: Parametric Resonance and Yaw Numerical Instability

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