Performance of leaf spring suspended axles in model approaches of different complexities

Rill, Georg; Bauer, F.; Topcagic, Edin

doi:10.1080/00423114.2021.1928249

Cited by 5 publications

(3 citation statements)

References 9 publications

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“…When three LSs are in contact, the initial stiffness of the LPLS suspension is recorded as K s r Àz b r ð Þ, a 2 (0, i), b 2 (0, a). The equivalent CS dynamic stiffness K coil Z coil ð Þ and the relationship between k coil z coil ð Þ and K s X ð Þ are shown in equation (13).…”

Section: Equivalent Model Of Ls Vertical Stiffnessmentioning

confidence: 99%

“…Firstly, the PWT simulation is carried out on the LS suspension multibody model, and the relationship among wheel travel distance X l , hub force F l X l ð Þ, and suspension stiffness K s l X l ð Þ is obtained. Secondly, the CS stiffness is calculated according to equations (11)(12)(13). The spring displacement and free length are obtained through equations ( 14)- (15).…”

Section: Equivalent Model Of Ls Vertical Stiffnessmentioning

confidence: 99%

“…To capture this nonlinearity, a five-link LS model for describing the parabolic leaf spring’s stiffness characteristics was proposed. 13 Despite the ability of the parabolic leaf spring three-link or five-link model to parameterize the LS stiffness, both models ultimately transform the LS stiffness into other bushing stiffness or torsional stiffness of the torsion spring. Thus, directly using LS stiffness as a design parameter remains challenging due to its dependence on geometric structure and material properties, which complicates suspension stiffness design and optimization.…”

Section: Introductionmentioning

confidence: 99%

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Modeling and simulation of the equivalent vertical stiffness of leaf spring suspensions

Zhang,

Long,

Lin

et al. 2023

Advances in Mechanical Engineering

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In vehicle multi-body dynamics (MBD) modeling, the stiffness parameterization of leaf spring (LS) is an unavoidable challenge regardless of the selection of modeling methods. On the contrary, the parameterization of Coil Spring (CS) stiffness is easy to achieve by adjusting the scale factor. Therefore, a novel LS stiffness parameterization method by treating the suspension stiffness as an intermediate variable through a CS stiffness is proposed based on the virtual displacement theory. The proposed method is then implemented in the vehicle-level modeling of a commercial Van with front transverse leaf spring suspensions and rear longitudinal parabolic leaf spring suspensions. The MBD model is validated by natural frequency tests and suspension stiffness simulations. Furthermore, the vertical acceleration of the car body is also verified. Results show that the root mean square (RMS) values of body vertical acceleration in the equivalent CS model are just slightly lower than that in the LS suspensions. The applicability and capability of the proposed method are proven to address the limitation of LS stiffness parameterization in MBD modeling. It lays the groundwork for efficiently simulating the LS suspension in vehicle ride and handling design and optimization.

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Section: Equivalent Model Of Ls Vertical Stiffnessmentioning

confidence: 99%

Section: Equivalent Model Of Ls Vertical Stiffnessmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Modeling and simulation of the equivalent vertical stiffness of leaf spring suspensions

Zhang,

Long,

Lin

et al. 2023

Advances in Mechanical Engineering

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Study on the Behavior of a Beam Prototype for a Van Rear Drive Axle

Dobre

Chiriac²

2022

The 16th International Conference Interdisciplinarity in Engineering

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Simulation Study on Driving Dynamic Characteristics of a Light Rocket Launcher

Ma,

Yu,

et al. 2024

Lecture Notes in Mechanical Engineering

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Taking a light rocket launcher as the research object, based on random road excitation and applying the theory of multi-rigid-body system dynamics, the multi-body dynamics model of a light rocket launcher is established, and its driving dynamic characteristics are studied. Considering the load-bearing characteristics of leaf spring and the use of tires, the driving dynamics simulation of light rocket launcher on C-class virtual road is carried out. Considering the vibration impact of the road surface on the rocket launcher, the vibration characteristic results of the rocket launcher are analyzed, and the ride comfort index is used to evaluate the driving reliability of the rocket launcher.

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Performance of leaf spring suspended axles in model approaches of different complexities

Cited by 5 publications

References 9 publications

Modeling and simulation of the equivalent vertical stiffness of leaf spring suspensions

Modeling and simulation of the equivalent vertical stiffness of leaf spring suspensions

Study on the Behavior of a Beam Prototype for a Van Rear Drive Axle

Simulation Study on Driving Dynamic Characteristics of a Light Rocket Launcher

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