Predictive Semi-Analytical Model for Tire-Snow Interaction

Lee, Jonah H.; Liu, Qing; Zhang, T.

doi:10.4271/2005-01-0932

Cited by 18 publications

(9 citation statements)

References 10 publications

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“…While very detailed finite-element-based models of tyre-sand interactions can be developed (see, for example, references [26] and [27]), these models are inherently quite expensive computationally and, hence, less attractive. Consequently, the semi-analytical model recently proposed by Lee et al [28] has been used. This model appears to be a good compromise between the physical reality and computational efficiency when dealing with off-road vehicle travel tyre-sand interactions.…”

Section: Tyre-sand Interaction Modelmentioning

confidence: 99%

“…Within the model given by Lee et al [28], the tyresand interaction is developed by properly modifying the tyre-hard road model for the tyre in question. This modification is affected both by the properties and characteristics of the tyre and by the mechanical behaviour of sand and involves the following steps.…”

Section: Tyre-sand Interaction Modelmentioning

confidence: 99%

“…The introduction of this slip shift enables the selected tyre-rigid-road longitudinal force versus slip formula to yield a non-zero force (required to overcome the motion resistance force) under pure-rolling (zero-slip) off-road vehicle travel conditions. Thus, within the second step of the Lee et al [28] model, the appropriate relation for the slip shift and its dependence on the sand properties and the vertical force is derived.…”

Section: Tyre-sand Interaction Modelmentioning

confidence: 99%

“…Step 2: driving slip-shift determination. Lee et al [28] also provided a relationship for the calculation of the initial slip shift. Since this relation is also based on the smooth-tyre approximation and the Bekker pressure versus sinkage relation, it was not used in the present work.…”

Section: (B)mentioning

confidence: 99%

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Computational investigation of blast survivability and off-road performance of an up-armoured high-mobility multi-purpose wheeled vehicle

Grujičić

Arakere

Nallagatla

et al. 2009

Proceedings of the Institution of Mechanical Engineers, Part D:

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Since ballistic and blast survivability and off-road handling and stability of military vehicles, such as the high-mobility multi-purpose wheeled vehicle (HMMWV), are two critical vehicle performance aspects, they both (including the delicate balance between them) have to be considered when a new vehicle is being designed or an existing vehicle retrofitted (e.g. up-armoured). Finite-element-based transient non-linear dynamics and multi-body longitudinal dynamics computational analyses were employed, relatively, in the present work to address the following two specific aspects of the performance of an HMMWV: first, the ability of the vehicle to survive detonation of a landmine shallow buried into sand underneath the right wheel of the vehicle and, second, the ability of the vehicle to withstand a simple straight-line brake manoeuvre during off-road travel without compromising its stability and safety of its occupants. Within the first analysis, the kinematic and structural responses (including large-scale rotation and deformation, buckling, plastic yielding, failure initiation, fracture, and fragmentation) of the HMMWV to the detonation of a landmine were analysed computationally using the general-purpose transient non-linear dynamics analysis software ABAQUS/Explicit. The second analysis was carried out using Simpack, a general-purpose multi-body dynamics program, and the main purpose of this analysis was to address the vehicle stability during the off-road travel. The same sand model was used in both types of analysis. Finally, the computational results obtained are compared with general field-test observations and data in order to judge the physical soundness and fidelity of the present approach.

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Section: Tyre-sand Interaction Modelmentioning

confidence: 99%

Section: Tyre-sand Interaction Modelmentioning

confidence: 99%

Section: Tyre-sand Interaction Modelmentioning

confidence: 99%

Section: (B)mentioning

confidence: 99%

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Computational investigation of blast survivability and off-road performance of an up-armoured high-mobility multi-purpose wheeled vehicle

Grujičić

Arakere

Nallagatla

et al. 2009

Proceedings of the Institution of Mechanical Engineers, Part D:

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show abstract

“…associated with a low computational cost, their results are highly dependent on the functional forms and parameterization of the force elements. Typically the constitutive relations for the tyre-sand interaction force elements are determined experimentally, computationally (using finite element simulations of tyresand interactions), or through a combination of the experimental and computational efforts (see, for example, references [4] and [5]). Because of practical limitations, the experimental and computational test matrices can account only for a limited number of (inflation pressure, vertical load, friction coefficient, longitudinal slip, and slip angle) tyre-sand interaction conditions.…”

Section: Introductionmentioning

confidence: 99%

Finite element analysis of the effect of up-armouring on the off-road braking and sharp-turn performance of a high-mobility multi-purpose wheeled vehicle

Grujičić

Bell

Arakere

et al. 2009

Proceedings of the Institution of Mechanical Engineers, Part D:

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A comprehensive finite element investigation is carried out of the effect of up-armouring on the off-road performance of a prototypical high-mobility multi-purpose wheeled vehicle. The effect of up-armouring on the vehicle performance was investigated under the following off-road manoeuvres: straight-line flat-land braking; straight-line off-angle downhill braking; sharp left turn. In each case, the appropriate vehicle performance criteria are identified and the parameters used to quantify these criteria are defined and assessed. The computational results obtained clearly revealed the compromises in vehicle off-road performance caused by the up-armouring employed to improve vehicle blast and ballistic protection performance and survivability. The results obtained are also analysed and explained in terms of general field-test observations in order to judge the physical soundness and fidelity of the present computational approach. Finally, the potential benefits and ramifications of lightweight up-armouring in providing the needed level of blast and/or ballistic performance while causing fewer compromises in the vehicle off-road performance are also discussed.

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Simulation on Vertical Displacement and Vertical Force Distribution of Snow Under Tracked Vehicle

Zhu,

Yan,

Wei

et al. 2024

Lecture Notes in Electrical Engineering

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Predictive Semi-Analytical Model for Tire-Snow Interaction

Cited by 18 publications

References 10 publications

Computational investigation of blast survivability and off-road performance of an up-armoured high-mobility multi-purpose wheeled vehicle

Computational investigation of blast survivability and off-road performance of an up-armoured high-mobility multi-purpose wheeled vehicle

Finite element analysis of the effect of up-armouring on the off-road braking and sharp-turn performance of a high-mobility multi-purpose wheeled vehicle

Simulation on Vertical Displacement and Vertical Force Distribution of Snow Under Tracked Vehicle

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