Study of composite load-bearing characteristics of the Uptis non-pneumatic tyre

Liang, Xuemeng; Fu, Hongxun; Wang, Yan; Ku, Laiyun; Qiao, Huanbo; Li, Ning

doi:10.1504/ijvsmt.2022.126973

Cited by 3 publications

(3 citation statements)

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“…Liang et al developed a FEM for the Uptis NPT and analyzed its bearing characteristics. According to the existing patent information, the distinctive feature of Uptis is the integration of composite reinforcement plates within its spokes [21]. Current research has largely overlooked the impact of composite material applications on the mechanical performance of NPTs [22].…”

Section: Introductionmentioning

confidence: 99%

“…Although numerous studies have been conducted on the stiffness characteristics of NPTs with different structural forms using experiments, simulations, and curved beam models, most have focused on NPTs with homogeneous materials in their spoke structures. Considering that the spokes embedded with composite materials can change the load-bearing characteristics and enhance the design flexibility of NPTs [21], it is crucial to investigate the influence of composite material anisotropy and develop universal mechanical models to analyze their forces and deformation.…”

Section: Introductionmentioning

confidence: 99%

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Study on the Load-Bearing Characteristics Analysis Model of Non-Pneumatic Tire with Composite Spokes

Sun,

Liu,

Zhang

et al. 2024

Machines

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This study aims to analyze the load-bearing characteristics of non-pneumatic tires with composite spokes using experimental and finite element simulation methods and to establish a mechanical analysis model based on the Timoshenko beam theory. Subsequently, experiments were conducted on carbon fiber-reinforced plastics and rubbers to establish the corresponding constitutive model. A finite element model of the non-pneumatic tires with composite spokes was also developed. The main structural and material parameters were selected, and their correlation with the vertical stiffness of the non-pneumatic tires with composite spokes was studied using response surface methodology. The stiffness characteristics of the composite spokes were simplified, and a load-bearing characteristic analysis model was established. The results indicated that among the parameters of the reinforcement plate structure and rubber, the constitutive parameter C10 of the rubber in the spokes had the greatest impact, with a comprehensive influence value of 319.83 N/mm. Under a load of 5000 N, the load-bearing characteristic analysis model results were consistent with those of the finite element simulation, with a maximum relative error of 7.49%. The proposed load-bearing characteristic analysis model can assist in the rapid design and performance prediction of non-pneumatic tires with composite spokes.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Study on the Load-Bearing Characteristics Analysis Model of Non-Pneumatic Tire with Composite Spokes

Sun,

Liu,

Zhang

et al. 2024

Machines

View full text Add to dashboard Cite

show abstract

“…With in-depth research into non-pneumatic tires, it was found that non-pneumatic tires are prone to fatigue failure due to structural characteristics that produce alternating stresses, local stress concentration and severe heating during motion, leading to a decline in durability and reliability of non-pneumatic tires [11][12]. Liang Xuemeng et al studied the stress and deformation of flexible spoke units under radial and composite forces, analyzing the high stress concentration areas [13]. Fu Hongxun et al pointed out that when the non-pneumatic tire is subjected to a large load, the flexible spoke support is prone to breakage due to excessive deformation, causing fatigue damage [14].…”

Section: Introductionmentioning

confidence: 99%

Design and simulation of a new type of composite flexible-spoke non-pneumatic tire

Li,

Fu,

et al. 2023

Preprint

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This paper proposes a new type of composite flexible-spoke non-pneumatic tire structure to address issues such as easy fatigue failure, difficult maintenance and high replacement costs of the support bodies of conventional non-pneumatic tires. Firstly, a new composite flexible-spoke non-pneumatic tire model was established using ABAQUS software. Finite element simulation analysis was then carried out to study the basic mechanical properties of this tire, as well as the relationship between the sinking amount of the tire and motion interference between adjacent support body units under different thicknesses of the double arcs sections of individual support body units. The results show that the larger the sinking amount of the new composite flexible-spoke non-pneumatic tire, the easier it is for adjacent support body units to interfere with each other's motion. To avoid motion interference, two improvement schemes were proposed on the basis of the original tire model, and the rationality of the improvement schemes was verified through finite element simulation. This research provides a new solution to reduce the difficulty of maintenance and cost of replacement of non-pneumatic tire support bodies.

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Investigation of Over Obstacle Performance Analysis of Auxetic Airless Tyres

ÜZÜN,

KAYACAN

2023

International Journal of 3D Printing Technologies and Digital Industry

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Advancing technologies are leading to the development of airless tire designs that can perform well on challenging road conditions. These designs include lattice structures, mesh structures, and periodic structures, among others. In this study, three different tire designs were analyzed using finite element analysis (FEA) to evaluate their strength and dynamic behavior. Dynamic analyses were conducted on two commercial designs and one original design with re-entrant lattice structures. The study found that these structures are versatile as they provide multiple load paths to resist deformation and failure, and they can be modified to produce different properties like stiffness and strength. The original design with re-entrant structures demonstrated mechanical properties that were twice as good as other commercial tires. Moreover, a spline-lined structure was developed, and it was discovered that a two-stage tire design could enhance strength. The analyses were conducted at specific and controlled speeds with a designated bump size. In total, nine analyses were performed, making a significant contribution to the development of airless tire design.

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Study of composite load-bearing characteristics of the Uptis non-pneumatic tyre

Cited by 3 publications

References 0 publications

Study on the Load-Bearing Characteristics Analysis Model of Non-Pneumatic Tire with Composite Spokes

Study on the Load-Bearing Characteristics Analysis Model of Non-Pneumatic Tire with Composite Spokes

Design and simulation of a new type of composite flexible-spoke non-pneumatic tire

Investigation of Over Obstacle Performance Analysis of Auxetic Airless Tyres

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