High-speed 3D digital image correlation for measuring tire rolling resistance coefficient

Gao, Xiaoshuai; Zhuang, Ye; Liu, Shu

doi:10.1016/j.measurement.2020.108830

Cited by 17 publications

(7 citation statements)

References 35 publications

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“…T , which came from the aforementioned integral pixel search. In equation (7), the Jacobian matrix of the correlation function was derived according to the following expression [30]:…”

Section: Measurement Approachmentioning

confidence: 99%

“…As an optical noncontact method, digital image correlation (DIC) methods can provide full-field displacement and strain measurement for deformed objects and have been widely * Author to whom any correspondence should be addressed. adopted in various fields due to their simple experimental arrangements and procedures, high-precision results, and noncontact characteristics [5][6][7]. For deformations with only small rotational movement, traditional DIC algorithms can effectively obtain accurate estimates of the deformation fields.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Strain accuracy enhancement of stereo digital image correlation for object deformation with large rotations

Wu¹,

Zhao²,

Liu³

et al. 2022

Meas. Sci. Technol.

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We propose a full-field stereo digital image correlation (DIC) strain measurement method in order to overcome the poor accuracy while measuring the deformation under large rotations. Such drawback comes from the missing of considering rotation movements of the deformed objects when calculating their strain values. To address that, we first used a DIC matching algorithm combined with rotated subset and feature point detection to obtain displacement fields. By employing a singular value decomposition (SVD) method, we then can calculate rotation matrices of the strain windows before and after deformations. Finally, in order to eliminate the strain errors caused by rotation, we introduced the rotation matrices into the classical pointwise least square (PLS) DIC strain calculation method. Both numerical simulations and experiments are performed, and the accuracy and effectiveness of the proposed method are confirmed by the experimental results.

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“…T , which came from the aforementioned integral pixel search. In equation (7), the Jacobian matrix of the correlation function was derived according to the following expression [30]:…”

Section: Measurement Approachmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Strain accuracy enhancement of stereo digital image correlation for object deformation with large rotations

Wu¹,

Zhao²,

Liu³

et al. 2022

Meas. Sci. Technol.

View full text Add to dashboard Cite

show abstract

“…The research methods of tire rolling resistance usually include theoretical analysis method and the experimental method. 7,8 In recent years, with the development of computer technology, the research methods also show a diversified trend, [9][10][11][12] of which numerical simulation calculation method is one of them. However, due to the lack of computing power and algorithm development, most scholars have simplified the tire tread patterns in the numerical simulation of rolling resistance, which leads to the poor correlation between the test and numerical simulation results.…”

Section: Introductionmentioning

confidence: 99%

Study on the influence of cornering characteristics of complex tread tires on rolling resistance based on finite element method

Yan

et al. 2023

Advances in Mechanical Engineering

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The existence of tire slip angle and camber angle causes that the test results of conventional rolling resistance tester are often very different from the measured results installed on the vehicle. In addition, the test cost of rolling resistance tester with sideslip and roll is high. To solve the above problems, the effects of cornering characteristics on rolling resistance of complex tread tires were analyzed by finite element method (FEM). The numerical simulation model of a tire with complex tread patterns was established, and the reliability of the established numerical simulation model was verified by the experiments. The response relationships between tire lateral force, sideslip angle, camber angle and rolling resistance under multiple pure sideslip conditions and combined conditions were compared and analyzed, as well as the contribution rate of each tire component to rolling resistance under the corresponding conditions. The obtained research results can provide support for vehicle chassis adjustment and energy saving and consumption reduction in tire structure design.

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“…Many scholars have developed the influence of temperature, road conditions, pattern types, and other factors on the rolling resistance of tires. The research method and change trend of rolling resistance of rubber tires are given, which provides a basis for the research of rolling resistance of rubber tracks [ 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 ]. The above studies show that rubber tracks are subjected to high-frequency alternating loads during driving.…”

Section: Introductionmentioning

confidence: 99%

Modeling and Verification of Rolling Resistance Torque of High-Speed Rubber Track Assembly Considering Hysteresis Loss

Kang

Shen

et al. 2023

Polymers

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Due to the viscoelasticity of rubber materials, hysteresis loss due to deformation is the main reason for the rolling resistance of high-speed rubber tracks. Since the structure and material of high-speed rubber track assemblies are different from traditional tires and metal tracks, the rolling resistance theory of traditional wheeled and tracked vehicles is not applicable. Therefore, in order to determine the rolling resistance scientifically and accurately, the mechanism research of the rolling resistance of high-speed rubber track assembly is the key to the design of high-speed rubber crawler vehicles. In this paper, the stress–strain characteristics of rubber track under the action of compression, tension, bending, and driving were studied. The strain load spectrum of rubber tracks was established, and the strain cyclic load was extracted by the rainflow method. The temperature model of the rubber track was developed based on its dynamic characteristics. On the basis of energy conservation, the hysteresis loss of rubber is equivalent to the energy consumption of rolling resistance, and the theoretical model of rolling resistance of high-speed rubber track assembly is established. In accordance with the model above, the key influencing factors and changing trends of rolling resistance are analyzed, which provides a theoretical basis for the performance optimization of high-speed rubber track assembly.

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High-speed 3D digital image correlation for measuring tire rolling resistance coefficient

Cited by 17 publications

References 35 publications

Strain accuracy enhancement of stereo digital image correlation for object deformation with large rotations

Strain accuracy enhancement of stereo digital image correlation for object deformation with large rotations

Study on the influence of cornering characteristics of complex tread tires on rolling resistance based on finite element method

Modeling and Verification of Rolling Resistance Torque of High-Speed Rubber Track Assembly Considering Hysteresis Loss

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