A Modified Elastoplastic Contact Stiffness Model Considering Continuous Smooth Contact Characteristics and Substrate Deformation

Li, Ling; Wang, Jingjing; Shi, Xiaohui; Tong, Meijuan; Li, Lixia

doi:10.1007/s10338-021-00244-w

Cited by 3 publications

(3 citation statements)

References 22 publications

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“…where n b c is the rounded down of the number n. Substituting equation (2) and equation (7) into equation (10) T f2 = 2 3 1:7 3 1:5 nÀ2 + 1:5 nÀ2 + :::…”

Section: Relationship Between the Tightening Torque And Clamp Force C...mentioning

confidence: 99%

“…Guo et al 9 established a two-cosine wave contact model based on the Hertz elastic contact theory, and studied the mechanical characteristics of the model during elastic deformation and other stages, considering the influence of load on deformation. Li et al 10 developed the cubic Hermite polynomial and proposed a new elastic-plastic contact stiffness model, and found that the contact stiffness of the contact surface directly affected the accuracy of the machine tool.…”

Section: Introductionmentioning

confidence: 99%

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The influence of the mounting surface error on the deformation of the guideway

Song,

Zhang,

Zhao

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part C:

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The guideway is deformed due to the clamp force of the bolt and the manufacturing error of the mounting surface. Deformation and manufacturing error constitute the guideway straightness error. In this paper, the pressure distribution of the bolt in the tightened state is simulated first, the relationship between the bolt clamp force and the tightening torque is calculated, and then the deformation of the guideway under different tightening torques is simulated. Finally, experiments are carried out on a guideway, and the results prove that the method proposed in this paper can accurately calculate the deformation of the guideway.

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“…where n b c is the rounded down of the number n. Substituting equation (2) and equation (7) into equation (10) T f2 = 2 3 1:7 3 1:5 nÀ2 + 1:5 nÀ2 + :::…”

Section: Relationship Between the Tightening Torque And Clamp Force C...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The influence of the mounting surface error on the deformation of the guideway

Song,

Zhang,

Zhao

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part C:

View full text Add to dashboard Cite

show abstract

“…Zhao et al (ZMC model) [20] extended their work using the CEB model and used interpolation to predict the relationship between dimensionless contact parameters (contact area (A * ), contact load (F * ) and mean contact pressure (p * )) and the dimensionless interference (ω * ) in the elastic-plastic range. Recent studies have proven that the ZMC, AF, GW and CEB models are inadequate [21][22][23]. Some researchers, such as Ovcharenko et al [24], Bartier et al [25] and Chaudhri et al [26] experimentally studied the contact behaviour between a deformable sphere and a hard plane.…”

Section: Introductionmentioning

confidence: 99%

Effect of Strain Hardening and Ellipticity on Elastic–Plastic Contact Behaviour between Ellipsoids and Rigid Planes

et al. 2022

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The contact behaviour between an ellipsoid and a rigid plane is significant in research on bearing and assembly joint surfaces. However, an empirical relationship between an elastic–plastic ellipsoid and a rigid plane has not been established. In this study, the elastic–plastic contact behaviour between a deformable ellipsoid and a rigid plane was investigated by establishing a new finite element model. The proposed elastic–plastic ellipsoid contact model was designed considering the effects of the ellipticity and strain-hardening rate of the ellipsoid. The strain-hardening rate and ellipticity of the ellipsoid affected the contact area, load and mean pressure. Furthermore, the effect gradually increased with an increase in interference. New dimensionless empirical formulas for determining the contact load and contact area were proposed based on the analysis. The proposed model was validated by comparing the obtained results with previous experimental results and those of theoretical models. This study can be used to predict the elastic–plastic contact parameters between a single ellipsoid and a rigid body, such as bearings, gears and cams. It can also be used to investigate the elastic–plastic contact behaviour between anisotropic rough surfaces composed of asperities with different radii of curvature.

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