A modified elastic contact stiffness model considering the deformation of bulk substrate

Li, Ling; Wang, Jingjing; Pei, Xiyong; Chu, Wei; Cai, Anjiang

doi:10.1007/s12206-020-0126-3

Cited by 20 publications

(7 citation statements)

References 24 publications

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“…This is because the tangential friction between the contact surfaces hinders the tangential slip of the contact surfaces, resulting in a smaller contact area. 28–30…”

Section: Contact Pressure Distribution Lawof Pin-loaded Lugmentioning

confidence: 99%

“…It can be observed from the figure that the maximum contact pressure increases with the increase of the friction coefficient m. This is because the tangential friction between the contact surfaces hinders the tangential slip of the contact surfaces, resulting in a smaller contact area. [28][29][30] In order to facilitate the calculation in engineering, the most common working condition of pin and pin hole without lubrication and friction coefficient m = 0:15 is taken as the benchmark, and the equations ( 6) and ( 7) for calculating a 1 and a 2 are obtained by regression fitting in Matlab.…”

Section: Factors Affecting the Contact Surfaces Areamentioning

confidence: 99%

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Contact pressure analysis of pin-loaded lug with clearance

Huang

Zhao

et al. 2022

Advances in Mechanical Engineering

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In engineering design, none of the existing models for calculating the contact pressure in pin-loaded lug is fully compatible with the actual working conditions. In order to obtain a more accurate formula for calculating the maximum contact pressure in pin-loaded lug, after verifying the reliability of the finite element model with PRESCALE pressure measurement film, single-parameter and multi-parameter analysis of two types of factors affecting the contact pressure distribution in the compressive surface of the pin-loaded lug were conducted in the fully elastic state. The influence of the relevant design parameters of the pin-loaded lug on its maximum contact pressure was obtained, and a formula for calculating the maximum contact pressure of the pin-loaded lug based on the Hertz stress distribution model was introduced. It is verified by a large number of finite element samples that the predicted values of the formula are in good agreement with the finite element solutions in the range of common scales for engineering design, and have high accuracy, which can be used for engineering design reference.

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“…This is because the tangential friction between the contact surfaces hinders the tangential slip of the contact surfaces, resulting in a smaller contact area. 28–30…”

Section: Contact Pressure Distribution Lawof Pin-loaded Lugmentioning

confidence: 99%

Section: Factors Affecting the Contact Surfaces Areamentioning

confidence: 99%

Contact pressure analysis of pin-loaded lug with clearance

Huang

Zhao

et al. 2022

Advances in Mechanical Engineering

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“…inherent frequencies [12], modal vibrations [13]). In recent years, many scholars have studied the contact characteristics between rough surfaces, including the characterization of rough surface micromorphology [14,15], contact mechanics model [16], the characteristics of contact stiffness and damping [17,18].…”

Section: Graphical Abstractmentioning

confidence: 99%

An equivalent calculation method for 3D contact area between two rough surfaces based on 2D profiles

Jing

Meng

Dai

et al. 2022

Preprint

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The calculation of the real contact area between rough surfaces is an important prerequisite for studying the contact characteristics of mechanical joints. However, it is challenging to accurately calculate the real contact area between rough surfaces by existing theoretical and experimental methods. Therefore, an efficient and practical equivalent calculation method for the real contact area between three-dimensional(3D) rough surfaces based on two-dimensional(2D) profiles is presented in this paper. The main advantage of the presented method as compared with those available in the literature is that the real contact area can be predicted only by the section of the 3D rough surfaces in contact, which greatly reduces the computational cost. The sampling strategy of sections is studied to improve the accuracy of the proposed method. The accuracy of the proposed equivalent calculation method is verified by numerical simulation. The results show that the proposed equivalent calculation method can efficiently predict the real contact area between rough surfaces within the scope of engineering application.

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“…The geometric parameter R wai can be calculated by Equation (10). It should be noted that the element size along the radius R is set very small to ensure the accuracy of the calculation result.…”

Section: Identification Of Geometric Parameter R Waimentioning

confidence: 99%

“…The bolt joint is almost the most common connection in mechanical systems, and various models are proposed around the modeling of this joint. The commonly used model includes the classic spring-damping model [1][2][3][4], the zero-thickness model [5][6][7], the eightnodes-hexahedron-element model [8,9], the elastic contact stiffness model [10,11], and the virtual material model [12][13][14][15]. The spring-damping model is simple and convenient, and therefore, it has been widely used in engineering structures.…”

Section: Introductionmentioning

confidence: 99%

A Three-Dimensional Transition Interface Model for Bolt Joint

et al. 2022

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Bolt connection is an important component in mechanical structure which significantly affects the dynamic property of the whole structure. In this paper, a three-dimensional transition interface model which contains geometric and physical parameters is proposed to model the bolted joint based on the contact analysis. The geometric parameters and the physical parameters are used to characterize the influence of contact area and contact pressure which are related to connection parameters such as material, roughness, connection thickness, and tightening force, respectively. After that, the geometric parameter identification method is proposed, and the geometric parameter database of bolt joints for machine tools is constructed based on the Kriging interpolation method. Then, the model updating method based on the combination of modal parameters and frequency response function is proposed to identify the physical parameters and thickness of the three-dimensional transition interface model. The database of the transition interface model is constructed after verifying the validity of the proposed model. Finally, an engineering example of an engraving machine tool is used to check the practicability of the proposed transition interface model and the usage of the constructed parameter database.

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A modified elastic contact stiffness model considering the deformation of bulk substrate

Cited by 20 publications

References 24 publications

Contact pressure analysis of pin-loaded lug with clearance

Contact pressure analysis of pin-loaded lug with clearance

An equivalent calculation method for 3D contact area between two rough surfaces based on 2D profiles

A Three-Dimensional Transition Interface Model for Bolt Joint

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