Effects of contact between rough surfaces on the dynamic responses of bolted composite joints: Multiscale modeling and numerical simulation

Zhang, Zhen; Xiao, Yi; Xie, Yuanhong; Su, Zhongqing

doi:10.1016/j.compstruct.2018.12.019

Cited by 42 publications

(13 citation statements)

References 29 publications

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“…the deformation law) between normal loads and the actual contact surface. In addition, the fractal contact theory also has capacity to simulate the rough interface in the numerical analyses (Afferrante et al, 2018; Komvopoulos and Ye, 2001; Sahoo and Ghosh, 2007; Zhang et al, 2019b).…”

Section: Introductionmentioning

confidence: 99%

Monitoring of bolt looseness using piezoelectric transducers: Three-dimensional numerical modeling with experimental verification

Ning

Wang

Song

2020

Journal of Intelligent Material Systems and Structures

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Across multiple industries, bolted connections have been widely used to hold different parts and components together, due to their advantages such as convenient use and low cost. However, bolt looseness may lead to disastrous consequences if not promptly detected. In this article, a novel numerical modeling is proposed to simulate the piezoelectrically enabled active sensing method that can monitor the looseness of bolted connection, and this investigation can help us better understand the mechanism of the active sensing of a bolted connection. Compared to prior investigations, the main contribution of this article is that we develop a new three-dimensional modeling method on microscopic roughness of bolted interface by using the fractal contact theory. The numerical results, backed by experimental verification from the testing on a bolted joint, reveal that the received signal peak amplitude is proportional to the bolt preload. This phenomenon can be attributed to the enlarging actual contact area with the increasing preload, since a larger contact surface can enhance stress wave propagation. Moreover, the proposed numerical modeling has better performance than similar research in the past, which can provide guidance for future investigations on bolt looseness monitoring.

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Section: Introductionmentioning

confidence: 99%

Monitoring of bolt looseness using piezoelectric transducers: Three-dimensional numerical modeling with experimental verification

Ning

Wang

Song

2020

Journal of Intelligent Material Systems and Structures

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“…For instance, bolted joints are preferred in the steel construction field as an alternative to the welded connections due to its flexibility of reassembling and disassembling [6]. In advanced composite structure applications, the reliability and strength property of the bolted connections in joining main structural parts have made it a more preferable type of fastening mechanism compared to the adhesive bonded joints [7,8].…”

Section: Introductionmentioning

confidence: 99%

Modal testing and modelling the dynamic characteristics of a plate with bolted joints

Bahari

Yunus

Rani

et al. 2021

JMES

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Modelling the dynamic characteristics of the bolted joints in a complex assembled structure with a high accuracy is very challenging due to the assumptions and uncertainties in the input data of the FE model. In this paper, the identification of the dynamic characteristics of the bolted joints structure using the CBUSH element connector is proposed. Modal testing and normal modes analysis are conducted on a thin plate assembled structure with bolted joints. In the simulation work, the CBUSH element connector is employed and the stiffness coefficient for six degrees of freedom is computed based on four flexibility formulae. The predicted natural frequencies and their corresponding mode shapes are compared against the results of the experimental work. A good agreement of the FE model is achieved by using the coefficient of stiffness as represented in the Swift flexibility formula. The study justifies that the dynamic characteristics of the bolt joints could be accurately modelled by using the CBUSH element connector. The obtained findings provided an alternative approach to modelling the dynamic characteristics of a thin plate assembled structure with bolted joints.

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“…In addition, the bushing of VSV mechanism is generally made of polymer materials to protect the components [21], which means that the contact force of the bushing contains a more significant damping effect. It should also be noted that the trunnion rotates relative to the bushing, the tangential force is much greater than the static friction, and the tangential damping can be ignored [22,23].…”

Section: Introductionmentioning

confidence: 99%

A rough surface damping contact model and its application in spatial variable stator vane mechanism with dry friction joint

Cheng

Meng

et al. 2021

Preprint

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For the mechanical system without oil lubrication, the impact or collision often occurs in the joint clearance, such as the variable stator vane (VSV) mechanism. In the dry friction joint, the damping of the contact bodies has a significant effect on the simulation stability of the tribo-dynamics calculation process. In order to investigate the effect of contact damping and joint clearance on the VSV mechanism performance, this paper proposes a damping contact model on rough surfaces to calculate the clearance contact force between the trunnion and bushing, and the spatial tribo-dynamics of VSV is established by combining this model with spatial dynamics. In addition, the effect of clearance size on the tribo-dynamics is analyzed. The results show that the contact damping must be included in the contact force model of dry friction joints, otherwise the calculation process will oscillate or even not converge, but the contact damping effect can be ignored in the case of lubricating oil. The movement of the trunnion in the bushing is affected by the adjustment drive and the aerodynamic drag, which leads to the wear concentrated on the edge of the bushing. The clearance size affects the distribution of the damping forces and the rigid forces in the contact process, and the damping forces ensure the stability of the VSV tribo-dynamics simulation process. Moreover, with the increase of clearance, the adjustment accuracy of the VSV mechanism is reduced, and the wear of the bushing is intensified.

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Effects of contact between rough surfaces on the dynamic responses of bolted composite joints: Multiscale modeling and numerical simulation

Cited by 42 publications

References 29 publications

Monitoring of bolt looseness using piezoelectric transducers: Three-dimensional numerical modeling with experimental verification

Monitoring of bolt looseness using piezoelectric transducers: Three-dimensional numerical modeling with experimental verification

Modal testing and modelling the dynamic characteristics of a plate with bolted joints

A rough surface damping contact model and its application in spatial variable stator vane mechanism with dry friction joint

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