Modeling of joint structure interface friction mechanics:A review
Joints,as fundamental components of industrial machinery,are pivotal for extensive re-search and optimization in the realm of equipment manufacturing.Currently,due to the nonlinearity,complexity,and uncertainty of joint interfaces,the behavior mechanism of cross-scale and multi-phys-ical field complex mechanics is unclear,making it difficult to accurately predict the dynamic character-istics of joint structures and monitor their dynamic service performance.This has become a bottleneck that restricts the breakthrough in precision structural dynamics analysis,high-fidelity simulation,design,optimization,and control.However,joint structures are widely used,and engineering and tech-nical personnel have further demand for the mechanism and multifunctionality of joint structures.This article mainly reviews the analytical modeling,finite element modeling,and experimental systems of joint structure interface friction mechanics,and proposes the development trend of new joint structure design.Firstly,based on the requirements of the joint's working environment,engineering problems,and the lack of effective strength and stiffness prediction theory,this paper reviews the load types of bolted connection structures and the application of precise joint equivalent models.Secondly,several mainstream theoretical models of friction joint structures were summarized,including a constitutive model that analyzes the multi-scale physical behavior and laws of the joint interface at the micro/nano scale,a phenomenological model that derives macroscopic dynamic responses using system identifica-tion theory and methods,and a phenomenological constitutive friction model that integrates the mi-croscopic contact mechanism of the constitutive model with the macroscopic perspective of system identification.Then,reviewing the simulation method based on the finite element and experimental methods of joint structures,which include direct finite element modeling,indirect equivalent finite ele-ment modeling,experimental benchmark systems,and anisotropic excitation joint structure experi-mental platforms.Finally,a new joint design concept addressing the multifunctional requirements of joint structures in the equipment field is proposed.This concept involves"transmitting static and sup-pressing dynamic"joint components as well as lightweight biomimetic joint components.
万方数据
维普
