Modeling and vibration analysis of bolted joint multi-plate structures with general boundary conditions

Xing, Wu Ce; Wang, Yan Qing

doi:10.1016/j.engstruct.2023.115813

Cited by 8 publications

(1 citation statement)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The simulation results successfully reproduced the soft nonlinear vibration phenomenon of bolt-connected thin plates. Xing et al [13] developed mathematical and finite element models for multi-plate structures connected via flange geometry bolts. In the finite element model, they incorporated spring elements to simulate the changes in connection stiffness under different conditions.…”

Section: Introductionmentioning

confidence: 99%

Research on the Impact of Non-Uniform and Frequency-Dependent Normal Contact Stiffness on the Vibrational Response of Plate Structures

Yan,

Fan,

Wang

et al. 2024

Applied Sciences

View full text Add to dashboard Cite

Mechanical interfaces are prevalent in industries like aerospace and maritime, where the normal contact stiffness on these surfaces is a crucial component of the overall stiffness of mechanical structures. From the perspective of structural mechanics, normal contact stiffness significantly affects the dynamic response of mechanical structures and must be considered in mechanical design and simulation analysis. Essentially, the mechanical interface represents a typical type of nonlinear contact, characterized by both its non-uniform distribution and its frequency-dependent properties under external excitations. A plate structure was designed to study the distribution and frequency-dependent characteristics of normal contact stiffness on the mechanical interface. Experiments validated that the normal contact stiffness not only significantly increases the fundamental frequency of the plate but also alters its mode shapes. To replicate the experimental results in simulations, the BUSH elements were used to model the normal contact stiffness within the plate structure, arranging it non-uniformly and setting it to vary with frequency according to the plate’s mode shapes and frequency response. This method accurately replicated the plate’s mode shapes and response curves within the 0–1000 Hz range in simulations.

show abstract

Section: Introductionmentioning

confidence: 99%