Bolted connections are widely used in assembly structures, and their dynamic characteristics are often affected by stiffness, damping, excitation, and other factors. In order to solve the problems of low computational efficiency of fine modeling and large computational error of linearized equivalent modeling of bolted structures, this paper proposes a dynamic characteristic parameter identification method for bolted structures based on the multiscale method and considering the influence of nonlinear factors. In this method, the bolted connection characteristics are simulated in the form of a combination of shear stiffness, torsional stiffness, nonlinear stiffness, and viscous damping coefficient and identified according to the test measurement frequency and frequency response function. At the same time, by establishing the nonlinear dynamic model of bolted structure, the influence of different bolt preloads and excitation forces on the dynamic characteristics of bolted structure is studied.
Research on the Simulation Method for Equivalent Stiffness of Bolted Connection Thin Plate Structures
2024
Article (Journal)
Electronic Resource
Unknown
Metadata by DOAJ is licensed under CC BY-SA 1.0
Analysis and Validation on Normal Connection Dynamic Stiffness of Bolted Joint Interface Ensemble
British Library Online Contents | 2012
|Theoretical Analysis for Bolted Member Stiffness
British Library Online Contents | 2012
|An Improved Stiffness Model for Bolted Joints
Online Contents | 2009
|Photoelastic-fatigue programme of experimental research in connection with bolted joints
Engineering Index Backfile | 1954
|Member Stiffness and Contact Pressure Distribution of Bolted Joints
Online Contents | 1994
|