Investigation of the effect of squeezing force on nonlinear dynamic characteristics of lap riveted structures

IF 2.8 3区工程技术 Q2 MECHANICS

International Journal of Non-Linear Mechanics Pub Date : 2025-04-07 DOI:10.1016/j.ijnonlinmec.2025.105114

Guocheng Lv , Fanli Meng , Dawei Jia , Changyou Li , Guangyong Song , Hang Lu , Chunyu Zhao

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引用次数: 0

Abstract

The dynamic characteristics of lap riveted structures have an important influence on the performance of aircraft structures. According to the loading characteristics of the lap riveted structure, the effect of squeezing force on stiffness and damping characteristics of lap riveted structures is studied. Finally, a complete dynamic model of the lap riveted structure under axial excitation and its influence is constructed. The proposed dynamic model is verified by the stiffness test, modal hammer test, and vibration response test. The dynamic characteristics of lap riveted structures under axial excitation with different squeezing force parameters are discussed using frequency response curves and sweep results. The results show that the change of squeezing force leads to the change of stiffness and damping characteristics of the lap riveted structure, and then affects the dynamic characteristics of the lap riveted structure. The greater the squeezing force, the smaller the response amplitude, and the greater the frequency of the system entering the unstable state. The potential value of this study is to guide the optimal design of lap riveted structures in the design phase.

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来源期刊

International Journal of Non-Linear Mechanics 物理-力学

CiteScore

5.50

自引率

9.40%

发文量

192

审稿时长

67 days

期刊介绍： The International Journal of Non-Linear Mechanics provides a specific medium for dissemination of high-quality research results in the various areas of theoretical, applied, and experimental mechanics of solids, fluids, structures, and systems where the phenomena are inherently non-linear. The journal brings together original results in non-linear problems in elasticity, plasticity, dynamics, vibrations, wave-propagation, rheology, fluid-structure interaction systems, stability, biomechanics, micro- and nano-structures, materials, metamaterials, and in other diverse areas. Papers may be analytical, computational or experimental in nature. Treatments of non-linear differential equations wherein solutions and properties of solutions are emphasized but physical aspects are not adequately relevant, will not be considered for possible publication. Both deterministic and stochastic approaches are fostered. Contributions pertaining to both established and emerging fields are encouraged.