Research on the Simulation Method for Equivalent Stiffness of Bolted Connection Thin Plate Structures
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...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2024-01-01
|
| Series: | International Journal of Aerospace Engineering |
| Online Access: | http://dx.doi.org/10.1155/2024/8648996 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832559541678505984 |
|---|---|
| author | Zhe Chen Qi-jun Zhao Guo-chen Zhou |
| author_facet | Zhe Chen Qi-jun Zhao Guo-chen Zhou |
| author_sort | Zhe Chen |
| collection | DOAJ |
| description | 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. |
| format | Article |
| id | doaj-art-2770f40d362645fb9bd3da37c3e98f66 |
| institution | Kabale University |
| issn | 1687-5974 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Aerospace Engineering |
| spelling | doaj-art-2770f40d362645fb9bd3da37c3e98f662025-02-03T01:29:50ZengWileyInternational Journal of Aerospace Engineering1687-59742024-01-01202410.1155/2024/8648996Research on the Simulation Method for Equivalent Stiffness of Bolted Connection Thin Plate StructuresZhe Chen0Qi-jun Zhao1Guo-chen Zhou2National Key Laboratory of Rotorcraft AeromechanicsNational Key Laboratory of Rotorcraft AeromechanicsAviation Industry Changhe Aircraft Industry (Group) Co.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.http://dx.doi.org/10.1155/2024/8648996 |
| spellingShingle | Zhe Chen Qi-jun Zhao Guo-chen Zhou Research on the Simulation Method for Equivalent Stiffness of Bolted Connection Thin Plate Structures International Journal of Aerospace Engineering |
| title | Research on the Simulation Method for Equivalent Stiffness of Bolted Connection Thin Plate Structures |
| title_full | Research on the Simulation Method for Equivalent Stiffness of Bolted Connection Thin Plate Structures |
| title_fullStr | Research on the Simulation Method for Equivalent Stiffness of Bolted Connection Thin Plate Structures |
| title_full_unstemmed | Research on the Simulation Method for Equivalent Stiffness of Bolted Connection Thin Plate Structures |
| title_short | Research on the Simulation Method for Equivalent Stiffness of Bolted Connection Thin Plate Structures |
| title_sort | research on the simulation method for equivalent stiffness of bolted connection thin plate structures |
| url | http://dx.doi.org/10.1155/2024/8648996 |
| work_keys_str_mv | AT zhechen researchonthesimulationmethodforequivalentstiffnessofboltedconnectionthinplatestructures AT qijunzhao researchonthesimulationmethodforequivalentstiffnessofboltedconnectionthinplatestructures AT guochenzhou researchonthesimulationmethodforequivalentstiffnessofboltedconnectionthinplatestructures |