A stiffness degradation model of bolted joint based on fourth polynomial pressure distribution
Source abstract
Abstract
This paper proposed a new friction mechanical model based on the Coulomb friction law to describe the nonlinear stiffness degradation of bolted joints. Several different contact pressure distributions are analyzed, and the results show that the fourth polynomial distribution has a better effect on characterizing the contact pressure distribution of the bolted interface. Then, a new density function of friction shear stress is obtained through mathematical deduction. There is an interesting discovery that the new density function curve is similar to the truncated power-law spectrum curve. In addition, a method of parameter identification is proposed, and multiple sets of parameters are identified for the subsequent model verification. Finally, the correlation between the theoretical value and the experimental data under different pre-tightening forces is analyzed. The results show the accuracy improvement of the new model compared with the existing model. The new model has better mechanism rationality and can be applied to stiffness degradation analysis.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Bladed Disk Vibration Dynamics · Gear and Bearing Dynamics Analysis · Mechanical stress and fatigue analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Naval University of Engineering , Wuhan, CO 430000, China
References (40)
Show source-provided references
1. Exact traveling and nano-solitons wave solitons of the ionic waves propagating along microtubules in living cells10.3390/math8050697 ↗
2. Analytical-numerical solutions of photo-thermal interactions in semiconductor materials10.18576/isl/100204 ↗
3. Applications of three methods for obtaining optical soliton solutions for the Lakshmanan–Porsezian–Daniel model with Kerr law nonlinearity10.1007/s12043-019-1881-5 ↗
4. Computational analysis of a nonlinear fractional emerging telecommunication model with higher–order dispersive cubic–quintic10.18576/isl/090204 ↗
5. Dynamics of information coded in a single Cooper pair box10.1007/s10773-012-1399-9 ↗
6. Exact solution of Arrhenius equation for non-isothermal kinetics at constant heating rate and n-th order of reaction10.1007/s10910-019-01056-7 ↗
7. New extended direct algebraic method for the Tzitzica type evolution equations arising in nonlinear optics10.22034/CMDE.2019.9472 ↗
8. Teleportation in the presence of technical defect in transmission stations
9. Damping in structural joints10.1177/058310248501701105 ↗
10. Modeling the dynamics of mechanical joints10.1016/j.ymssp.2011.01.010 ↗
11. A reduced order, one dimensional model of joint response
12. Bending effects in the frictional energy dissipation in lap joints
13. 2016
14. A distributed-element model for hysteresis and its steady-state dynamic response10.1115/1.3625199 ↗
15. Modeling of contact interfaces in built-up structures by zero-thickness elements10.51202/9783181022955-271 ↗
16. Friction damping and isolation systems10.1115/1.2836456 ↗
17. On the relevance of a microslip contact model for underplatform dampers10.1016/j.ijmecsci.2016.06.015 ↗
18. One-dimensional dynamic microslip friction model10.1016/j.jsv.2005.09.019 ↗
19. Simplified models of bolted joints under harmonic loading10.1016/j.compstruc.2005.09.007 ↗
20. The influence of microslip on vibratory response, part I: A new microslip model10.1016/0022-460x(86)90238-5 ↗
21. Research on nonlinear restoration force and energy dissipation calculation of Iwan model
22. Nonlinear dynamics of structures assembled by bolted joints10.1007/bf01177306 ↗
23. Simulation of dynamics of beam structures with bolted joints using adjusted Iwan beam elements10.1016/s0022-460x(03)00499-1 ↗
24. Four-parameter Iwan model for lap-type joints10.1115/1.1989354 ↗
25. Experimental and theoretical studies of a bolted joint excited by a torsional dynamic load10.1016/j.ijmecsci.2006.07.015 ↗
26. A six-parameter Iwan model and its application10.1016/j.ymssp.2015.07.009 ↗
27. Thorough understanding on the mechanism of vibration-induced loosening of threaded fasteners based on modified Iwan model10.1016/j.jsv.2020.115238 ↗
28. A reduced Iwan model that includes pinning for bolted joint mechanics10.1007/s11071-016-3117-2 ↗
29. Identification of Iwan distribution density function in frictional contacts10.1016/j.jsv.2014.03.021 ↗
30. On the Iwan models for lap-type bolted joints10.1016/j.ijnonlinmec.2010.09.018 ↗
31. A regularized contact model with asymmetric damping and dwell-time dependent friction10.1023/B:MUBO.0000029392.21648.bc ↗
32. S. W. Kim, “Contact dynamic and force control of flexible multi-body system,” Ph.D. thesis, Department of Mechanical Engineering, McGill University Montreal (1999).
33. Multi-body impact motion with friction-analysis, simulation, and experimental validation10.1115/1.2919206 ↗
34. Coefficient of restitution interpreted as damping in vibro-impact10.1115/1.3423596 ↗
35. Development of generalized Iwan model to simulate frictional contacts with variable normal loads10.1016/j.apm.2014.01.008 ↗
36. A new approach for the determination of the Iwan density function in modeling friction contact10.1016/j.ijmecsci.2020.105671 ↗
37. Study on tangential stiffness nonlinear softening of bolted joint in friction-sliding process10.1016/j.triboint.2021.106856 ↗
38. Determination of joint stiffness in bolted connections10.1115/1.3439043 ↗
39. IMEX-a: An adaptive, fifth order implicit-explicit integration scheme
40. Structural damping caused by micro-slip along frictional interfaces10.1016/j.ijmecsci.2005.04.005 ↗