An adaptive component mode synthesis method for dynamic analysis of jointed structure with contact friction interfaces

Yuan, Jie; Salles, Loïc; Haddad, Fadi El; Wong, Chian

doi:10.1016/j.compstruc.2019.106177

Cited by 21 publications

(29 citation statements)

References 21 publications

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“…This would allow a significantly second model-order reduction to save computational cost. The evaluation of φ and ψ can be found in [36]. The adaptive ROM system is then obtained using the modal projection with the :…”

Section: Adaptive Transformational Matrixmentioning

confidence: 99%

“…Furthermore, it is difficult to set an explicit tolerance level beforehand within the original updating method to eliminate such numerical errors as it is pretty much case dependent. -The algorithm for real-time automatic size update [36] may still introduce some errors itself. This is because the contact conditions to update the reduced system is predicted from previous solution.…”

Section: Error Estimatormentioning

confidence: 99%

“…The algorithm to achieve the automatic size update with error estimator is presented in Algorithm 1. The basic steps of this implementation are the same as that in original adaptive method [36] which would be briefly described in this section. The main difference from the original adaptive method in [36] is that the proposed error estimator is used in contact condition reevaluation process allowing to update the reduced system more efficiently.…”

Section: Automatic Size Update With Error Estimatormentioning

confidence: 99%

“…To overcome some of the above challenges, the adaptive CMS method was developed [36,37] that allowing the set of static modes update adaptively according to the varying contact conditions on the interface during the on-line computation. This adaptivity can lead to a considerable computational saving for jointed structures with micro-slip motions.…”

Section: Introductionmentioning

confidence: 99%

“…Although the original adaptive method works very well, there is still room for improvement. The original adaptive method [36] includes all the static modes associated with the stick-slip nodes on the contact interface. Many of these stick-slip nodes are actually in a sticking dominated mode.…”

Section: Introductionmentioning

confidence: 99%

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On an improved adaptive reduced-order model for the computation of steady-state vibrations in large-scale non-conservative systems with friction joints

et al. 2020

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Joints are commonly used in many largescale engineering systems to ease assembly, and ensure structural integrity and effective load transmission. Most joints are designed around friction interfaces, which can transmit large static forces, but tend to introduce stick-slip transition during vibrations, leading to a nonlinear dynamic system. Tools for the complex numerical prediction of such nonlinear systems are available today, but their use for large-scale applications is regularly prevented by high computational cost. To address this issue, a novel adaptive reduced-order model (ROM) has recently been developed, significantly decreasing the computational time for such high fidelity simulations. Although highly effective, significant improvements to the proposed approach is presented and demonstrated in this paper, further increasing the efficiency of the ROM. An energy-based error estimator was developed and integrated into the nonlinear spectral analysis, leading to a significantly higher computational speed by removing insignificant static modes from the stuck contact nodes in the original reduced basis, and improving the computational accuracy by eliminating numerical noise. The effectiveness of the new approach was shown on an industrial

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Section: Adaptive Transformational Matrixmentioning

confidence: 99%

Section: Error Estimatormentioning

confidence: 99%

Section: Automatic Size Update With Error Estimatormentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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On an improved adaptive reduced-order model for the computation of steady-state vibrations in large-scale non-conservative systems with friction joints

et al. 2020

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An extended energy balance method for resonance prediction in forced response of systems with non-conservative nonlinearities using damped nonlinear normal mode

et al. 2020

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The dynamic analysis of systems with nonlinearities has become an important topic in many engineering fields. Apart from the forced response analyses, nonlinear modal analysis has been successfully extended to such non-conservative systems thanks to the definition of damped nonlinear normal modes. The energy balance method is a tool that permits to directly predict resonances for a conservative system with nonlinearities from its nonlinear modes. In this work, the energy balance method is extended to systems with non-conservative nonlinearities using the concept of the damped nonlinear normal mode and its application in a full-scale engineering structure. This extended method consists of a balance between the energy loss from the internal damping, the energy transferred from the external excitation and the energy exchanged with the non-conservative nonlinear force. The method assumes that the solution of the forced response at resonance bears resemblance to that of the damped nonlinear normal mode. A simplistic model and full-scale structure with dissipative nonlinearities and a simplistic model showing self-excited vibration are tested using the method. In each test case, resonances are predicted efficiently and the computed force-amplitude curves show a great agreement with the forced responses. In addition, the self-excited solutions and isolas in forced responses can be effectively

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Theoretical dynamic reduction for steady-state nonlinear vibration responses of complex jointed structures having hysteretic contact behavior

Wang

2023

International Journal of Non-Linear Mechanics

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An adaptive component mode synthesis method for dynamic analysis of jointed structure with contact friction interfaces

Cited by 21 publications

References 21 publications

On an improved adaptive reduced-order model for the computation of steady-state vibrations in large-scale non-conservative systems with friction joints

On an improved adaptive reduced-order model for the computation of steady-state vibrations in large-scale non-conservative systems with friction joints

An extended energy balance method for resonance prediction in forced response of systems with non-conservative nonlinearities using damped nonlinear normal mode

Theoretical dynamic reduction for steady-state nonlinear vibration responses of complex jointed structures having hysteretic contact behavior

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