A comparative study of the vibrational effects on the boundary conditions of a slender beam

Bahari, A. R.; Yunus, M. A.; Rani, M. N. Abdul; Mirza, W. I. I. Wan Iskandar; Haizuan, A R

doi:10.1063/1.5085997

Cited by 3 publications

(1 citation statement)

References 10 publications

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“…For a lightly damped condition, the modal decomposition considered the undamped system. For an undamped free vibration analysis, the damping and applied external forces were ignored and the equation of motion [28] is represented by Eq. ( 2).…”

Section: Figure 5 Mass-spring-damper Systemmentioning

confidence: 99%

Modal testing and modelling the dynamic characteristics of a plate with bolted joints

Bahari

Yunus

Rani

et al. 2021

JMES

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Modelling the dynamic characteristics of the bolted joints in a complex assembled structure with a high accuracy is very challenging due to the assumptions and uncertainties in the input data of the FE model. In this paper, the identification of the dynamic characteristics of the bolted joints structure using the CBUSH element connector is proposed. Modal testing and normal modes analysis are conducted on a thin plate assembled structure with bolted joints. In the simulation work, the CBUSH element connector is employed and the stiffness coefficient for six degrees of freedom is computed based on four flexibility formulae. The predicted natural frequencies and their corresponding mode shapes are compared against the results of the experimental work. A good agreement of the FE model is achieved by using the coefficient of stiffness as represented in the Swift flexibility formula. The study justifies that the dynamic characteristics of the bolt joints could be accurately modelled by using the CBUSH element connector. The obtained findings provided an alternative approach to modelling the dynamic characteristics of a thin plate assembled structure with bolted joints.

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Section: Figure 5 Mass-spring-damper Systemmentioning

confidence: 99%

Modal testing and modelling the dynamic characteristics of a plate with bolted joints

Bahari

Yunus

Rani

et al. 2021

JMES

Self Cite

View full text Add to dashboard Cite

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Finite element model updating on structural components of simplified model of aircraft pylon

Bahari¹,

Yunus²,

Rani³

et al. 2022

Proceeding of 2nd International Colloquium on Computational &Amp; Experimental Mechanics (ICCEM 2021)

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Investigation on the nonlinear dynamic response of a mass-spring system

Bahari

Yunus

Rani

et al. 2020

IOP Conf. Ser.: Mater. Sci. Eng.

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This paper investigates the nonlinear dynamic response of a single-degree-of-freedom mass-spring system. The experimental modal analysis is carried out by three typical types of spectral testing which are burst random, sine testing and periodic chirp excitation to achieve the objective of this study. The experimental data from the burst random excitation is used to identify the natural frequency of the system. The nonlinear dynamic response of the system is detected by means of using the sine testing and periodic chirp excitation. However, from the sine testing, the results showed that the variations of the maximum peak of the vibration acceleration based on the different levels of excitation voltage that were applied to the input shaker. It was also found that the displacement values obtained from the periodic chirp excitation showed an inconsistent linear increment with the excitation level that applied to the mass-spring system.

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A comparative study of the vibrational effects on the boundary conditions of a slender beam

Cited by 3 publications

References 10 publications

Modal testing and modelling the dynamic characteristics of a plate with bolted joints

Modal testing and modelling the dynamic characteristics of a plate with bolted joints

Finite element model updating on structural components of simplified model of aircraft pylon

Investigation on the nonlinear dynamic response of a mass-spring system

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