Determination of Different Structures’ Materials Natural Frequencies using Fuzzy Logic System

,; Lashin, Maha M. A.; Saleh, Wafaa Shoukry; ,; Alrowais, Fadwa; ,

doi:10.35940/ijeat.b3641.029320

Cited by 6 publications

(2 citation statements)

References 15 publications

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“…The natural frequencies of the material depend on their mechanical characteristics i.e., mass and stiffness of the structure. The structure with higher stiffness and lighter mass is considered to have higher resonance modal frequencies value [27,28]. It can be confirmed from Table 2 that PLA-CCF has the maximum stiffness, while PLA has the minimum and PLA-SCF has intermediate stiffness.…”

Section: Calculation Of Mode Shape and Natural Frequenciesmentioning

confidence: 94%

Actuation Performance of Macro Fibre Composite (MFC) as Actuator in Vibration Reduction of Cantilever Beams

Rimašauskienė

Raza²,

MAHATO³

2023

mech

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This study proposes a vibration suppression technique that uses piezoelectric material to restrict the dynamic amplitudes of a cantilever beam. The finite element analysis (FEA) model of the cantilever is created and incorporated with Macro Fiber Composite (MFC8507-P2) in the ANSYS framework. A comparative study has been performed using three different types of materials i.e., Polylactic acid (PLA), PLA with Short Carbon Fibers (PLA-SCF Composite), and PLA with Continuous Carbon Fibers (PLA-CCF Composite), for the beam. An external disturbance causes the beam to vibrate, and the MFC8507-P2 patch provides a counter-force to the structure to reduce vibrations. The MFC8507-P2 patch is placed at an appropriate location on each beam to suppress vibration induced by the initial fundamental modes. Modal analysis has been performed to find the natural frequencies and the contribution of each mode to the overall response under dynamic loading conditions. Transient structural analysis is performed to observe the influence of the MFC8507-P2 patch on vibration amplitude with time. Furthermore, frequency response analysis has been performed to determine the impact of the MFC8507-P2 patch on the vibration amplitude of the natural modes. The vibration response has been measured at the tip of the beam and the simulation results validate that the vibration amplitude decreases as the applied voltage increases.

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Section: Calculation Of Mode Shape and Natural Frequenciesmentioning

confidence: 94%

Actuation Performance of Macro Fibre Composite (MFC) as Actuator in Vibration Reduction of Cantilever Beams

Rimašauskienė

Raza²,

MAHATO³

2023

mech

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“…A structure's natural frequency ( n  ) is important in structural vibration, showing a less damping force effect [3]. The geometry and material of the structure influence the natural frequency [4][5][6]. Moreover, the support type also affects the natural frequency.…”

Section: Introductionmentioning

confidence: 99%

Computational Study of Excitation Controlling Parameters Effect on Uniform Beam Deformation under Vibration

Lap-Arparat

Tuchinda

2023

IJE

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Understanding a structure's behavior is necessary for most applications, especially excitation in ultrasonic applications. Currently, ultrasonic devices are used in various fields and have an essential role in nondestructive testing (NDT). The structure's behavior must be concerned with achieving the best practice. The structural vibrational behavior depends on natural frequency and mode shape. This study attempted to determine the effect of influence parameters on shape deformation for designing the adequate excitation condition. In this study, the influence parameters of a uniform beam, including geometry, support condition, and material, were included to investigate their effect on the frequency, mode shape, and structural response. The result showed the significant influence of a structure's length and support condition on the mode frequency, dramatically decreasing mode frequency for extended installation and cantilever support. This study investigated the three common mode shapes revealed that the longitudinal bending shape dominated due to the loading direction. Therefore, the shape deformation of the structure is mainly governed by the external excitation source, and the high structural response is received by applying the excitation near the antinode position of the vibration. Nevertheless, the computational result showed a good agreement with the analytical validation with less than 1 % error. The study leads to understanding the vibration, which can be further used for either the effective sensor attachment or designing the vibration control of ultrasonic applications.

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An Experimental Study on the Dynamic Properties of 3D-Printed Structures with Different Layer Orientations

Raza,

Rimašauskienė,

Jūrėnas

et al. 2024

J. Vib. Eng. Technol.

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Determination of Different Structures’ Materials Natural Frequencies using Fuzzy Logic System

Cited by 6 publications

References 15 publications

Actuation Performance of Macro Fibre Composite (MFC) as Actuator in Vibration Reduction of Cantilever Beams

Actuation Performance of Macro Fibre Composite (MFC) as Actuator in Vibration Reduction of Cantilever Beams

Computational Study of Excitation Controlling Parameters Effect on Uniform Beam Deformation under Vibration

An Experimental Study on the Dynamic Properties of 3D-Printed Structures with Different Layer Orientations

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