Identification of damage in a ship hull sandwich plate by natural frequency

Ariesta, Rizky Chandra; Zubaydi, Achmad; Ismail, Abdi; Tuswan,; Al-Syachri, Mohammad Zircham

doi:10.1088/1757-899x/1034/1/012012

Cited by 8 publications

(4 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This result was under the research conducted by [13]. Vibration responses of EMA would be smaller than FEA on the same trend data [14]. The most noticeable theory of sandwich material is that the faceplate will change behavior as a component that transfers the load caused by the hammer force to the core material.…”

Section: Comparison Damage Evaluation Of Sandwich Materials Using Fea...mentioning

confidence: 60%

Sustainable ship health monitoring for side hull structure using the random decrement method

Ariesta,

Zubaydi,

Sukma

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

View full text Add to dashboard Cite

Damage detection of sandwich material used in the ship structure has attracted more awareness to providing diagnostics for Structural Health Monitoring (SHM) systems. This study reported damage identification of sandwich material based on the Random Decrement Method (RDM) using experimental and numerical approaches. The investigation was assumed by modeling the material in two conditions which are undamaged and damaged conditions to analyze the dynamic behaviors of vibration response. The results of the vibration response obtained a similar trend between undamaged and damaged material conditions. Furthermore, a decreased stiffness occurs due to damage to the sandwich plate. Therefore, the random decrement method can be selected as a detection method for identifying damage with fair accuracy and obtaining sustainability for the ship structure.

show abstract

Section: Comparison Damage Evaluation Of Sandwich Materials Using Fea...mentioning

confidence: 60%

Sustainable ship health monitoring for side hull structure using the random decrement method

Ariesta,

Zubaydi,

Sukma

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

View full text Add to dashboard Cite

show abstract

“…The structural assessments resulting from the sandwich application on the ramp door are then investigated in terms of static and dynamic behaviour [15,16]. Numerical and experimental methods for assessing the structural integrity of hull sandwich panels have also been developed [17,18].…”

Section: Schematic Overview Of Ship Structural Assessmentmentioning

confidence: 99%

Dynamic response evaluation due to construction system modification of 155 m barge ship using finite element method

Tuswan

Amiruddin

Yudo

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

View full text Add to dashboard Cite

The application of lightweight sandwich material as a ship structure was an innovative breakthrough that provided an excellent strength-to-weight ratio. In the sandwich application process, the proposed structural design and scantling must be designed according to the equivalent strength requirement with low weight compared to the existing structure. The research aims to evaluate the dynamic response of different construction systems of barge ships due to applying various hybrid sandwich types in the deck, ship hull, and bottom structures using the current Lloyd’s Register standard. A total of three proposed construction systems: longitudinal, transverse and mixed framing systems, are investigated under different plate configurations, material types, and scantling sizes. The numerical-based finite element approach is used to evaluate dynamic properties of natural frequency and mode shape using free vibration analysis at low mode numbers. The finite element result from the dynamic characteristic and weight reduction estimation between the existing structure and the proposed construction systems under various plate configurations, material types, and scantling sizes is evaluated to determine the application of lightweight sandwich panels in the barge structure.

show abstract

“…Adjustment of the mode value and natural frequency value was verifi ed using numerical results to determine the frequency and location of the mode. The mode selection was matched by observing the vibration response of the FRF obtained from the experiment [18].…”

Section: Experimental Modal Analysis Procedures / Postupak Eksperimen...mentioning

confidence: 99%

Identification of Damage Size Effect of Natural Frequency on Sandwich Material using Free Vibration Analysis

Ariesta¹,

Zubaydi²,

Ismail³

et al. 2022

Naše more

Self Cite

View full text Add to dashboard Cite

One of the most innovative developments in the field of advanced materials is sandwich materials. Sandwich material applications need standard requirements to be applied to marine structures, especially on ship construction. Sandwich material research is conducted on a laboratory scale to obtain the appropriate material composition in its development. In the process of developing this material, the material can be damaged. Most damage occurs in the core material, which results in difficulties in the identification process. This study compares damage identification methods based on free vibration analysis on the side sandwich plate of the ship’s hull. Damage-based identification is carried out to determine the response of vibration to the damage that occurs. Moreover, the method in this research uses a numerical approach and experimental vibration measurement. Numerical modelling is used to determine the appropriate boundary conditions and is shifted in experimental measurement. Damage modelling assumes that the material experiences core failure with a numerous variation model. Quantification of damage on the core correlates with natural frequency reduction due to a decrease in the stiffness of the sandwich material. Hence, the difference in the deviation value is used to determine the accuracy of damage identification.

show abstract

Identification of damage in a ship hull sandwich plate by natural frequency

Cited by 8 publications

References 16 publications

Sustainable ship health monitoring for side hull structure using the random decrement method

Sustainable ship health monitoring for side hull structure using the random decrement method

Dynamic response evaluation due to construction system modification of 155 m barge ship using finite element method

Identification of Damage Size Effect of Natural Frequency on Sandwich Material using Free Vibration Analysis

Contact Info

Product

Resources

About