Studi Digitalisasi Monitoring Kekuatan Struktur Model Tongkang Akibat Kondisi Heeling Terhadap Variasi Pembebanan Secara Eksperimen

Taufiqurrahim, Tsaqif Khoiri (2021) Studi Digitalisasi Monitoring Kekuatan Struktur Model Tongkang Akibat Kondisi Heeling Terhadap Variasi Pembebanan Secara Eksperimen. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Kemajuan revolusi industri 4.0 menunjukkan perkembangan teknologi mengalami peningkatan yang signifikan. Perkembangan teknologi tersebut dapat diterapkan di dunia perkapalan sehingga memungkinkan untuk dilakukan monitoring struktur pada kapal secara real time. Sebagai penelitian awal monitoring kekuatan struktur pada kapal, penelitian ini bertujuan untuk mengetahui kekuatan model tongkang secara memanjang dan kekuatan model tongkang bagian tengah akibat kondisi heeling untuk kondisi muatan kosong dan muatan penuh. Studi kasus pada penelitian ini adalah model tongkang dengan panjang 120 cm, lebar 30,5 cm, dan tinggi 8,3 cm. Penelitian ini dilakukan dengan 2 metode analisis, yaitu analisis eksperimen dan analisis metode elemen hingga. Analisis metode elemen hingga dilakukan untuk validasi hasil eksperimen, yaitu memastikan bahwa hasil analisis eksperimen mendekati nilai sebenarnya. Analisis eksperimen diawali dengan pembuatan purwarupa model tongkang menggunakan material aluminium. Setelah itu dilakukan verifikasi ukuran utama, berat, dan sarat model tongkang untuk memastikan bahwa purwarupa model tongkang yang dihasilkan sesuai dengan yang telah didesain. Perhitungan tegangan pada analisis eksperimen menggunakan sensor strain gauge dan alat strain gauge indicator. Sensor strain gauge dipasang dibagian centerline pelat bottom untuk mengukur tegangan di bagian bottom model tongkang. Penentuan ukuran elemen pada analisis metode elemen hingga dilakukan dengan analisis konvergensi. Nilai tegangan yang dihasilkan menggunakan analisis eksperimen dan analisis metode elemen hingga cenderung menyerupai, secara keseluruhan simpangan dari hasil analisis metode elemen hingga dan analisis eksperimen dibawah 5%. Hasil tegangan terbesar pada kondisi muatan kosong terjadi di variasi heeling 10 derajat ke arah portside pada sensor II dengan nilai 0,632 MPa, Sedangkan pada kondisi muatan penuh tegangan terbesar terjadi di variasi heeling 10 derajat ke arah starboard pada sensor IV dengan nilai 2,661 MPa. Dari hasil Penelitian ini, perubahan tegangan bagian centerline model tongkang dipengaruhi oleh pembebanan yang diterapkan pada model tongkang. ================================================================================================ The progress of the industrial revolution 4.0 shows that technological developments have increased significantly. These technological developments can be applied in the world of shipping, making it possible to monitor structures on ships in real-time. As an initial study of monitoring the strength of the structure on the ship, this study purpose to determine the strength of the longitudinal barge model and the strength of the midship due to heeling conditions for empty and full load conditions. The case in this study is a barge model with a length of 120 cm, a beam of 30.5 cm, and a height of 8.3 cm. This research was conducted with 2 analytical methods, namely experimental analysis, and finite element method analysis. The finite element method analysis is carried out to validate the experimental results, which is to ensure that the experimental analysis results are close to the true value. The experimental analysis begins with the manufacture of a prototype barge model using aluminum material. After that, verification of the main size, weight, and draft of the barge model is carried out to ensure that the prototype barge model produced is by what has been designed. Calculation of stress in the experimental analysis using a strain gauge sensor and a strain gauge indicator. The strain gauge sensor is installed in the centerline of the bottom plate to measure the stress at the bottom of the barge model. Determination of element size in the finite element method analysis is carried out by convergence analysis. The stress values generated using experimental analysis and finite element method analysis tend to be similar. Overall, the error from the results of the finite element method analysis and experimental analysis is below 5%. The largest stress results in an empty load condition occur in a 10-degree heeling variation towards the portside on sensor II with a value of 0.632 MPa, while in a full load condition the largest stress occurs in a 10-degree heeling variation towards the starboard on the sensor IV with a value of 2,661 MPa. From the results of this study, the change in the stress on the centerline of the barge model is influenced by the load applied to the barge model.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Barge model, Heeling, Strain gauge, Experiment, Finite Element Method, Model tongkang, Eksperimen, Metode Elemen Hingga.
Subjects: V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM156 Naval architecture
V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM163 Hulls (Naval architecture)
Divisions: Faculty of Marine Technology (MARTECH) > Naval Architecture and Shipbuilding Engineering > 36202-(S1) Undergraduate Thesis
Depositing User: Tsaqif Khoiri Taufiqurrahim
Date Deposited: 05 Sep 2021 14:00
Last Modified: 05 Sep 2021 14:00
URI: https://repository.its.ac.id/id/eprint/91711

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