Sandi, Eriky Fery (2026) Redesain End Carriage Traveler untuk Inspeksi Jembatan Raja Haji Fisabilillah Menggunakan Metode Finite Element Analysis (FEA). Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
End carriage traveler merupakan komponen struktural pada sistem inspeksi Jembatan Raja Haji Fisabilillah yang berfungsi menopang dan mengarahkan pergerakan peralatan inspeksi. Hasil inspeksi menunjukkan adanya ketidaksesuaian antara drawing teknik dan hasil fabrikasi, terutama ketidaksejajaran Main Plate Connector dengan Gear Box. Kondisi tersebut menyebabkan misalignment pada sistem poros, distribusi beban tidak merata, peningkatan tegangan, dan deformasi struktur. Penelitian ini mengevaluasi kinerja desain existing dan desain redesain menggunakan metode Finite Element Analysis (FEA) statik dengan material S235JR dan beban kerja 6 ton atau 58.860 N. Dua konfigurasi dianalisis, yaitu desain existing tanpa bushing/spacer dan desain redesain dengan penambahan bushing shaft pada shaft plate connector. Parameter yang dikaji meliputi tegangan von Mises dan total deformasi, disertai uji konvergensi mesh untuk memastikan kestabilan hasil simulasi. Hasil analisis menunjukkan bahwa desain existing mengalami deformasi pada plate connector sehingga simulasi FEA dapat digunakan sebagai alat evaluasi terhadap kondisi existing. Setelah dilakukan redesain, posisi plate connector menjadi lebih sejajar dan sesuai dengan kebutuhan drawing serta hasil fabrikasi. Dengan demikian, penambahan bushing terbukti mampu mengurangi deformasi pada plate connector, menurunkan pengaruh misalignment, mengurangi tegangan, serta meningkatkan keandalan end carriage traveler dalam mendukung kegiatan inspeksi jembatan.
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The end carriage traveler is a structural component of the Raja Haji Fisabilillah Bridge inspection system, serving to support and guide the movement of inspection equipment. Inspection results revealed discrepancies between the technical drawings and the fabricated assembly, specifically a misalignment between the main plate connector and the gearbox. This condition resulted in shaft system misalignment, uneven load distribution, increased stress, and structural deformation. This study evaluates the performance of both the existing design and a redesigned version using static Finite Element Analysis (FEA), assuming S235JR material and a working load of 6 tons (58,860 N). Two configurations were analyzed: the existing design (without bushings/spacers) and a redesigned version incorporating a shaft bushing at the plate connector shaft. Parameters assessed included von Mises stress and total deformation, accompanied by a mesh convergence test to ensure simulation stability. Analysis showed that the existing design experienced significant total deformation, demonstrating the simulation's effectiveness as a tool for evaluating the existing design. Following the redesign, the plate connector achieved proper alignment—consistent with drawing specifications and fabrication requirements—and deformation was minimized. Thus, the addition of the bushing proved effective in reducing plate connector deformation, mitigating the effects of misalignment, lowering stress levels, and enhancing the reliability of the end carriage traveler for bridge inspection operations.
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