Adi Syaeful Amry Suherman, . (2026) OPTIMASI DESAIN PADA BUCKET LINK EXCAVATOR KELAS 20 TON MENGGUNAKAN METODE ELEMEN HINGGA. Skripsi thesis, Universitas Pembangunan Nasional Veteran Jakarta.
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Abstract
The bucket link is a structural component of an excavator bucket linkage system that is subjected to high loading, requiring a design with high strength and low weight. This study aims to optimize the design of a bucket link for a 20-ton excavator using the Finite Element Analysis (FEA) method and topology optimization based on the Solid Isotropic Material with Penalization (SIMP) approach in ANSYS Mechanical. AISI 4140 and AISI 4340 materials were compared based on mass, von Mises stress, and safety factor. The optimization results showed that the optimum configuration for AISI 4140 was achieved at a 74.57% percent-to-retain with a mass of 42.11 kg, while AISI 4340 reached the optimum configuration at an 82.15% percent-to-retain with a mass of 35.91 kg. After considering manufacturing constraints, the final masses became 41.27 kg for AISI 4140 and 38.52 kg for AISI 4340, with von Mises stresses of 180.79 MPa and 251.10 MPa, and safety factors of 3.61 and 4.07, respectively. Compared with the initial design, the final optimized design reduced the mass by 17.86 kg (31.68%), from 56.38 kg to 38.52 kg. Based on the results, AISI 4340 can be considered a viable alternative material for the bucket link, as it provides a significantly lower mass while maintaining comparable structural performance.
| Item Type: | Thesis (Skripsi) |
|---|---|
| Additional Information: | [No.Panggil: 2210311002] [Pembimbing: Nicky Yongkimandalan] [Penguji 1: Armansyah] [Penguji 2: Sigit Pradana] |
| Uncontrolled Keywords: | bucket link, excavator, topology optimization, finite element method |
| Subjects: | T Technology > TJ Mechanical engineering and machinery |
| Divisions: | Fakultas Teknik > Program Studi Teknik Mesin (S1) |
| Depositing User: | ADI SYAEFUL AMRY SUHERMAN |
| Date Deposited: | 28 Aug 2026 01:23 |
| Last Modified: | 28 Aug 2026 01:23 |
| URI: | http://repository.upnvj.ac.id/id/eprint/53069 |
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