Jamil, Mohammad Rafiul (2026) Perancangan Alat Hydrostatic Test untuk Menguji Kebocoran Komponen Piston Valve pada Silinder Piston Blade Lift Bulldozer Komatsu (Studi Kasus di Pt. United Tractors Pandu Engineering Plant Rbpm-Balikpapan). Diploma thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Pengujian kebocoran piston valve merupakan salah satu tahapan penting dalam proses quality control untuk memastikan komponen mampu menahan tekanan kerja sesuai spesifikasi. Penelitian ini bertujuan merancang sistem hidrolik berupa hydraulic power pack sebagai sumber tenaga pada alat hydrostatic test yang digunakan untuk menguji kebocoran piston valve silinder blade lift bulldozer Komatsu tipe D85, D155, dan D375. Perancangan dilakukan berdasarkan kebutuhan tekanan kerja maksimum sebesar 300 bar dengan proof pressure 450 bar serta kapasitas fluida sistem sebesar 63 L. Metode perancangan diawali dengan penentuan kebutuhan debit aliran, perhitungan kecepatan fluida, analisis head loss mayor dan minor, serta perhitungan pump head menggunakan persamaan Bernoulli. Hasil perhitungan tersebut digunakan sebagai dasar dalam pemilihan pompa hidrolik, motor listrik, tangki hidrolik, pipa, flexible hose, katup, pressure gauge, dan komponen pendukung lainnya. Selain itu, dilakukan analisis kekuatan material terhadap tekanan uji menggunakan Persamaan Lamé untuk memastikan komponen utama mampu menahan tekanan yang bekerja selama proses pengujian. Hasil perancangan menunjukkan bahwa sistem hidrolik yang dirancang mampu memenuhi kebutuhan tekanan dan debit sesuai spesifikasi pengujian sehingga diharapkan dapat menghasilkan proses hydrostatic test yang aman, stabil, andal, serta mendukung peningkatan efisiensi proses pengujian kebocoran piston valve di lingkungan industri.
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Leakage testing of piston valves is an essential stage in the quality control process to ensure that components can withstand the specified operating pressure. This study aims to design a hydraulic system in the form of a hydraulic power pack as the power source for a hydrostatic testing machine used to evaluate the leakage performance of blade lift cylinder piston valves for Komatsu D85, D155, and D375 bulldozers. The design was carried out based on a maximum operating pressure of 300 bar, a proof pressure of 450 bar, and a hydraulic fluid capacity of 63 L. The design procedure began with determining the required flow rate, calculating the fluid velocity, evaluating major and minor head losses, and determining the required pump head using the Bernoulli equation. The calculation results were then used as the basis for selecting the hydraulic pump, electric motor, hydraulic reservoir, piping, flexible hose, valves, pressure gauge, and other supporting components. In addition, the structural strength of the main component was verified using Lamé's equation to ensure that it could safely withstand the applied test pressure during the hydrostatic testing process. The design results indicate that the proposed hydraulic system is capable of meeting the required pressure and flow rate specifications, thereby providing a safe, stable, and reliable hydraulic power source while improving the efficiency of piston valve leakage testing in industrial applications.
| Item Type: | Thesis (Diploma) |
|---|---|
| Uncontrolled Keywords: | hydrostatic test, sistem hidrolik, piston valve, pressure vessel, Silinder piston, hydrostatic test, hydraulic system, piston valve, pressure vessel, Cylinder piston |
| Subjects: | T Technology > TJ Mechanical engineering and machinery > TJ840.A2+ hydraulic machinery T Technology > TS Manufactures > TS283 Pressure vessels. |
| Divisions: | Faculty of Vocational > Mechanical Industrial Engineering (D4) |
| Depositing User: | Mohammad Rafiul Jamil |
| Date Deposited: | 31 Jul 2026 07:03 |
| Last Modified: | 31 Jul 2026 07:03 |
| URI: | http://repository.its.ac.id/id/eprint/142396 |
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