CD Disertasi

Kaji Numerik Pengaruh Temperatur Terhadap Tekanan Hidrodinamik Dan Ketebalan Lapisan Film Pada Journal Bearing Menggunakan Cpo Sebagai Lubricant

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ABSTRACT
Bearings are utilized to minimize friction between components during relative motion, aiming to tackle the prominent challenge faced by the industrial sector, which revolves around minimizing or preventing energy losses caused by friction. Friction is commonly defined as the resistive force that arises when two surfaces move in relation to each other. Journal bearings specifically operate by supporting radial loads, which are forces acting perpendicular to the axis of the rotating shaft. Journal bearings are comprised of a rotating shaft connected to a cylindrical bearing within the housing. These two surfaces, the journal and bearing, are kept apart by a layer of liquid or gas lubricant. Hydrodynamic pressure, which plays a crucial role in the performance of journal bearings, is influenced by various factors such as speed, temperature, lubricant properties (such as viscosity and density), dynamic load, and other relevant variables. The magnitude of the workload is a critical factor that impacts the hydrodynamic pressure in journal bearings. The size of the workload directly influences the pressure that arises. In this study, numerical simulations were conducted to develop an algorithm that visualizes the pressure distribution and film coating on the contact surfaces. The finite difference method (FDM) was employed to solve the Reynolds equation, a widely-used equation for determining pressure distribution. The FDM enables the calculation of pressure distribution by discretizing the domain and approximating derivatives. The finite difference method (FDM) employed in this study utilizes a central-difference discretization scheme due to its superior accuracy in approximating the true values compared to other schemes. To examine the influence of temperature, variations in temperature were implemented to analyze their impact on the thickness of the lubricant film and the hydrodynamic pressure. The lubricant used in this investigation is CPO (Crude Palm Oil).
Keyword: Journal Bearing, CPO Lubricant, FDM, Temperature

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Informasi Detail

Judul Seri

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No. Panggil

1707113854

Penerbit

: .,

Deskripsi Fisik

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Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

1707113854

Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

TEKNIK MESIN

Info Detail Spesifik

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Pernyataan Tanggungjawab

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Versi lain/terkait

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