[논문]SCM440강에 대한 마찰 마멸의 기본적 거동해석

변재영; 이창주; 장준수; 최원식

doi:10.14775/ksmpe.2016.15.1.074

Abstract ▼ AI-Helper

Due to the increased use of power caused by industrial development, the importance of improving wear and friction in the contact region has emerged. Except for some parts, such as brakes or clutches and friction, seals and precision mechanical parts (e.g., pistons, bearings, valves, and cams) are im...

Due to the increased use of power caused by industrial development, the importance of improving wear and friction in the contact region has emerged. Except for some parts, such as brakes or clutches and friction, seals and precision mechanical parts (e.g., pistons, bearings, valves, and cams) are important engine components that require low friction characteristics. In this study, the experimental method used to determine the friction characteristics was based on the type of rpm with the pin-on-disc test device, the element analysis program ANSYS was used to analyze the surfaces of the two metals rubbing together, and physical formation FEM models were used to study the properties and wear. The friction coefficient of variation was unsafe, but at the start of wear, it converged to a stable friction coefficient that increased after a certain slip away.

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가설 설정

1. The friction coefficient of variation unsafe, but at the start of wear converge to a stable friction coefficient increases after a certain slip away. The coefficient of friction was hardest at 105rpm and reduced to 143, 67, 29rpm order.
3. The Specific Wear Rate is showed a tendency to decrease as the sliding speed increases.
4. The farther from the center of rotation on the contacts of the Pin and Disc, the contact pressure and friction stress was relatively large. Wear in the center of the contact area on the Pin and Disc was relatively large.

제안 방법

Experimental tests were in non-lubricating state Gave a load of 20N 143rpm, 105rpm, 67rpm, and 29rpm, every five minutes in the "room temperature" was measured the friction coefficient for treatments call now using the precision electronic scale to measure the amount of abrasion of the test piece.
In this study, the experimental method used to determine the friction characteristics based on the type of rpm with the Pin on disc test device, element analysis program ANSYS is used to analyze the surface of the two metals rub together, through the physical formation FEM models are used to study the properties and wear.^[2-5]
Pin on disc test was used for simulation analysis program "ANSYS" to generate analytical models, models grid generation, interpretation definition sets, target analyzes were performed using a four-step analysis.
] is the volume of material wear, L [m] is the distance friction (sliding distance), H [Pa] is the material hardness, W [N] is the vertical load of the material, K is the wear factor (coefficient). Wear coefficients derived from the experimental method Pin and Disc through Archard wear equation in this study, and to investigate the relationship between rpm. To predict the depth of the wear of friction on the surface of the disc used ANSYS W/B.

이론/모형

Pin on disc test was used for simulation analysis program "ANSYS" to generate analytical models, models grid generation, interpretation definition sets, target analyzes were performed using a four-step analysis. The analysis model is generated using ANSYS / CAE, ANSYS / Structural Transient solver is used to analyze the structure depends on the time performed on the Pin on disc test to disk element analysis (Finite Method -Element).

성능/효과

2. Amount of wear and the wear coefficient corresponding to the distance of the Disc is showed the maximum value at 29rpm according to the increase of the rpm value exhibited a tendency to decrease. The coefficient of friction and wear factor is proportional to the 143~105rpm was the 105~29rpm was a tendency that is inversely proportional.

참고문헌 (5)

Smetsers, H. M. A., FE analyses of Pin on Disc tests to analyze hybrid CVT behavior, 2007.
Bortoleto, E.M., Rovani, A.C., Seriacopi, V., Profito, F.J., Zachariadis, D.C., Machado, I.F., Sinatora, A. and Souza, R.M., "Experimental and numerical analysis of dry contact in the pin on disc test," Wear, Vol. 301, No. 1, pp. 19-26, 2013.

상세보기
Wei, D., Kim, J. and Kim, Y., "Wear Properties of Nuclear Graphite IG-110 at Elevated Temperature," Trans. Korean Soc. Mech. Eng. A, Vol. 38, No, 5, pp. 469-474, 2014.

원문보기 상세보기
Kanavalli, B., "Application of User Defined Subroutine UMESHMOTION in ABAQUS for Simulating Dry Rolling/Sliding Wear," A Thesis of Doctor, Royal Institute of Technology, Sweden, 2006.
Hegadekatte, V., Huber, N. and Kraft, O., "Modeling and simulation of wear in a pin on disc tribometer," Tribology Letters, Vol. 24, No. 1, pp. 51-60, 2006.

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연합인증

SCM440강에 대한 마찰 마멸의 기본적 거동해석
Fundamental Behavior Analysis of SCM440 Steel on Friction and Wear 원문보기

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SCM440강에 대한 마찰 마멸의 기본적 거동해석 Fundamental Behavior Analysis of SCM440 Steel on Friction and Wear 원문보기

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SCM440강에 대한 마찰 마멸의 기본적 거동해석
Fundamental Behavior Analysis of SCM440 Steel on Friction and Wear 원문보기

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