Effect of hard particle grift size on friction coefficents and embedment of automotive braking system
The effect of hard particle grit size on friction coefficients and particle embedment of braking system was investigated using a model brake test rig. Silica sand grit sizes ranging from 180 - 355 ?m were used in drag and stop mode braking application and results were compared to the tests without t...
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2009
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Online Access: | http://eprints.utm.my/id/eprint/21024/1/MKAbdulHamid2009_EffectofHardParticleGriftSizeonFriction.pdf http://eprints.utm.my/id/eprint/21024/2/Kameil_%201-18.pdf http://eprints.utm.my/id/eprint/21024/ |
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my.utm.210242017-10-13T10:20:54Z http://eprints.utm.my/id/eprint/21024/ Effect of hard particle grift size on friction coefficents and embedment of automotive braking system Abdul Hamid, Mohd. Kamiel Stachowiak, G. W. T Technology (General) TJ Mechanical engineering and machinery The effect of hard particle grit size on friction coefficients and particle embedment of braking system was investigated using a model brake test rig. Silica sand grit sizes ranging from 180 - 355 ?m were used in drag and stop mode braking application and results were compared to the tests without the grit particles in order to determine the changes in friction coefficient (CoF) and the percentage of particle embedment. Sliding speeds of 4 m/s, 8 m/s, 10 m/s and 12 m/s at constant pressures of 0.6 MPa, 0.8 MPa and 1 MPa were applied during the tests. Results showed that the presence of hard particles and grit size has significant effect on the CoF values. The values of CoF tend to reduce when grit particles are present. However, CoF values increase with sliding speed and applied pressure. Wear debris and particle embedment of silica sand was analyzed using SEM and optical microscopy after the test. Particle embedment (PE) of 1- 2 % of the pad area was observed. Fragmentation of hard particle has occurred only at high applied pressures. Also correlation between PE and CoF values was found to be slightly an inverse relationship as small reduction of CoF values with higher percentage of PE was determined. Universiti Teknologi Malaysia 2009-12 Article PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/21024/1/MKAbdulHamid2009_EffectofHardParticleGriftSizeonFriction.pdf text/html en http://eprints.utm.my/id/eprint/21024/2/Kameil_%201-18.pdf Abdul Hamid, Mohd. Kamiel and Stachowiak, G. W. (2009) Effect of hard particle grift size on friction coefficents and embedment of automotive braking system. Jurnal Mekanikal (29). pp. 1-18. ISSN 0127-3396 |
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T Technology (General) TJ Mechanical engineering and machinery Abdul Hamid, Mohd. Kamiel Stachowiak, G. W. Effect of hard particle grift size on friction coefficents and embedment of automotive braking system |
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The effect of hard particle grit size on friction coefficients and particle embedment of braking system was investigated using a model brake test rig. Silica sand grit sizes ranging from 180 - 355 ?m were used in drag and stop mode braking application and results were compared to the tests without the grit particles in order to determine the changes in friction coefficient (CoF) and the percentage of particle embedment. Sliding speeds of 4 m/s, 8 m/s, 10 m/s and 12 m/s at constant pressures of 0.6 MPa, 0.8 MPa and 1 MPa were applied during the tests. Results showed that the presence of hard particles and grit size has significant effect on the CoF values. The values of CoF tend to reduce when grit particles are present. However, CoF values increase with sliding speed and applied pressure. Wear debris and particle embedment of silica sand was analyzed using SEM and optical microscopy after the test. Particle embedment (PE) of 1- 2 % of the pad area was observed. Fragmentation of hard particle has occurred only at high applied pressures. Also correlation between PE and CoF values was found to be slightly an inverse relationship as small reduction of CoF values with higher percentage of PE was determined. |
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Article |
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Abdul Hamid, Mohd. Kamiel Stachowiak, G. W. |
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Abdul Hamid, Mohd. Kamiel Stachowiak, G. W. |
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Abdul Hamid, Mohd. Kamiel |
title |
Effect of hard particle grift size on friction coefficents and embedment of automotive braking system |
title_short |
Effect of hard particle grift size on friction coefficents and embedment of automotive braking system |
title_full |
Effect of hard particle grift size on friction coefficents and embedment of automotive braking system |
title_fullStr |
Effect of hard particle grift size on friction coefficents and embedment of automotive braking system |
title_full_unstemmed |
Effect of hard particle grift size on friction coefficents and embedment of automotive braking system |
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effect of hard particle grift size on friction coefficents and embedment of automotive braking system |
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Universiti Teknologi Malaysia |
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2009 |
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http://eprints.utm.my/id/eprint/21024/1/MKAbdulHamid2009_EffectofHardParticleGriftSizeonFriction.pdf http://eprints.utm.my/id/eprint/21024/2/Kameil_%201-18.pdf http://eprints.utm.my/id/eprint/21024/ |
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13.18916 |