Steel and Composite Structures

  • 제19권4호
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  • Pages.939-952
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  • 2015
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  • 1229-9367(pISSN)
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  • 1598-6233(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Brass fillers in friction composite materials: Tribological and brake squeal characterization for suitable effect evaluation

  • 투고 : 2014.10.31
  • 심사 : 2015.03.23
  • 발행 : 2015.10.25
⟨ 이전 논문 다음 논문 ⟩

초록

In this paper, brake pad performance of two organic matrix composites namely, Sample 1 (contains no brass filler) and Sample 2 (contains 1.5% brass filler), is studied based on tribological and squeal noise behavior. In the first stage, a pin-on-disc tribometer is used to evaluate the frictional behavior of the two pads. On the following stage, these pads are tested on squeal noise occurrence using a drag-type brake dynamometer. From the two type of tests, the results show that; (i) brass fillers play a dual role; firstly as reinforcing element of the brake pad providing primary contact sites, and secondly as solid lubricant by contributing to the formation of a layer of granular material providing velocity accommodation between the pad and the disc; (ii) brass fillers contribute to friction force stabilization and smooth sliding behavior; (iii) the presence of small weight quantity of brass filler strongly contributes to squeal occurrences; (iv) there is close correlation between pin-on-disc tribometer and brake dynamometer tests in terms of tribological aspect.

키워드

참고문헌

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피인용 문헌

  1. Squealing characteristics of worn brake pads due to silica sand embedment into their friction layers vol.358-359, 2016, https://doi.org/10.1016/j.wear.2016.04.006
  2. Experimental investigation of the squeal characteristics in railway disc brakes 2018, https://doi.org/10.1177/1350650117754002
  3. Impact of brass contents on thermal, friction and wear properties of brake linings composites vol.19, pp.1, 2018, https://doi.org/10.1051/meca/2016083
  4. A Novel Numerical Method for Considering Friction During Pre-stressing Construction of Cable-Supported Structures pp.2093-6311, 2018, https://doi.org/10.1007/s13296-018-0078-y
  5. Effect of the Friction Block Shape of Railway Brakes on the Vibration and Noise under Dry and Wet Conditions pp.1547-397X, 2019, https://doi.org/10.1080/10402004.2018.1545954
  6. Effect of size and shape of copper alloys particles on the mechanical and tribological behavior of friction materials vol.21, pp.6, 2015, https://doi.org/10.1051/meca/2020079