Promaxon-D reinforced brake-pads to ameliorate the noise-vibration performance

Bhatt, Bhaskaranand; Kalel, Navnath; Darpe, Ashish K.; Bijwe, Jayashree

doi:10.1016/j.wear.2021.203808

Cited by 13 publications

(13 citation statements)

References 28 publications

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“…Brake vibrations are directly proportional to the damping property of materials. 29 , 30 , 44 , 45 Tables 5 and 6 show that the porosity, compressibility, and damping values were lower for reference pads than aramid/Zylon fiber-based pads. The damping performance order of brake pads was as follows: AF 1 (0.40) = Z 1 (0.40) > Z 6 (0.38) > Z 3 (0.34) > AP (0.33) > Ref (0.27).…”

Section: Resultsmentioning

confidence: 99%

“…The selected theme ingredient content (3 wt %) was based on the previous studies. 29 , 30 , 36 , 37 , 50 , 51 One more type of brake pad was developed without aramid/Zylon fibers (reference pad) for comparison. The detailed comparative noise and vibration studies were carried out, and the results are compiled and discussed in the subsequent sections.…”

Section: Introductionmentioning

confidence: 99%

“…Brake squeal is strongly associated with the natural frequencies of the key components of the brake system, i.e., the brake pad and disc. − For instance, Masoomi et al studied the role of thermoplastic elastomer (TPE) ingredients in friction materials (FMs), and the results suggested that damping properties can be strongly affected by TPE and the high content of TPE proved to be the best for noise reduction. Bhatt et al explored the potential of calcium silicate (commercially Promaxon-D) to ameliorate the brake noise and vibration (NV) performance. Results revealed that 20 wt % Promaxon-D in Cu-free brake pads proved to be the best for the overall NV performance.…”

Section: Introductionmentioning

confidence: 99%

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Suppression of Brake Noise and Vibration Using Aramid and Zylon Fibers: Experimental and Numerical Study

et al. 2022

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Aramid pulp/fiber is the most vital ingredient of brake friction material (FM) formulation. It is perpetually added to achieve quality brake pads/shoes and improve the overall friction and wear performance. Additionally, novel Zylon fibers have a superior property to aramid fibers. However, no studies give insights on their influence on brake noise and vibration (NV) performance. In the current work, a series of six different types of eco-friendly brake pads was developed. The first five contain aramid pulp, aramid short fibers, and Zylon fibers of different sizes (1, 3, and 6 mm) as the theme ingredients (3 wt %) by keeping the parent composition identical. Additionally, one more pad was developed that contains no aramid/Zylon fibers (i.e., reference pad). The pads were characterized for physical and mechanical properties. The damping and natural frequencies of pads were measured experimentally and numerically. All brake pads were evaluated for detailed NV performance by following the SAE J 2521 test schedule. In addition, numerical simulation was performed to validate the experimental brake squeal results. Results revealed that aramid/Zylon fiber-based pads improved the porosity, damping, and compressibility. Overall, brake noise and vibrations were improved for aramid/Zylon fiber-based pads by 1.2–1.5 dBA and 20–25%, respectively, compared to the reference pad. The complex eigenvalue analysis (CEA) proved that squeal was mainly influenced by the damping and density of the pad materials. Thus, aramid/Zylon fiber-based pads can effectively suppress the instability of the brake system and reduce the brake squeal propensity.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Suppression of Brake Noise and Vibration Using Aramid and Zylon Fibers: Experimental and Numerical Study

et al. 2022

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“…43 It has also been used as one of the components in triboactive materials (FMs). 44,45 In this research, the effects of DDGS, Mo, and Xonotlite on the structural and mechanical properties of PEEK composites are investigated for the first time. The main objective of this article is to explore the properties of PEEK matrix composites by adding these reinforcements to improve the mechanical, tribological, and wettability of PEEK.…”

Section: Introductionmentioning

confidence: 99%

“…Xonotlite is a crystalline, calcium silicate hydrate Ca 6 Si 6 O 17 (OH) mineral 43 . It has also been used as one of the components in triboactive materials (FMs) 44,45 …”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of engineered PEEK‐based composites for enhanced tribological and mechanical performance

Javaid

Dey

Matzke

et al. 2022

J of Applied Polymer Sci

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We report the synthesis and characterization of engineered PEEK‐based composites by using biochar (DDGS500—pyrolyzed Distiller's dried grains with soluble (DDGS)), metal (Mo), and PEEK‐ceramic (Xonotlite) as reinforcements. A systematic study was done to understand the effect of these additives on functional and mechanical properties. Initially, these composites were synthesized by hot pressing. Microstructure analysis of reinforcement powders by scanning electron microscopy (SEM). Detailed microstructure study of the composites showed that DDGS500 powder particulates were well dispersed within the PEEK matrix after the addition of 5 vol%. However, at higher concentration of 10 and 20 vol%, the particles segregated at the phase boundaries and PEEK rich cores were observed in the microstructure. Mo and Xonotlite particles were segregated at the phase boundaries even at 5 vol% concentration, which was more prominent at higher concentrations of 10 and 20 vol% reinforcements. Differential scanning calorimetry (DSC) showed lowering in melting point (Tm) and crystallization temperature (Tc) and increase in crystallization in all the composites. The addition of DDGS500 and Mo enhanced the plasticity and Ultimate Compressive Strength (UCS) (5 vol% additions of DDGS500 and Mo enhanced the UCS by 12.6% and 32.2%, respectively) of the composites whereas Xonotlite additions increased brittleness of the composites. The addition of DDGS500, PEEK‐Mo, and PEEK‐Xonotlite particulates lowered the wear rate until 10 vol% by several orders of magnitude and stabilized the friction coefficient (μ) versus distance profile. However, significant increase in wear rate at 20 vol% of Xonotlite was observed due to third body abrasion. All the composites showed hydrophobic behavior except PEEK‐20 vol% Xonotlite, which showed hydrophilic behavior with a decrease in contact angle as a function of time, which shows that Xonotlite can be a promising additive for increasing hydrophilicity of PEEK‐based composites for biomedical applications.

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The influence of the brake pad construction on noise formation, people’s health and reduction measures

Stojanović

Belhocine

Abdullah

et al. 2022

Environ Sci Pollut Res

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Promaxon-D reinforced brake-pads to ameliorate the noise-vibration performance

Cited by 13 publications

References 28 publications

Suppression of Brake Noise and Vibration Using Aramid and Zylon Fibers: Experimental and Numerical Study

Suppression of Brake Noise and Vibration Using Aramid and Zylon Fibers: Experimental and Numerical Study

Synthesis and characterization of engineered PEEK‐based composites for enhanced tribological and mechanical performance

The influence of the brake pad construction on noise formation, people’s health and reduction measures

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