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Research into the possible causes of squealing brake-drumsBombek, Gorazd ; Pevec, Miha, 1985 ; Vranešević, DarkoThis paper presents a problem-solving procedure regarding brake-drum noise issues performed by engineers within a short time period and additional measures to be taken for avoiding similar issues in ... the future. Cimos TAM Ai company is a member of Cimos Group, which is a component producer in the automotive industry. We have taken the production of the rear brake-drums during the phase of the car manufacturing (transfer of production). Soon afterthe instigation of this production, the customer reported squealing issues with the brake-drums. No detailed information was received about the issue except that it occurred on new cars during everyday operation. It was our goal to find the root cause, fix the issue and take some preventive actions. Research was based on comparing the Cimos brake-drum (B) with the brake-drum of previous supplier (A). The research was focused on resonant frequency of the brake-drum as the most likely parameter connected to the squealing. First the natural frequency of drums A and B was determined by impact-hammer test. Then a numerical simulation was carried out with the goal of detecting the most problematic surface of the drum for causing the squealing. A weakness was found in the brake-drum design where no thickness ortolerance was specified at the critical area, and large deviations existed between the finished brake-drums. The problem was solved by changing the machining parameters. Besides solving the noise problem, an in-depth investigation was conducted into the gray cast-iron modulus of elasticity, in order to find a representative value for those small deformations occurring incases dealing with noise-emission issues. This value proved to be higher than in the case of larger deformations as considered during mechanical and temperature behavior simulations.Vir: Journal of vibration and control : JVC. - ISSN 1077-5463 (Vol. 20, no. 9, Jul. 2014, str. 1271-1278)Vrsta gradiva - članek, sestavni del ; neleposlovje za odrasleLeto - 2013Jezik - angleškiCOBISS.SI-ID - 17432086
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vir: Journal of vibration and control : JVC. - ISSN 1077-5463 (Vol. 20, no. 9, Jul. 2014, str. 1271-1278)
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
Baze podatkov, v katerih je revija indeksirana
Ime baze podatkov | Področje | Leto |
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Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
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Bombek, Gorazd | 19096 |
Pevec, Miha, 1985 | 31659 |
Vranešević, Darko | ![]() |
Vir: Osebne bibliografije
in: SICRIS
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