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Ionel Rusa, Cornel Marin and Marius Baidoc

utilajelor dinamice vol. 1 – Mobil Industrial AG – Piteşti (2011) [5] Vibration Calibration Technique and basics of Vibration Measurement - Torben R. Licht – Singapore 2011 [6] An Introduction to Vibration Analysis Theory and Practice [7] Automated machinery maintenance – Bill Powel, Tony Burnet [8] Bearing vibration analysis – Connected Technology Center - Training modules [9] S.C. VIBRO SYSTEM S.R.L. www.vibrosystem.ro - Global Relative Vibration Level Bulletin No. 1. [10] S.C. VIBRO SYSTEM S.R.L. www.vibrosystem.ro - Global

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Ionel Rusa, Cornel Marin and Marius Baidoc

References [1] Ionel Rusa, Cornel Marin, Marius Baidoc. "New Measurements Results Achieve for Proactive Maintenace with Vibro-Expert Diagnosis System", Scientific Bulletin of Valahia University - Materials and Mechanics, 2017. [2] * * * Mentenanţa utilajelor dinamice vol . 1 - Mobil Industrial AG - Piteşti (2011) [3] Torben R. Licht , Vibration Calibration Technique and basics of Vibration Measurement -- Singapore 2011. [4] Ionel Rusa, Cornel Marin, Marius Baidoc, " Case Study Regarding

Open access

Ionel Rusa and Cornel Marin

REFERENCES [1] Introducere în vibrații - Ref. Doc. MI 119 – Notă tehnică / Mobil Industrial – Pitești (2013) www.mobilindustrial.ro [2] Mentenanța utilajelor dinamice vol. 1 – Mobil Industrial AG – Pitești (2011) www.mobilindustrial.ro [3] Vibration Calibration Technique and basics of Vibration Measurement - Torben R. Licht – Singapore 2011 [4] Vibration Monitoring Predictive Maintenance, King, Joseph, W., Industrial Fuel Conference, Purde university 1988 [5] An Introduction to Vibration Analysis Theory and Practice, de Silva

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Ivona Petre, Aurora Anca Poinescu, Adrian Catangiu and Simona Mihai

Abstract

With the development of industry have made efforts to improve the performance of braking systems of motor vehicles on public roads. The choice of materials used for coupling brake system involved the development of new materials that meet safety requirements in circulation. During braking of any vehicle, due to the friction created between the disk and pad, temperature rise occurs with negative effects on the process of slowing down the vehicle. Mechanical and thermal stress being put on the brakes is very high. Due to overheating, brake discs and pads may warp or crack, and the material they are made may their change its structure. These defects give rise to vibrations and noise during braking, to reduce the coefficient of friction, reduce the effectiveness of the braking mechanism. This paper proposes a study regarding the thermal stresses effects of brake mechanism on the disc material of a car Dacia Logan. It proposes a theoretical model to calculate the temperature that occurred during the operation of the braking system and experimental analysis on the influence of temperature on the brake disc material.

Open access

Mirela Popescu and Bela Varga

(2006) 251-256 [4] Fan G. J., Choo H., Liaw, Lavernia E. J.: Plastic deformation and fracture of ultrafine-grained Al-Mg alloys with a bimodal grain size distribution Acta Materialia 54 (2006) 1759-1766 [5] Otarawanna S. , Casting of aluminium alloys, Fundamentals of Aluminium Metallurgy: Production, Processing and Applications, Edited by Roger Lumley in Oxford, U.K., 2012. [6] Popescu (Drăgoiu) M, Varga B , Structures of Aluminum Base Alloys Solidified by Vibrations- Advanced Material Research, vol 1128, 2015, pp 88

Open access

Mirela Popescu, Tibor Bedo and Bela Varga

. DE-FC07-97ID13559 [15] Mirela Popescu, Bela Varga: Structures of Aluminium Base Alloys Solidified by Vibrations, in Advanced Materials Research, vol. 1128, Advanced Technologies of Materials Processing, 2015, pp. 88-97.