Results 121 to 130 of about 177 (167)
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Brake squeal analysis by finite elements
International Journal of Vehicle Design, 1999<div class="htmlview paragraph">An approximate analysis method for brake squeal is presented. Using MSC/NASTRAN a geometric nonlinear solution is run using a friction stiffness matrix to model the contact between the pad and rotor. The friction coefficient can be pressure dependent.
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Journal of Sound and Vibration, 2006
The discomfort generated by the noise emission of braking systems in trains has aroused recently many studies on the mechanical modelling of brake noise in France. A theoretical and numerical discussion on the phenomenon of brake squeal is given in this paper in relation with some experimental data.
Lorang, Xavier +3 more
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The discomfort generated by the noise emission of braking systems in trains has aroused recently many studies on the mechanical modelling of brake noise in France. A theoretical and numerical discussion on the phenomenon of brake squeal is given in this paper in relation with some experimental data.
Lorang, Xavier +3 more
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Journal of Sound and Vibration, 2003
Disc brake squeal remains an elusive problem in the automotive industry. Since the early 20th century, many investigators have examined the problem with experimental, analytical, and computational techniques, but there is as yet no method to completely suppress disc brake squeal.
N.M. Kinkaid +2 more
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Disc brake squeal remains an elusive problem in the automotive industry. Since the early 20th century, many investigators have examined the problem with experimental, analytical, and computational techniques, but there is as yet no method to completely suppress disc brake squeal.
N.M. Kinkaid +2 more
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An Analysis of Disc Brake Squeal
SAE Technical Paper Series, 1978<div class="htmlview paragraph">A squeal model for a proprietary fixed caliper disc brake is proposed which includes mass and stiffness parameters and allows for variations in the contact configuration of the pad and piston. The predicted and observed trends in squeal behaviour are shown to be in good agreement.</div>
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SAE Technical Paper Series, 1997
<div class="htmlview paragraph">It is said that the disc brake squeal is the noise caused by the friction-induced vibration between pads and rotor, by which the brake assembly resonates. In this paper, the forces on the pads and the accelerations of the brake were measured, and their results were discussed by the correlation of them. As a result,
Toshitsugu Suzuki +4 more
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<div class="htmlview paragraph">It is said that the disc brake squeal is the noise caused by the friction-induced vibration between pads and rotor, by which the brake assembly resonates. In this paper, the forces on the pads and the accelerations of the brake were measured, and their results were discussed by the correlation of them. As a result,
Toshitsugu Suzuki +4 more
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On the origin of disk brake squeal
International Journal of Vehicle Design, 2009It is commonly accepted by engineers and scientists working in the field of brake noise, that squeal in a disk brake is initiated by an instability due to the friction forces leading to self-excited vibrations. The self-excited brake system then oscillates, reaching a limit cycle. Popp et al.
Utz Von Wagner, Stefan Schlagner
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Bifurcation Analysis for Brake Squeal
ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis, Volume 2, 2010This article presents a perturbation approach for the bifurcation analysis of MDoF vibration systems with gyroscopic and circulatory contributions, as they naturally arise from problems involving moving continua and sliding friction. Based on modal data of the underlying linear system, a multiple scales technique is utilized in order to find equations ...
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Journal of Sound and Vibration, 2011
Brake squeal has become an increasing concern to the automotive industry because of warranty costs and the requirement for continued interior vehicle noise reduction. Most research has been directed to either analytical and experimental studies of brake squeal mechanisms or the prediction of brake squeal propensity using finite element methods.
S. Oberst, J.C.S. Lai
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Brake squeal has become an increasing concern to the automotive industry because of warranty costs and the requirement for continued interior vehicle noise reduction. Most research has been directed to either analytical and experimental studies of brake squeal mechanisms or the prediction of brake squeal propensity using finite element methods.
S. Oberst, J.C.S. Lai
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A Mechanism of Disc-Brake Squeal
SAE Technical Paper Series, 1977<div class="htmlview paragraph">Further results, obtained from a pin-disc system, are presented which support the theory that the generation of squeal noise in disc-brakes is caused by a geometrically induced or kinematic constraint instability. The unstable regions are shown to be dependent on the coefficient of friction between the interacting ...
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Experimental Research on Brake Squeal
2011Since many years experimental researches have been performed in order to get an insight into the issue of brake squeal. This work presents an innovative test setup for analyzing friction-excited vibrations and squeal triggering mechanisms. The investigated brake system showed brake squeal issues at certain operating points.
Daniel Wallner, Stefan Bernsteiner
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