Results 121 to 130 of about 176 (165)
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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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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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The Effect of Grease on Brake Squeal
SAE Technical Paper Series, 2014<div class="section abstract"><div class="htmlview paragraph">SAE J2521 noise tests are conducted to examine the impact of shim and grease on brake squeal generation. The impact of adhesive (bonded) shim, clip-on shim and grease for noise generation are examined.
Hidetoshi Shimizu +3 more
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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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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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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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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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Nonlinear Brake Squeal Analysis
SAE Technical Paper Series, 2002<div class="htmlview paragraph">Brake squeal noise is a top warranty concernsmplaints for virtually all automotive companies. How to identify squeal frequencies and mode shapes is typically very challenging. The identification of potential squeal problems still rely heavily on experimental methods using inertia and chassis dynamometers or on-road
Yitzong (Jim) Chern +2 more
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Effect of Damping on Brake Squeal Noise
2007Brake squeal is one of the major issues in the design process of an automotive brake and the development of a robust procedure for a "squeal-free" design is still under investigation. This paper presents an experimental investigation on a beam on disc setup.
MASSI, Francesco, GIANNINI, Oliviero
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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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