Analysis of brake squeal noise using the finite‐element method: A parametric study

2006 ◽  
Vol 119 (5) ◽  
pp. 3384-3384
Author(s):  
Samir N. Y. Gerges ◽  
Mrio Trichs ◽  
Alessandro M. Balvedi
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Parametric Study ◽  
The Finite Element Method ◽  
Brake Squeal ◽  
Squeal Noise ◽  
Element Method

Analysis of brake squeal noise using the finite element method: A parametric study

2008 ◽  
Vol 69 (2) ◽  
pp. 147-162 ◽  
Author(s):  
Mário Trichês Júnior ◽  
Samir N.Y. Gerges ◽  
Roberto Jordan
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Parametric Study ◽  
The Finite Element Method ◽  
Brake Squeal ◽  
Squeal Noise ◽  
Element Method

Light duty automotive drum brake squeal analysis using the finite-element method

2021 ◽  
pp. 146442072110359
Author(s):  
Anderson L Dias ◽  
Rômulo do N Rodrigues ◽  
Roberto de A Bezerra ◽  
Pierre Lamary ◽  
Matheus HP Miranda
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Friction Coefficient ◽  
Design Parameters ◽  
The Finite Element Method ◽  
Brake Squeal ◽  
Positive Real ◽  
Drum Brake ◽  
Light Duty ◽  
Element Method

The method presented in this work intends to analyze drum brake design parameters of a light duty automotive drum brake system. The main objective of this work is to correlate brake materials and unstability parameters to identify which condition will effectively reduce squeal propensity. The methodology involves (a) the finite-element method of the brake components, namely, drum, shoes, and frictional linings, (b) static calculations to get a pre-stress state around which (c) is computed the complex eigenvalues of the system. Hence, positive real parts indicate dynamic instabilities which are explored by varying parameters, namely, the modulus of elasticity of the materials and the friction coefficient at the contact of the shoes with the drum. According to calculations, it was observed that there exist a given range of values for Young’s modulus and friction coefficient that are favorable to reduce drum brake squeal occurrence. In addition, the method proposed delivered results that match with brake squeal literature.

scholarly journals Study of the geometrical and the geotechnical stability of the concrete lozenges channels

2020 ◽  
Vol 150 ◽  
pp. 03013
Author(s):  
Latifa El Bouanani ◽  
Khadija Baba ◽  
Lahcen Bahi ◽  
Choukri Cherradi
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Optimal Design ◽  
Parametric Study ◽  
Water Erosion ◽  
New Technique ◽  
The Finite Element Method ◽  
Geotechnical Stability ◽  
A New Technique ◽  
Element Method

Several methods are proposed for improving the slopes stability. We are studying the use of a new technique: concrete lozenges channels. The objective of this technique is to stabilize the slope against water erosion. In addition, it makes it possible to combine both mechanical protection with concrete lozenges channels and protection by plant engineering techniques with plants adapted to the area. The present study is part of the continuation of a parametric study whose purpose was to define the optimal design of concrete lozenges channels. Using the finite element method, the purpose is to study the geotechnical stability of a slope stabilized by said lozenges and to define their constructive arrangements.

Heavy Duty Automotive Drum Brake Squeal Analysis Using the Finite Element Method

2021 ◽  
Author(s):  
Anderson Luiz Dias ◽  
Rômulo do Nascimento Rodrigues ◽  
Roberto de Araújo Bezerra ◽  
Pierre Lamary
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
The Finite Element Method ◽  
Heavy Duty ◽  
Brake Squeal ◽  
Drum Brake ◽  
Element Method

Parametric study on noncomposite slab-on-girder bridges with enforced frictional contact

1994 ◽  
Vol 21 (2) ◽  
pp. 237-250 ◽  
Author(s):  
Jian Jun Lin ◽  
Denis Beaulieu ◽  
Mario Fafard
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Parametric Study ◽  
The Finite Element Method ◽  
Steel Girders ◽  
Steel Girder ◽  
Composite Action ◽  
Girder Bridges ◽  
Bridge Models ◽  
Element Method

Using post-tensioned steel rods for strengthening noncomposite slab-on-steel girder bridges has the beneficial effects of both stabilizing the steel girders laterally and developing partial composite action longitudinally. The stabilizing effect and development of partial composite action are achieved by taking advantage of friction developed at the steel–concrete interface. A bridge reinforced by this technique is expected to have a higher load-carrying capacity and better load distribution under heavy traffic loads. Prestressed rods have been successfully used to strengthen 1/3 scale noncomposite bridge models in laboratory.The concrete slab-on-steel girder bridge models reinforced by prestressed rods are analyzed numerically in this paper by the use of the finite element method. Corresponding noncomposite models are also simulated for comparison to investigate the efficiency of this strengthening technique. The effects of variables such as the number of rods, prestressing level, type of load, slab thickness, steel girder slenderness, girder spacing, and ratio of radii of gyration of steel girders on the strengthening efficiency are studied by the finite element method. A full-scale bridge is analyzed to demonstrate the effect of the proposed reinforcing technique. Key words: bridge, composite action, contact, finite element, friction, parametric study, strengthening.

Girder moments in simply supported skew composite bridges

1996 ◽  
Vol 23 (4) ◽  
pp. 904-916 ◽  
Author(s):  
Tarek Ebeido ◽  
John B. Kennedy
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Parametric Study ◽  
Distribution Factor ◽  
The Finite Element Method ◽  
Simply Supported ◽  
Moment Distribution ◽  
Composite Bridges ◽  
The Moment ◽  
Element Method

The evaluation of girder moments in composite bridges becomes more urgent with the trend to increasing truck loads. The method specified by the American Association of State Highway and Transportation Officials for such an evaluation depends only on the centre-to-centre girder spacing. This method does not account for skew and therefore is extremely conservative for skew composite bridges, since the presence of skew reduces the longitudinal moments in the girders. The method proposed by the Ontario Highway Bridge Design Code (OHBDC) depends on the longitudinal and transverse rigidities of the bridge in addition to the girder spacing. However, this method is limited to bridges with skew parameters less than a certain value specified in the code. In this paper, the influence of skew on the moment distribution factor is investigated. Furthermore, the influences of other factors such as girder spacing, bridge aspect ratio, number of lanes, number of girders, and intermediate transverse diaphragms on the moment distribution factor are examined. An experimental program was conducted on six simply supported skew composite steel–concrete bridge models. The finite element method was used for the theoretical analysis. Good agreement is shown between the experimental results and the theoretical results. In addition, the finite element method was employed to conduct an extensive parametric study on more than 300 prototype composite bridge cases. The data generated from the parametric study were used to deduce expressions for the moment distribution factor for OHBDC truck loading and for dead load. An illustrative example is presented. Key words: bridges, codes of practice, composite, distribution, moment, reinforced concrete, skew, structural engineering, tests.

Simulation of tuning graphene plasmonic behaviors by ferroelectric domains for self-driven infrared photodetector applications

Nanoscale ◽  
2019 ◽  
Vol 11 (43) ◽  
pp. 20868-20875 ◽  
Author(s):  
Junxiong Guo ◽  
Yu Liu ◽  
Yuan Lin ◽  
Yu Tian ◽  
Jinxing Zhang ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Interfacial Effect ◽  
Infrared Photodetector ◽  
The Finite Element Method ◽  
Ferroelectric Domains ◽  
Element Method

We propose a graphene plasmonic infrared photodetector tuned by ferroelectric domains and investigate the interfacial effect using the finite element method.

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