Structural Modification of Disc Brake Judder Using Finite Element Analysis

2012 ◽  
Vol 165 ◽  
pp. 68-72
Author(s):  
Matthias Edric Bengsoon ◽  
Abd Rahim Abu Bakar ◽  
Mohd Kameil Abdul Hamid
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Structural Modification ◽  
Brake Disc ◽  
Disc Brake ◽  
Baseline Model ◽  
Element Analysis ◽  
Structural Modifications ◽  
Long Period ◽  
Commercial Software Package

Brake judder is a phenomenon of noise which its vibration can be felt physically by the driver of a vehicle. If this vibration is exposed to the driver for a long period it can lead to tiredness during driving. There are two types of judder which is cold judder and hot judder. This paper will be focusing on the hot judder. As a disc surface heats up during braking it causes both sides of the disc distort and hence produce a sinusoidal waviness around its edges. In this paper finite element analysis of hot judder is performed using a commercial software package, ABAQUS. An existing brake disc design is simulated and will be used as a baseline model. Various structural modifications made on the disc are proposed in an attempt to reduce brake judder in a disc brake assembly.

A Non-Through Silicon Via 1000+ IO Package On Package Solution For Wide IO Applications

2013 ◽  
Vol 2013 (1) ◽  
pp. 000094-000099 ◽  
Author(s):  
Laura Mirkarimi ◽  
Rajesh Katkar ◽  
Ron Zhang ◽  
Rey Co ◽  
Zhijun Zhao
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Design Optimization ◽  
High Yield ◽  
Element Analysis ◽  
Package Design ◽  
Simulation Methodology ◽  
Structural Modifications ◽  
Simulation Tools ◽  
Large Bandwidth

We are developing a new solution for wide I/O package on package applications, which is Bond Via Array (BVA) technology. The prototype vehicle built in this study has 1020 I/O's at a pitch of 0.24 mm with a high aspect ratio of approximately 10:1 and is ≤1.4 mm tall. PoP applications require large bandwidth and thinner packages challenging package developers to address warpage control for high yield processes. The design optimization of this package was established through rigorous finite element analysis of materials selection and structural modifications. The simulation methodology was validated by measuring the warpage as a function of temperature for the experimental prototypes. The details for the simulation and verification processes for the wide I/O process will be discussed. The variation between finite element analysis predictions and the experimental builds was ~10%, which allowed us to complete package design optimization with our simulation tools. The prototype build includes a standard and a low CTE substrate.

Finite Element Analysis on Brake Disc of an Educational All-Terrain-Vehicle

2014 ◽  
Vol 695 ◽  
pp. 535-538
Author(s):  
Muhammad Zahir Hassan ◽  
Abdul Munir Fudhail ◽  
Mohd Azli Salim
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Lateral Displacement ◽  
Design Stage ◽  
Brake Disc ◽  
Preliminary Design ◽  
Element Analysis ◽  
Disc Model ◽  
The Finite Element Analysis ◽  
Preliminary Design Stage

All-terrain vehicle is famously used for various purposes such as in civilian and military. The use of finite element analysis in a preliminary design stage has been demonstrated to be cost and time effective. In this paper, the finite element analysis of a brake disc for All-Terrain-Vehicle (ATV) is demonstrated. Eulerian-Lagrangian method was employed in this work where simple annular ring was used as the disc model. This study is limited to thermal and contact analysis between the disc and brake pad. The results in term of temperature and stresses distribution is obtained and presented. Moreover, the lateral displacement of the disc due to the friction contact is also shown. These results are then used to as a technical guideline in designing brake system for a fully customized ATV

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