Brake Disc Ceramic Insert Vibration Damping
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing brake disks for motor vehicles fail to effectively dampen vibrations and maintain balance due to irregular material distribution and lack of adaptive vibration control.
Innovation Solution
A brake disk design featuring a ceramic insert portion with uniformly distributed openings of varying sizes and contours within the friction ring, ensuring complete material integration and a compact, reliable connection, which enhances vibration damping and weight reduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If an insert portion is cast in the friction ring with irregular material distribution, then the brake disk can be manufactured, but vibration damping is insufficient and balance is compromised
Solution Approach 1:
The insert portion is segmented into multiple identical segments arranged symmetrically around the friction ring. Each segment contains openings of varying sizes and contours, but the overall distribution is uniform. This segmentation allows the irregularities of individual segments to cancel each other out, achieving both vibration damping through material extension and balance through symmetric distribution.
Solution Approach 2:
Within each segment of the insert portion, openings of different sizes and contours are intentionally created to generate asymmetric material extension patterns. These asymmetric patterns within segments contribute to vibration damping, while the symmetric arrangement of identical segments ensures overall balance. The asymmetry is localized rather than global, resolving the contradiction between irregular material distribution and balance.
2Weight of moving object
If the insert portion is made from ceramic material with porous structure, then weight is reduced and connection is improved, but manufacturing complexity increases
Solution Approach 1:
The insert portion is made from ceramic material with a controlled porous structure. The porosity reduces the weight of the insert portion while the porous surface area enhances the connection with the friction ring material that extends through the openings. The ceramic material's inherent porosity is utilized beneficially rather than being a manufacturing defect, turning a potential complexity into an advantage for both weight reduction and connection improvement.
3Adaptability or versatility
If openings of different sizes and contours are provided in the insert portion, then vibration behavior can be optimized, but manufacturing precision requirements increase
Solution Approach 1:
The insert portion features openings of different sizes and contours at specific locations to create local variations in material extension. These local quality differences allow optimization of vibration behavior in different radial and tangential directions. The openings are strategically positioned and sized to address specific vibration modes, with the understanding that precise control of these local features is necessary to achieve the desired vibration characteristics.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The design achieves optimal vibration damping and balance by adapting the vibration behavior through the number and configuration of openings, ensuring a lightweight and efficient brake disk operation.
Implementation Method 1
the insert portion is constructed in the form of an annular disk and is arranged in the friction ring so as to be coaxial with respect to the friction ring so that the insert portion is surrounded by the material of the friction ring over the entire periphery... An advantageous vibration damping of the brake disk can thereby be readily achieved
Implementation Method 2
the porous surface of the ceramic insert portion allows material of the friction ring to be able to be partially introduced at the edge of the insert portion, whereby a particularly compact and reliable connection between the friction ring and the insert portion is ensured
Data Source
AI summary
A brake disk for a motor vehicle includes a friction ring and at least one insert portion. The insert portion is located within and arranged coaxially with the friction ring, and is configured so as to possess an annular disk shape and define a plurality of openings. The friction ring is configured such that material of the friction ring fills the plurality of openings.