Brake Pad Damping Element Design for Vibration Control
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Solution Overview
Problem
Existing brake pad arrangements with damping plates for disc brakes face high production costs and complexity due to the need for custom extensions for different-sized disc brakes, and the attachment process is labor-intensive, leading to scrap and deformation issues.
Innovation Solution
A separate damping element is designed to attach easily to the pad back plate, eliminating the need for extensions and allowing for optimal damping performance across various disc brake sizes, using a u-shaped form with elastic fixing elements for secure attachment and enhanced contact surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If extensions are added to the damping plate for different-sized disc brakes, then the damping effect is improved, but the device complexity and production cost increase
Solution Approach 1:
The damping plate is divided into a base plate and separate extensions that can be attached later. This segmentation allows the extensions to be added only when needed for specific disc brake sizes, reducing the base complexity while maintaining the ability to achieve effective damping when extensions are present.
Solution Approach 2:
The damping plate is designed as a universal base component that can work with different disc brake sizes through optional extensions. The base plate serves all applications, while extensions provide size-specific adaptation, making the system universally applicable across multiple brake sizes without requiring completely different plates for each size.
2Reliability
If extensions are stamped as one piece with the damping plate, then the damping effect is improved, but the scrap material increases
Solution Approach 1:
By separating the damping plate into a base plate and extensions that are attached later, the base plate can be produced as a standard component with minimal material waste. Extensions can be produced separately in smaller quantities matching actual demand for different brake sizes, significantly reducing the scrap material that would result from producing large one-piece plates with extensions for all possible sizes.
3Reliability
If extensions are bent round at right angles to increase damping effect, then the damping effect is improved, but the attachment process becomes labor-intensive
Solution Approach 1:
The extensions are pre-formed with the correct bending and shape during the stamping process, so that no additional labor-intensive bending operations are required during assembly. The extensions arrive at the assembly stage already in their final configured state, ready for attachment to both the damping plate and the brake carrier, significantly reducing manual labor requirements.
4Reliability
If custom extensions are produced for different-sized disc brakes, then the damping effect is optimized, but the production cost increases
Solution Approach 1:
A universal base damping plate design serves all disc brake sizes, eliminating the need to produce completely different plates for each size. Only the extensions need to be varied for different sizes, and these can be produced as separate components in smaller batches, significantly reducing the tooling and production costs associated with creating entirely different damping plates for each brake size while still optimizing damping for each application.
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
This solution reduces production costs and simplifies the attachment process while providing effective damping of frictional vibrations, improving noise reduction and durability by ensuring a secure, adaptable damping solution for different-sized disc brakes.
Implementation Method 1
at least a part of the damping element bears in a manner free from play against the pad back plate, in order to achieve a damping effect
Implementation Method 2
the separate damping element is provided for avoiding frictional vibrations on the brake pad arrangement
Data Source
AI summary
A brake pad arrangement for a vehicle brake, having a frictional pad, a pad back plate and a damping plate that is arranged on the pad back plate, the brake pad arrangement having a separate damping element which is provided in order to avoid frictional vibrations of the brake pad arrangement.