Brake Lining Damping Device Thermal Bonding
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Solution Overview
Problem
Existing brake pads for disc brakes in commercial vehicles experience vibrations and squeaking noises during braking, which reduce component lifespan and are undesirable, and current damping solutions are costly and difficult to manufacture effectively.
Innovation Solution
A brake pad with a damping device featuring a connection profile that thermally bonds the damping element to the lining carrier plate using welding or other thermal material connections, allowing for customizable weld seams and patterns to optimize natural frequencies and damping properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a damping element is glued to the lining carrier plate, then the damping element can be attached to reduce vibrations, but the bond durability deteriorates due to frictional heat during braking
Solution Approach 1:
The patent replaces the chemical bonding method (gluing) with a mechanical connection method (form-fitting connection). The damping element is connected to the lining carrier plate through geometric interlocking features such as recesses and protrusions, eliminating the need for adhesive bonds that fail under thermal stress during braking operations.
2Reliability
If form-fitting means are provided on the damping element and lining support plate, then the connection stability improves, but the manufacturing effort and cost increase
Solution Approach 1:
The patent segments the connection features into simple geometric elements (recesses in the lining carrier plate, corresponding protrusions on the damping element) that can be independently manufactured and assembled. This segmentation allows each component to be produced separately with standard manufacturing processes, reducing overall manufacturing complexity and cost while maintaining connection stability.
3Reliability
If the damping element is connected with form-fitting means, then the connection is stable, but the damping properties cannot be adapted to design requirements
Solution Approach 1:
The patent enables dynamic adjustment of damping properties by allowing the damping element to be positioned at different locations on the lining carrier plate and by varying the geometric parameters of the form-fitting connection features. This dynamic configurability allows optimization of damping characteristics for different brake pad designs and applications while maintaining stable mechanical connection.
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 vibrations and squeaking noises by creating a stable bond that withstands high temperatures, lowers production costs, and allows for precise adjustment of natural frequencies, enhancing the brake pad's functionality and durability.
Implementation Method 1
The damping device has a connection profile which connects the at least one damping element to the lining carrier plate by thermal material bonding
Data Source
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AI summary
Disclosed is a brake lining (1) comprising a damping device (11) for a disk brake on a motor vehicle, in particular a utility vehicle, further comprising a lining supporting plate (2) that supports a friction lining, the damping device (11) being provided with at least one damping element (12) that is connected to the lining supporting plate (2). The damping device (11) comprises a profiled connecting element that connects the at least one damping element (12) to the lining supporting plate (2) by means of a thermally induced bond.