Segmented Pendulum Absorber Carrier for Flexible Vibration Damping
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Solution Overview
Problem
Existing centrifugal pendulum devices for vibration absorption in motor vehicle drive trains require multiple parts to be exchanged for different internal combustion engines, leading to increased inventory and weight, while maintaining flexibility and optimal vibration damping.
Innovation Solution
A centrifugal pendulum device with a weight carrier disc composed of a first plate and multiple second plates, where the second plates have guide tracks with different geometries, allowing for customization of vibration damping profiles without the need for extensive part exchanges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the weight carrier disc is designed as a single thick plate to support guide tracks for roller elements, then structural strength and guide track support are improved, but weight increases and flexibility for different applications decreases
Solution Approach 1:
The weight carrier disc is divided into two separate plates: a first plate providing structural support and a second plate containing the guide tracks. This segmentation allows each plate to be optimized for its specific function, reducing overall weight while maintaining strength and flexibility for different applications.
2Strength
If the weight carrier disc is designed as a single thick plate to support guide tracks, then guide track support is improved, but weight increases and adaptability for different vibration orders decreases
Solution Approach 1:
By separating the guide track-containing second plate from the structural first plate, the design enables easy exchange of second plates with different guide track geometries to match different vibration orders, significantly improving adaptability.
Solution Approach 2:
The first plate serves as a universal structural base that can support multiple different second plates with varying guide track configurations, allowing a single first plate to serve multiple application purposes.
3Reliability
If different weight carrier discs are provided for different vibration orders, then optimal vibration damping is achieved, but inventory complexity and weight increase
Solution Approach 1:
The modular design with interchangeable second plates allows the same first plate to be used across different applications, reducing inventory complexity by eliminating the need for completely different weight carrier discs for each vibration order.
Solution Approach 2:
The design merges the common structural elements (first plate) with the application-specific elements (second plates), allowing standardized components to be combined in different configurations to achieve optimal damping for various vibration orders.
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 design reduces weight by allowing thinner first plates and achieves flexibility by using interchangeable second plates with varying guide track geometries, thereby optimizing vibration damping for different applications with reduced inventory and weight.
Implementation Method 1
Roller elements are provided which extend axially through the weight carrier disc and into the side elements of the centrifugal weight and contact guide tracks in the weight carrier disc and in the side elements and roll therein so that the displacement of the centrifugal weight relative to the weight carrier disc is guided in a defined path of movement
Implementation Method 2
Centrifugal pendulum absorbers generally include centrifugal weights are arranged displaceably on a weight carrier disc, where the centrifugal weights are provided as side elements on both sides of the weight carrier disc
Implementation Method 3
the centrifugal weight which acts as a pendulum mass to damp vibration
Data Source
AI summary
A centrifugal pendulum device is provided having a weight carrier disc an opening and guide tracks arranged on a radially outer region thereof and including damper spring openings in a radially inner region thereof. A centrifugal weight is disposed displaceably on the weight carrier disc, with the centrifugal weight including two side elements that each include weight guide tracks, and spacing bolts arranged between the two side elements. At least one of the spacing bolts extends through the opening of the weight carrier disc, and the centrifugal weight is guided displaceably on the weight carrier disc by roller elements that run on the guide tracks and the weight guide tracks. In order to reduce weight and provide additional flexibility, the weight carrier disc comprises a first plate that includes the radially inner region that is connected to at least one second plate that includes the radially outer region.