Centrifugal Pendulum Flange Layout for Multi-Order Vibration Damping
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Solution Overview
Problem
Existing centrifugal pendulum devices require multiple parts and adaptations to effectively dampen torsional vibrations across different internal combustion engines, leading to increased complexity and part requirements.
Innovation Solution
A centrifugal pendulum device design featuring a flange with multiple openings and guide tracks, allowing the same flange to accommodate different centrifugal weights with varying guide tracks, enabling versatile use across various applications by selecting the appropriate opening based on the intended vibration damping order.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the flange and centrifugal weights are exchanged to adapt to different vibration orders, then the centrifugal pendulum device can be optimized for specific applications, but the number of parts increases
Solution Approach 1:
The flange is designed with multiple openings that can accommodate different guide track configurations, allowing a single flange to serve multiple applications by simply changing the guide tracks or centrifugal weights. This multi-functional design eliminates the need for multiple specialized flanges, directly resolving the contradiction between adaptability and part quantity.
Solution Approach 2:
The guide tracks are segmented into different configurations that can be selectively used in different openings of the flange. This segmentation allows the system to adapt to different vibration orders by selecting appropriate guide track segments, maintaining versatility while using a single integrated flange structure.
2Reliability
If multiple flanges with different guide track contours are maintained for different engines, then optimal vibration damping can be achieved, but device complexity increases
Solution Approach 1:
Multiple guide track configurations that would traditionally require separate flanges are merged into a single flange structure with multiple openings. Each opening can accommodate different guide tracks or centrifugal weights, combining the functionality of multiple flange variants into one component, thus reducing device complexity while maintaining vibration damping effectiveness.
Solution Approach 2:
The system transitions from static, dedicated flange designs to a dynamic configuration where guide tracks and centrifugal weights can be selectively positioned in different openings based on the specific engine application, allowing optimal vibration damping without committing to a fixed design.
3Manufacturing precision
If centrifugal weights are fixed to specific flange positions, then precise vibration damping is achieved, but the device lacks versatility for different applications
Solution Approach 1:
The centrifugal weights are not permanently fixed but can be dynamically positioned in different openings of the flange depending on the application requirements. This dynamic positioning capability allows precise vibration damping for specific engines while maintaining the ability to adapt to different applications by reconfiguring the weight positions.
Solution Approach 2:
The system allows changing the operational parameters by selecting different openings and guide track configurations for the centrifugal weights. This parameter change capability enables precise vibration damping for different engine types without sacrificing versatility, as the same flange can be reconfigured for different applications.
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 the number of parts needed and ensures effective torsional vibration damping across different applications, maintaining balance and adaptability without the need for extensive component exchanges.
Implementation Method 1
roller elements are provided which extend axially through the flange and into the side elements of the centrifugal weight and, there, are in contact with guide tracks in the flange and in the side elements of the centrifugal weight and roll thereover
Implementation Method 2
centrifugal weights are arranged displaceably on a flange
Implementation Method 3
the at least one centrifugal weight corresponds to a pendulum mass that the intended damping can displace
Data Source
AI summary
A centrifugal pendulum device having at least one flange and at least one centrifugal weight disposed displaceably on the flange. The centrifugal weight is guided displaceably on the flange by roller elements; the flange has openings with guide tracks situated radially outwardly, and the centrifugal weight has two side elements with a guide rail arranged therebetween and has guide tracks; the guide rail is inserted into an opening in the flange; the weight guide tracks are arranged radially inside the flange guide track such that they oppose each other in the radial direction at the same axial height, and roller elements are arranged radially therebetween; the flange having first and second openings with respective first and second guide tracks; the at least one centrifugal weight being inserted into one of the first or second openings depending on the choice of rotary vibration to be damped.