Centrifugal Pendulum Segmented Body and Damping
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Solution Overview
Problem
Existing centrifugal pendulums face challenges in effectively canceling out rotational non-uniformities while maintaining a compact design and minimizing impact noise.
Innovation Solution
A centrifugal pendulum design featuring a pendulum body with multiple parts connected via slotted guides and a damping device, allowing for increased mass distribution and noise reduction, with the damping device positioned between flange parts to limit movability and secure the assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the mass of the pendulum body is increased to cancel out greater rotational non-uniformities, then the effectiveness of vibration cancellation is improved, but the construction space required increases
Solution Approach 1:
The pendulum body is divided into multiple parts (first pendulum body part, second pendulum body part, etc.) that can be positioned at different radial distances from the axis of rotation. This segmentation allows the total mass to be distributed optimally within the same construction space, improving vibration cancellation effectiveness without increasing the overall volume occupied by the pendulum assembly.
2Reliability
If the pendulum body is made movable to a limited extent to enable oscillation, then the vibration cancellation function is achieved, but impact noise occurs during movement
Solution Approach 1:
A damping device is introduced between the pendulum body and the pendulum flange to cushion the impact before it occurs. The damping device absorbs and dissipates the impact energy, preventing direct contact between hard surfaces. This resolves the contradiction by maintaining the necessary movability for vibration cancellation while eliminating the harmful impact noise through pre-positioned damping elements.
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 enhances the ability to cancel out rotational non-uniformities and reduces impact noise, ensuring a quiet and effective drivetrain operation with minimal component count.
Implementation Method 1
A damping device is located on the connecting device. The damping device is designed to at least partially limit movability of the pendulum body relative to the pendulum flange by a direct contact of the damping device with the pendulum body.
Implementation Method 2
a centrifugal pendulum being mountable rotatably around an axis of rotation
Implementation Method 3
The pendulum body is positioned axially between the two pendulum flange parts. The first pendulum body part is coupled with the pendulum flange so that it is movable to a limited extent
Data Source
AI summary
A centrifugal pendulum which is mounted so as to be rotatable about an axis of rotation, having a pendulum body and a pendulum flange. The pendulum body includes a first pendulum body part and at least one second pendulum body part. The pendulum flange includes a first pendulum flange part and at least one second pendulum flange part. The first pendulum flange part is at least partially spaced apart axially from the second pendulum flange part. The pendulum flange is positioned axially between the two pendulum flange parts. The first pendulum body part is coupled with the flange so that it is movable to a limited extent. The second pendulum body part is connected to the first pendulum body part.