Pendular Damper Stop Damping for Radial Drop Shock Reduction
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Solution Overview
Problem
Conventional pendular damping devices in motor vehicle transmission systems inadequately absorb shocks between pendulum bodies and supports, leading to noise and wear issues during radial fall and saturation phases.
Innovation Solution
Incorporating a radial protrusion on the pendulum body that passes through an opening in the abutment damping system, allowing direct contact with the support and optimizing shock absorption, while reducing the risk of rolling member loss or jamming and extending the service life of the damping system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If an elastomer is interposed between the rivet and the support to dampen the coming into abutment position, then noise and wear are reduced, but the shock absorption is insufficient
Solution Approach 1:
The abutment damping system combines multiple materials (elastomer, metal, plastic) to achieve both noise reduction and adequate shock absorption. The elastomer provides vibration damping while the metal or plastic components provide structural support and additional damping capacity, creating a composite structure that resolves the contradiction between reducing harmful factors and maintaining reliability.
2Reliability
If the abutment damping system is made larger to optimize shock absorption, then shock absorption is improved, but the device complexity increases
Solution Approach 1:
The abutment damping system is designed as a compact structure where components are nested within each other. The radial protrusion passes through an opening in the damping system, allowing the damping elements to be contained within a smaller overall volume while maintaining adequate shock absorption capacity, thus reducing device complexity.
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 configuration reduces noise and shock associated with radial drops, enhances shock absorption, and increases the service life of the damping system by ensuring direct contact and uniform compression, thereby improving the overall performance and reliability of the pendular damping device.
Implementation Method 1
an abutment damping system directly carried by the pendulum body and allowing at least to dampen the coming into abutment position against the support of said pendular body during the radial fall and/or the saturation of the latter
Implementation Method 2
This configuration reduces noise and shock associated with radial drops, enhances shock absorption
Implementation Method 3
The presence of the radial protrusion passing at least partially through the opening of the abutment damping system makes it possible to obtain direct contact between the pendulum body and the support after a predetermined level of radial compression of the damper element
Data Source
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AI summary
Disclosed is a pendular damping device (10) intended to be incorporated in a drive chain of a motor vehicle, in particular in a clutch, comprising: a support (12) that can rotate about an axis of rotation (X), a pendular body (13), the movement of which with respect to the support is guided by at least one rolling member (40), and a stop damping system (50) carried directly by the pendular body and enabling at least damping of the coming of the pendulum body into a stop position against the support during the radial drop and/or the saturation of said pendular body, characterised in that the pendular body comprises at least one radial protrusion (25) suitable for passing at least partially through an opening (56) made in the stop damping system.