Elastomer-Spring Vibration Damper With Direct Mass Support
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Solution Overview
Problem
Conventional vibration dampers for motor vehicle components are costly, require complex assembly, and occupy significant structural space due to multiple components and precise pretensioning, particularly with pin elements that limit redirection and contribute to cardanic behavior.
Innovation Solution
A vibration damper design featuring a damper mass directly connected to receptors via elastomer springs, eliminating the need for pin elements, allowing the damper mass to act as a redirection device, and distributing damping effect externally, enabling a modular and cost-effective construction with adjustable vibration frequency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If pin elements are used to limit redirection of the damper mass, then the damper mass redirection is limited, but the device complexity and production cost increase
Solution Approach 1:
The invention removes the pin element from the system entirely. The damper mass is connected directly to the retention apparatus via the resilient apparatus without any intermediate pin elements. The resilient apparatus itself provides the redirection limitation function that was previously achieved by pin elements, thereby eliminating the need for separate limiting components.
Solution Approach 2:
The invention combines the redirection limitation function with the resilient apparatus. Instead of having a separate pin element to limit redirection, the resilient apparatus is designed to inherently provide both the damping function and the redirection limitation. This merging of functions reduces the total number of components while maintaining the necessary operational constraints.
2Ease of operation
If pin elements and stop devices are used to limit redirection, then the damper mass path is controlled, but the structural space required increases
Solution Approach 1:
The invention eliminates the need for separate stop devices and pin elements that occupied structural space. By integrating the path control function into the resilient apparatus itself, the design removes the additional components that would have been required to define and limit the damper mass movement path, thereby reducing the overall structural space requirement.
3Reliability
If multiple separate components are used in the vibration damper, then the damping function is achieved, but the production cost increases
Solution Approach 1:
The invention merges multiple functions into fewer components. The resilient apparatus is designed to simultaneously provide vibration damping, redirection limitation, and path control that were previously achieved by separate pin elements and stop devices. This reduction in component count directly lowers production costs while maintaining all necessary damping functions.
Solution Approach 2:
The resilient apparatus is designed as a multi-functional component that performs multiple roles: it provides the resilient coupling for damping, limits the redirection of the damper mass, and controls the movement path. This universal component replaces several specialized components, simplifying manufacturing and reducing overall production cost.
4Reliability
If precise predefined pretensioning is required, then the damping performance is optimized, but the assembly complexity increases
Solution Approach 1:
The resilient apparatus is designed to automatically establish the correct pretensioning during assembly without requiring precise external adjustment. The geometric configuration and mechanical constraints of the direct connection between the damper mass and retention apparatus cause the resilient apparatus to self-adjust to the optimal pretensioning state, eliminating the need for complex assembly procedures involving precise pretensioning adjustments.
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 effectively dampens vehicle vibrations, reduces production costs, and minimizes structural space, while improving cardanic behavior and durability through simplified assembly and adjustable vibration frequencies.
Implementation Method 1
at least two elastomer springs, wherein the elastomer springs couple the damper mass to the receptors with an ability to vibrate
Implementation Method 2
Vibration dampers are used to damp the vibrations of motor vehicle components
Data Source
AI summary
A vibration damper for damping vibrations of a motor vehicle component is disclosed. The vibration damper is passed through by a transverse center plane, and the vibration damper includes a retention apparatus that can be fixed to a motor vehicle component. In embodiments, the vibration damper has at least two receptors that each have an inner side facing the transverse center plane and an outer side facing away from the transverse center plane, has a damper mass with a central longitudinal axis, and has at least two elastomer springs. In embodiments, the elastomer springs couple the damper mass to the receptors with an ability to vibrate, and at least one of the elastomer springs has a connection portion, between the damper mass and respective receptor, that extends at least mainly externally with respect to the respective receptor.