Elastomer Bearing Stop Damper for Crash Load and Vibration Control
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Solution Overview
Problem
Elastomer bearings face a conflict between being flexible for vibration decoupling and providing reliable support during special events or crashes, as the movement clearance can intensify loads.
Innovation Solution
An elastomer bearing with a support block, carrier, and elastomer body, featuring a stop damper that limits maximum displacement in both radial and axial directions, ensuring load control during events like crashes, and incorporating a cylindrical structure and elastomer bushing for dual decoupling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the elastomer bearing provides movement clearance for flexibility, then the vibration decoupling is improved, but the loads are intensified during special events or crashes
Solution Approach 1:
The stop damper is pre-configured within the bearing structure to provide beforehand cushioning against excessive loads. During normal operation, the elastomer body provides flexibility, but the stop damper is positioned to engage before crash loads can intensify, preventing load amplification in advance
2Ease of manufacture
If the stop damper is arranged as a separate component, then the mounting effort is reduced, but the device complexity increases
Solution Approach 1:
The stop damper is merged with the support block and carrier to form an integrated assembly. This combining reduces the number of separate components that need to be mounted, thereby reducing mounting effort while maintaining the functional complexity needed for both vibration decoupling and crash protection
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 solution effectively limits loads and provides reliable support while maintaining vibration decoupling, ensuring safety and stability in both normal and crash conditions.
Implementation Method 1
an elastomer body (16) which connects the carrier (14) to the bearing element (28)
Implementation Method 2
a stop damper (46) is provided, which is arranged in the region of the interface between the support block (12) and the carrier (14) and limits a maximum displacement of the two components, support block (12) and carrier (14), relative to one another both in a radial direction and in an axial direction
Implementation Method 3
The bearing element (28) is preferably mounted in a bearing bushing (24) by means of an elastomer bushing (18), such that dual decoupling is obtained. In this case, the elastomer body (16) and the elastomer bushing (18) can be designed to decouple at different excitation frequencies
Data Source
AI summary
An elastomer bearing includes a support block, a carrier, a bearing element, a stop damper, and an elastomer body. The bearing element is attached to the support block. The elastomer body connects the carrier to the bearing element. The support block and the carrier, as viewed in an axial direction of the bearing element, engage with one another with play. The stop damper is arranged in the region of the interface between the support block and the carrier. The stop damper limits a maximum displacement of the support block and the carrier, relative to one another both in a radial direction and in an axial direction.