Axially Offset Decoupling Mount for Tight-Space Vibration Damping
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Solution Overview
Problem
Existing decoupling devices face challenges in effectively damping vibrations and movements of components like compressors due to limited installation space, leading to excessive stress on damping materials and reduced service life.
Innovation Solution
A decoupling device with offset stops in the vertical direction or along the cylinder axis, allowing for a more massive damping arrangement and better stress absorption, utilizing elastomer or rubber stops and a cylindrical design that extends vertically, accommodating additional damping material and reducing material thickness stress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of stationary object
If small material layer thicknesses are used for damping materials to accommodate limited installation space, then the decoupling device can be installed in tight spaces, but the damping performance is insufficient and excessive stress is applied to the damping materials
Solution Approach 1:
The patent transitions from a planar damping arrangement to a three-dimensional cylindrical structure with axially offset stops. This dimensional change allows the damping material to be distributed along the axial direction rather than being confined to a thin planar layer, thereby increasing the effective damping volume while maintaining a compact installation footprint.
Solution Approach 2:
The damping material is nested between the bracket and the stops, with multiple stops arranged at different axial positions. This nesting arrangement maximizes the use of available space by placing damping material in the gaps and cavities formed by the offset stops, effectively increasing the damping material volume within the constrained installation space.
2Volume of stationary object
If small material layer thicknesses are used for damping materials to accommodate limited installation space, then the decoupling device can be installed in tight spaces, but excessive stress is applied to the damping materials reducing service life
Solution Approach 1:
By arranging stops at different axial positions rather than in a single plane, the damping material is distributed along the axial dimension. This reduces the stress concentration on any single layer of damping material while maintaining effective vibration damping, thereby extending the service life of the damping materials.
Solution Approach 2:
The offset stops are positioned to provide progressive cushioning as vibrations occur. The stops at different axial levels engage sequentially to absorb and distribute impact stresses, preventing excessive stress on any single damping material layer and reducing material fatigue over time.
3Reliability
If the damping arrangement is made more massive to improve damping performance, then better decoupling is achieved, but the installation space requirements increase
Solution Approach 1:
The patent achieves a massive damping arrangement by utilizing the axial dimension through offset stops rather than increasing the planar footprint. The damping material is distributed along the axial direction between the bracket and multiple stops, creating a three-dimensional damping structure that provides substantial damping performance while maintaining a compact installation space.
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 decoupling device effectively decouples and dampens vibrations and movements, enhancing the decoupling function and reducing material aging, capable of handling 10 to 35 N/mm of force, while accommodating more damping material within limited space.
Implementation Method 1
The stops are at least partially produced from an elastomer and/or rubber or the like
Implementation Method 2
a damping arrangement for damping vibrations and/or movements of the component
Data Source
AI summary
A decoupling device is disclosed for connecting a component which vibrates during operation to an environment. The decoupling device comprises a bracket arrangement and a damping arrangement, and a fixing geometry and a stop geometry. The stop geometry is equipped with multiple stops which are arranged at an offset with respect to each other in the direction of the cylinder axis of the decoupling device.