Annular-Cavity Rotational Element for Compressor Resonance Damping
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Solution Overview
Problem
Rotational elements in compressor assemblies often experience resonance at operational speeds, leading to high vibrational amplitudes and potential fatigue failure.
Innovation Solution
The rotational element features an annular cavity separating the central and outer parts, with holes or channels in the outer part containing fixation means that absorb vibration energy or keep the central part fixed radially, thereby preventing resonance or reducing its effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the rotational element is driven at high rotational speeds, then productivity is improved, but resonance occurs leading to high vibrational amplitudes and potential fatigue failure
Solution Approach 1:
The patent applies preliminary action by introducing fixation means (such as dampers, pins, or rigid connectors) into the rotational element before operation to pre-establish constraints that prevent resonance. These fixation means are positioned to couple central and outer parts, thereby preemptively reducing vibrational amplitudes that would otherwise occur during high-speed rotation, allowing the system to operate at higher speeds without reliability concerns.
2Reliability
If fixation means are added to reduce vibration, then reliability is improved, but device complexity increases
Solution Approach 1:
The patent applies merging by integrating the fixation means directly into the existing structure of the rotational element. Rather than adding separate external vibration control devices, the fixation means are incorporated as integral components (such as embedded dampers, built-in pins, or fused connectors) that combine the structural support function with the vibration reduction function, thereby improving reliability without proportionally increasing device complexity.
Solution Approach 2:
The fixation means act as intermediaries between the central and outer parts of the rotational element. These intermediaries (such as dampers or flexible connectors) mediate the interaction between different parts, allowing controlled movement or force transmission that reduces vibrational amplitudes while maintaining the overall structural integrity and rotational functionality of the element.
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 solution effectively dampens vibrational amplitudes and shifts resonance frequencies to higher harmonics, reducing the risk of failure due to resonance and enhancing operational reliability.
Implementation Method 1
fixation means are fixedly mounted which each extend through the corresponding hole or channel and which have a tip which is abutting against the central part... effectively dampens vibrational amplitudes
Data Source
AI summary
A rotational element is internally provided with at least one annular cavity which separates a central part from an outer part of the rotational element, wherein the outer part is provided with one or more holes or channels which extend from an outer wall of the outer part to the annular cavity and wherein in the holes or channels fixation means are fixedly mounted which each extend through the corresponding hole or channel and which have a tip which is abutting against the central part.