Compression Isolator Mounting for Rotating Machine Vibration
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Solution Overview
Problem
Rotating machines experience vibrations due to high-speed rotation, wear, misalignment, and bearing malfunctions, leading to mechanical failures over time.
Innovation Solution
A rotating machine system incorporating a housing with compression-type vibration isolators, such as stacks of conical springs or bi-stable structures, positioned between the rotating machine and the housing to absorb and reduce vibrations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If compression-type vibration isolators are used to reduce vibrations, then vibration isolation is improved, but device complexity increases
Solution Approach 1:
The patent applies parameter changes by utilizing compression-type isolators with quasi-zero stiffness characteristics. These isolators are designed to operate at specific compression forces where their stiffness parameter approaches zero, allowing them to effectively isolate vibrations while maintaining a relatively simple structural configuration. The key is changing the operational parameters (compression force, stiffness) rather than adding complex active control systems.
Solution Approach 2:
The compression-type isolators serve as intermediary elements between the rotating machine and the housing. These isolators mediate the vibration transmission by absorbing and attenuating vibrational energy through their unique quasi-zero stiffness behavior, preventing direct rigid coupling between the rotating machine and housing while maintaining structural integrity.
2Reliability
If vibration isolators are added to the system, then mechanical failures are reduced, but the space required increases
Solution Approach 1:
The compression-type isolators with quasi-zero stiffness characteristics function similarly to flexible elements that can deform to absorb vibrations. These isolators are designed with flexible structural features that allow them to compress and extend while providing vibration isolation, effectively reducing the space required compared to traditional rigid isolation systems.
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 system effectively reduces vibrations, stabilizes the rotating machine, extends its operational life, and minimizes mechanical failures by utilizing compression-type isolators that compress at a constant force and exhibit quasi-zero stiffness for enhanced vibration isolation.
Implementation Method 1
The plurality of vibration isolators can be compression-type isolators. The compression-type isolators can be configured to compress at a substantially constant crush force in response to a force applied by the rotating machine.
Implementation Method 2
The plurality of vibration isolators can be compression-type isolators... The compression-type isolators can be stacks of conical springs, or the compression-type isolators can be bi-stable structures.
Implementation Method 3
The compression-type isolators can be stacks of conical springs, or the compression-type isolators can be bi-stable structures.
Data Source
AI summary
A rotating machine system include a rotating machine. The rotating machine system can include a housing. The housing can include an inner surface. The housing can surround at least a portion of the rotating machine. The inner surface of the housing can be spaced from the rotating machine such that a space is defined therebetween. The rotating machine system can include a plurality of vibration isolators. The vibration isolators can be positioned in the space and can be operatively connected to the rotating machine and to the inner surface of the housing. The vibration isolators can be compression-type vibration isolators.