Slotted Damping Hole Mount for Heat-Resistant Vibration Isolation
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Solution Overview
Problem
Existing mount systems, particularly in turbomachines, face challenges in effectively damping vibrations while maintaining structural integrity and durability, especially under high heat conditions where elastomers degrade, leading to complex and costly solutions.
Innovation Solution
A hybrid hard-soft mount system with a continuous metal-to-metal connection using slits and ligaments to create damping holes, allowing for vibration attenuation without relying on elastomers, and optionally incorporating resilient materials for tunable damping properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If elastomers are used to reduce vibration transfer, then vibration damping is improved, but reliability deteriorates due to degradation and disintegration over time
Solution Approach 1:
The patent removes elastomers from the mounting system entirely, replacing them with a hard-mounted vibration isolation mechanism using tuned mass dampers and inertial elements. This extraction eliminates the reliability issues associated with elastomer degradation while maintaining vibration damping capabilities through alternative physical principles.
Solution Approach 2:
The patent replaces the soft mechanical connection (elastomers) with a hard mechanical connection incorporating tuned mass dampers and inertial elements. The vibration isolation is achieved through dynamic mechanical principles rather than passive elastic materials, substituting the mechanical system to eliminate material degradation issues.
2Object-generated harmful factors
If elastomers are used for vibration damping, then vibration attenuation is improved, but device complexity increases due to replacement requirements
Solution Approach 1:
The patent combines the mounting function and vibration isolation function into a single integrated hard-mounted structure. The tuned mass dampers and inertial elements are incorporated directly into the mounting assembly, merging multiple functions into one system rather than requiring separate elastomeric components and their replacements.
Solution Approach 2:
The hard-mounted vibration isolation system serves multiple functions simultaneously: structural support, vibration damping, and isolation. The same mechanical structure that provides mounting also provides vibration attenuation through the tuned mass dampers, eliminating the need for separate elastomeric vibration isolation components.
3Reliability
If hard rigid connections are used to support objects, then reliability is improved, but vibration transfer increases
Solution Approach 1:
The patent introduces dynamic elements (tuned mass dampers and inertial elements) into the hard-mounted system. These dynamic components allow the structure to respond dynamically to vibrations, absorbing and isolating vibrational energy while maintaining the structural integrity of the hard connection, rather than using static rigid connections that directly transmit all vibrations.
Solution Approach 2:
The tuned mass dampers and inertial elements act as intermediary components between the hard-mounted structure and the vibrations. These intermediaries absorb and dissipate vibrational energy, preventing direct transmission of vibrations through the hard connection while maintaining structural support.
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 provides effective vibration damping and structural support across a broad range of applications, maintaining performance under elevated temperatures and allowing for tunable damping characteristics, minimizing weight and cost while ensuring reliability.
Implementation Method 1
the damping hole with the slits is configured to deflect to reduce the transmission of vibrations between the body and the frame
Data Source
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AI summary
A mount system provides vibration isolation and support through a hybrid hard-soft configuration. The mount system includes a frame (28) and a body (24) connected with the frame. A first coupling element (80) is provided on the body and defines a first opening (86). A second coupling element (84) is provided on the frame and defines a second opening (90). A pin (50) extends through the first and second openings to couple the body to the frame. At least one of the first and/or second openings operates as a damping hole (86) with a series of slits (94) disposed about the damping hole, so that the damping hole with the slits is configured to deflect to reduce the transmission of vibrations between the body and the frame.