Particle Damper Vessel With Segmented Seal For Engine Clearance
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Solution Overview
Problem
Existing particle dampers face challenges in effectively reducing vibrations and undesired movements in devices like engines due to limited clearance with surrounding components, and there is a need for a solution that can minimize contact with these components while maintaining efficient vibration damping.
Innovation Solution
A particle damper assembly featuring a vessel with a ductile material construction, a seal with a rubber-like material, and a plate that engages the vessel to retain energy dissipating loose particles, allowing for non-cylindrical shapes and configurations to fit specific environments, thereby minimizing contact with engine components and ensuring effective damping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a particle damper is configured with limited clearance to surrounding engine components, then the damping effectiveness is improved, but the risk of contact with surrounding components increases
Solution Approach 1:
The particle damper is segmented into a two-part construction with a first part and a second part that can be separately manufactured and then joined together. This segmentation allows for precise control of the clearance geometry and enables the damper to be configured with optimal damping performance while maintaining safe clearance distances from surrounding engine components.
2Ease of manufacture
If a particle damper uses a two-part construction with joining features, then the ease of manufacture is improved, but the device complexity increases
Solution Approach 1:
The joining feature integrates multiple functions into a single structural element: it serves as both the connection interface between the two parts and as a mounting interface for attaching the particle damper to the engine. This merging of functions simplifies the overall construction by eliminating the need for separate joining and mounting operations, thereby reducing device complexity while maintaining manufacturing flexibility.
Solution Approach 2:
The joining feature is designed to perform multiple functions simultaneously: it joins the first and second parts together, provides structural support, and serves as the attachment interface for mounting the particle damper to the engine. This multi-functionality reduces the number of separate components needed, simplifying the overall device structure while enabling easy manufacture.
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 provides efficient vibration damping with minimal contact to engine components, accommodating various shapes and environments, and maintaining the integrity of the damping material by using a rubber-like seal to prevent particle escape and corrosion.
Implementation Method 1
a particle damper may be configured to be attached to an engine to reduce and/or minimize vibration and/or other undesired movements
Implementation Method 2
a vessel containing an energy dissipating material (e.g., loose particles)
Data Source
AI summary
An assembly for damping the movement of a vibrating body includes an energy dissipating material, a vessel, and a seal. The energy dissipating material may include one or more types of loose particles. The loose particles may include similar and/or dissimilar materials or a mixture thereof. The loose particles may at least partially fill the vessel. The vessel may be configured to conform to requirements of an environment of the vibrating body and to retain and/or store the loose particles. The seal may include a molded material, a plate, and/or a flange. In an embodiment, the plate may be at least partially encompassed within the seal, and the seal, plate, and/or flange may be configured to engage the vessel and/or to retain the loose particles within the vessel.